User GuiddeSurveyor®
® Mutattion De
etectionn Kit forr Standaard Gel
Eleectrophoresis
Thiss guide appplies to cattalog numbbers: 706025, 7060200, 706021
wwww.IDTDNA.com
m/Surveyor

Revision: 1
For Research Use
U Only1|PageTable of Contents
Introduction ........................................................................................................................................................... 3
Kit Components and storage................................................................................................................................... 4
Detecting Mutations with the IDT Surveyor Mutation Detection Kit ......................................................................... 4
An Overview .................................................................................................................................................... 4
Factors Affecting the Quality of Results ............................................................................................................ 4
Examples of Results ......................................................................................................................................... 6
Step‐by‐Step Instructions—Detecting Mutations with Surveyor Nuclease ............................................................. 10
Step 1—PCR Amplification of Reference and Test Samples .................................................................................. 10
Control Experiments—Using Control G and Control C Plasmid DNA ....................................................................... 12
Step 2—DNA Duplex Formation ............................................................................................................................ 14
Step 3—Treatment with Surveyor Nuclease ......................................................................................................... 16
Step 4—Analysis of DNA Fragments ...................................................................................................................... 18
Appendix B: Agarose Gel Electrophoresis .............................................................................................................. 21
Preparing Gels ....................................................................................................................................................... 21
Running Gels .......................................................................................................................................................... 21
Photographing Gels ............................................................................................................................................... 22
Appendix C: Polyacrylamide Gel Electrophoresis ................................................................................................... 23
Preparing Gels ....................................................................................................................................................... 23
To analyze Surveyor Nuclease digestion products by PAGE:................................................................................. 23
Photographing Gels ............................................................................................................................................... 23
Appendix A: SURVEYOR Nuclease Reaction Conditions ......................................................................................... 19
Appendix D: Troubleshooting ............................................................................................................................... 21
Can’t fix your problem? ........................................................................................................................................ 26
Specific examples of use of Surveyor Nuclease ..................................................................................................... 27
References ........................................................................................................................................................... 28

2|PageIntroduction
IDT Surveyor Mutation Detection Kits use a mismatch‐specific DNA endonuclease to scan for known andunknown mutations and polymorphisms in heteroduplex DNA. Surveyor Nuclease, the key component of
the kit, is an endonuclease that cleaves DNA with high specificity at sites of base‐substitution mismatchand other distortions[1]. These DNA endonucleases cut both strands of a DNA heteroduplex on the 3’‐sideof the mismatch site. Insertion/deletion mismatches and all base‐substitution mismatches are recognized,
but the efficiency of cleavage varies with the sequence of the mismatch[1].
Surveyor Nuclease has been shown to be a robust and reproducible tool for mutation detection[1‐3]. It has
been used to detect accurately a variety of mutations and polymorphisms in the human, mammalian,bacterial and plant genomes (see Appendix D)
The Surveyor Mutation Detection Kit for Standard Gel Electrophoresis has been designed to cleave
unlabeled DNA fragments at mismatched sites for subsequent analysis by agarose gel electrophoresis orpolyacrylamide gel electrophoresis (PAGE). DNA 200 to 4000 bp long can be analyzed using agarose gelelectrophoresis while smaller fragments (<1000 bp) can be analyzed using polyacrylamide gelelectrophoresis (PAGE).
The Surveyor Mutation Detection Kit was developed for use with Transgenomic Optimase or Maximase
DNA polymerases and reaction conditions have been optimized for the reaction buffers included withthose enzymes. However, the Surveyor Mutation Detection Kit will perform well with many othercommercially available polymerase buffers, with some minor adjustments. Digestion reaction conditions
for DNA amplified by PCR using most commercially available DNA polymerases are provided in Appendix
A; these reaction conditions increase the amounts of mismatch cleavage products generated by Surveyor
Nuclease from DNA containing genetic variations and reduce non‐specific enzymatic activity.

To use this kit successfully, we strongly recommend that you:

Read this manual thoroughly and carefully follow the instructions and guidelines provided.



Verify the compatibility of your PCR reaction buffers and conditions with Surveyor Mutation
Detection kits by referring to Appendix A (page).



Perform the control experiments outlined in the section Control Experiments—Using Control C
and Control G Plasmid DNA.

If you have further questions or need assistance, please contact IDT Customer Care at:
USA & Canada
custcare@idtdna.com
1–800–328–2661

Europeeutechsupport@idtdna.com+32 (0) 16 28 22 60

Web Chat at: www.idtdna.com

Asia Pacificasiacustcare@idtdna.com+65 6775 9187

Australia
auscustcare@idtdna.com
1800 092 259

Kit Components and storage
The Surveyor Mutation Detection Kit for Standard Gel Electrophoresis is available in three sizes:

25‐Reaction Kit (Catalog No. 706025)
100‐Reaction Kit (Catalog No. 706020)
1000‐Reaction Kit (Catalog No. 706021)

Component

Surveyor Nuclease S
Surveyor Enhancer S
0.15 M MgCl2 Solution
Stop Solution
Control C
Control G

25‐Reaction Kit(706025)
Amount Provided
30 µL
30 µL
250 µL250 µL
20 µL
20 µL

100‐Reaction Kit(706020)
Amount Provided
4 x 30 µL
4 x 30 µL
3 x 250 µL
3 x 250 µL
20 µL
20 µL

1000‐Reaction Kit(706021)
Amount Provided
1 x 1.0 mL
1 x 1.0 mL
3 x 1.5 mL
3 x 1.5 mL
20 µL
20 µL

Store the kit at –20°C. When stored correctly, the kit will perform up to 6 month after purchase.

Detecting Mutations with the IDT Surveyor Mutation Detection Kit
An Overview
Mutation detection and confirmation with Surveyor Nuclease involves four steps:
Step 1—Prepare PCR amplicons from mutant (test) and wild‐type (reference) DNA.
Step 2—Mix equal amounts of test and reference DNA; hybridize them by heating and coolingthe mixture to form hetero‐ and homoduplexes.
Step 3—Treat the annealed heteroduplex/homoduplex mixture with Surveyor Nuclease. The
reference DNA alone, treated similarly, serves as a negative control.
Step 4—Analyze the DNA fragments by agarose gel electrophoresis or polyacrylamide gelelectrophoresis. The formation of new cleavage products, due to the presence of one or moremismatches, is indicated by the presence of additional bands. The relative size of these cleavage
products indicates the location of the mismatch or mismatches.

Factors Affecting the Quality of Results
The following factors influence the quality of results when using Surveyor Nuclease.
The quality of the genomic DNA to be amplified

High quality DNA (from fresh or frozen cells or tissue) should be used. The DNA should have aconcentration of >5 ng/µL as determined by absorbance at 260 nm, have an absorbance ratio at
260/280 nm of >1.7 and be >90% DNA (i.e. free of most tRNA and rRNA contamination as judged
by appearance on an agarose gel). Store DNA samples at –20°C.
If the DNA template is extracted from paraffin‐embedded tissue, several additional precautions
can be taken. The extracted DNA can be treated with uracil DNA glycosylase to preventamplification of DNA fragments containing deaminated C residues[4]. Often a high percentage of
the A260 adsorbing material extracted from paraffin‐embedded tissue does not amplify wellduring PCR. Using a larger amount of starting DNA, e.g. ~50 ng versus 10 ng, may help to
produce a reasonable amplification product.
The quality and quantity of the PCR amplified DNA

PCR should produce a sufficiently high yield (>25 ng/µL) of a single amplified species of thecorrect size. Verify each amplified DNA product produces a single band of the expected size by
gel electrophoresis or other methods. We strongly recommend the use of a proofreading DNA
polymerase (e.g., Optimase Polymerase; Transgenomic) to reduce the amount of basemisincorporation during PCR (which leads to the generation of ‘false’ mutations and spurious
Surveyor Nuclease cleavage fragments). Similarly, non‐specific PCR fragments can be interpreted
as mutations and can mask Surveyor Nuclease mismatch cleavage products. If possible, areference DNA should be digested with Surveyor Nuclease and run to exclude spurious
background by visual comparison. Primer‐dimers should be strenuously avoided as theirpresence dramatically inhibits Surveyor Nuclease cleavage at mismatch sites. The amount of
DNA used as substrate for Surveyor Nuclease digestion should be at least 200 ng and as much as
400 ng. All of the digested DNA should be analyzed during gel electrophoresis.
Intensity of transilluminator fluorescence signal for the intercalating dye used to stain the
DNA sample

We recommend the use of ethidium bromide (EtBr) to stain DNA, but alternative fluorescentdyes such as SYBR® Gold, can also be used with the appropriate detection system. For EtBr‐
stained DNA, a transilluminator platform emitting light at the appropriate wavelength (i.e.,
250–300 nm) must be used.
The sensitivity of the photography system used to capture the image of the gel

The sensitivity of commercial digital photography systems vary. Differences in signal intensities
captured by two different photography systems are shown in Figure 1. Additional suggestions
for photographing gels are given in Appendix B: Agarose Gel Electrophoresis and Appendix C:
Polyacrylamide Gel Electrophoresis.
Suppression of DNA end nicking

In addition to its mismatch‐specific activity, Surveyor Nuclease also has 5′ exonuclease activity
that attacks the ends of double‐stranded DNA increasing background signal during extended
incubations. This activity can be suppressed by the addition of extra MgCl2 prior to Surveyor
Nuclease digestion. See the table in Appendix A to verify reaction conditions for many
commercial PCR enzymes.


The composition of the PCR buffer

Commercially available PCR buffers vary dramatically in content and the contents are often notdefined by suppliers. A few buffers are NOT compatible with Surveyor Nuclease due to pH or
due to the presence of additives, surfactants or other proprietary ingredients. Surveyor
Nuclease reaction conditions have been defined for a large number of different PCR buffersthat improve signal intensity significantly (1.5 to 4 fold, depending upon the buffer) while
maintaining low background. These reaction conditions are included in the protocols

described in this User Guide (see Step 3—Treatment with Surveyor Nuclease and Appendix A:
Surveyor Nuclease Reaction Conditions).


Signal to Noise ratio

The signal to noise ratio is generally high enough to detect mutations present at a low
percentage of the total DNA template. It is possible to detect 1%–20% mutant DNA mixed with
Wild‐Type depending upon the particular DNA amplicon, its size, the number and type(s) of
mutation(s) and the analysis platform. Figure 1 shows the digestion products generated withhomoduplex and heteroduplex Control DNA (included in this kit) and from genomic DNA
containing normal and mutant APC genes (not provided in this kit) analyzed by agarose gelelectrophoresis. The mutation‐specific cleavage products are clearly seen as two new bands ofthe expected sizes when compared to the DNA size marker.

Examples of Results
Examples of results obtained using the Surveyor Mutation Detection Kit for Standard Gel Electrophoresis
for agarose gel electrophoresis or PAGE are shown in Figures 1 through 3 below.

Figure 1. Surveyor
S
Nucclease digestion products of ampliconss derived from two differeent genes.
Panel A and B: A 632 bp
b amplicon was
w PCR amplified from 2 µL of Controll G and Control C plasmid DNA(contained in this kit) with
w Optimase Polymerase
e. Control G/CC heterodupleex/ homodup
plex was form
med
by hybridizing equal am
mounts of Control G and Control
C
C hom
moduplex PCR
R product andd contains
homodupplexes and C/C
C and G/G mismatched heetero‐duplexees. Control G PCR product was self‐
hybridized
d to serve as a homoduple
ex control. Co
ontrol G/C hetteroduplex/h
homoduplex D
DNA (lane T) aandControl G homoduplexx DNA (lane H)
H (400 ng) we
ere digested iin PCR bufferr with 1 µL of Surveyorn was for 20 min
m at 42°C. Surveyor
S
Nucllease cleavagge at the mism
matches produces
Nuclease S. Incubation
products of 217 bp andd 416 bp. Digestion products were anallyzed by gel eelectrophoressis on a 2.5%
agarose gel
g in 1X TBE buffer.
b
Markeer DNA (100 bp
b DNA Laddeer; New Englaand BioLabs) is shown in laaneM.
Panel C and D: A 464 bp
b amplicon fromf
the humman APC genee was PCR amplified from 1100 ng of hum
mancell line SW
W‐480 DNA (mutant) and normal humaan genomic D
DNA (Promega) (wild‐type)) with Optimaase
Polymerase. The APC genegamplicons were hybrridized in equ al amounts and the normaal amplified DDNA
was self‐hhybridized to form a contro
ol. APC gene cross‐hybridiized mutant/w
wild‐type DNA (lane T) andself‐anneaaled wild‐type DNA (lane H)
H (400 ng) werew
digested with 2 µL of Surveyor Nucclease S.
Incubation was for 20 min at 42°C. Surveyor
S
Nucclease cleavess at a C>T poiint mutation tto generatecleavage productspof 118
1 bp and 34
46 bp. A SNP presentpin thee APC gene inn both mutan
nt and wild‐type
DNA is cut by Surveyorr Nuclease to produce twoo cleavage prooducts of ~2332 bp. Both mmutant and wiild‐
type DNA also contain a PCR artifacct DNA migratting at 125 bpp that was preesent before Surveyor
Nuclease treatment. DigestionD
prod
ducts were an
nalyzed by ge l electrophorresis on a 2.5%
% agarose gel in
1X TBE bu
uffer. Marker DNA (lane M)
M as above. In
n all four pan els DNA was stained with EtBr and wass
transillum
minated at 254
4 nm for captture of the ge
el image by diigital photogrraphy. In Panel A and Paneel C
the imagee was capture
ed with an Alp
phaImager™ 2200
2
Imagingg System (Alppha Innotech C
Corp.). In Pan
nel B
and D thee image was capturedcwithh an EDAS 290
0 System (Koddak).

A. Agaro
ose Gel Electrrophoresis Ussing a 2%
Agaro
ose GelB. Polyyacrylamide Gel Electrophoresis Usingg a
10%% Polyacrylam
mide Gel

Figure 2. Surveyor
S
Nucclease digestion products of ampliconss derived from three mutants and the wild
type sequuence of the E.
E coli lacZa gene.
g
The 584
4 bp ampliconns were PCR aamplified witth Optimase®
Polymerase (Transgenoomic). Mutan
nt amplicons werewannealeed either alon
ne or in comb
bination with thewild‐type amplicon. Ap
pproximately 200 ng of thee amplicon D NA were digeested by adding 0.5 µL Surrveyor
Nuclease S directly to thet PCR product mix, and incubating thhis digestion rreaction for 220 min at 42°C
C.
Digestion products were analyzed byb standard gel electrophooresis using a 2% Agarose ggel run in 1X TBE(Panel A),, or a 10% polyacrylamide gel run in 1x TBE (Panel B
B). Mutant #8 (lane 1, hommoduplex; lanee 2,
hetero/ho
omoduplex) was
w shown too have one mu
utation (a sin gle‐base deleetion); the cleeavage products
were 109 + 474 bp long. Mutant #10 (lane 3, hommoduplex; lanne 4, hetero// homoduplexx) was shownn tohave two mutations (TT>C and C>T; thet cleavage products werre 220 + 364 bp and 248 + 336 bp long)).
Mutant #13 (lane 5, homoduplex; lane 6 hetero/homoduplexx) was shownn to have threee mutations(single‐baase deletion, T>C,T
and C>T;; the cleavage
e products weere 120 + 4644 bp, 170 + 4114 bp, and 2226 +358 bp long). Lane M showssa 100 bpb DNA Laddeer (New Englaand BioLabs, Beverly, MA).

Figgure 3. Surveeyor Nucleasee digestion products of am
mplicons deriived from two mutants annd the wild tyype
seequence of th
he E. coli rpsLL gene. The 2.3 kb and 3.5 kb PCR produucts were gen
nerated usingg Maximase™
™
Po
olymerase (Trransgenomic)). Mutant amplicons were annealed eit her alone, orr in combinatiion with theapppropriate wild type ampliicon. Approximately 200 ng
n of the unpuurified ampliccon DNA were digested byy
addding 0.5 µL Surveyor
S
Nuclease S directtly to the PCR
R product mixx and incubatiing this digesttion reaction for
200 min at 42°C. Digestion prroducts were analyzed by standard gel electrophoreesis using a 1..5% agarose ggelru
un in 1X TAE. Mutant #1 (laane 1, homod
duplex; lane 2,
2 hetero/hom
moduplex) had a single mu
utation revealed
byy the presencce of two cleavage productts, 371 and 19
966 bp, respeectively. Mutaant #2 (lane 33, homodupleex;lane 4, hetero//homoduplexx) also had one mutation as shown by tw
wo cleavage p
products, 16222 and 1846 b
bp
long. Lane M shhows a 1 Kb Plus
P DNA Ladder (Life techhnologies, Incc., Carlsbad, CCA).

SStep‐by‐SStep Instrructions——Detecting Mutattions withh Surveyo
or Nucleaase
TThis section provides
pdetailed instructio
ons for the deetection of m
mutations usin
ng the Surveyor Mutation
D
Detection Kit for standard agarose or polyacrylamide gel electropphoresis.
In general, processing of saamples should be carried out
o from starrt to finish as described in this User Guiide. If
pprocessing of a sample is stoppedsbeforre completionn of all steps,, the DNA sho
ould be stored
d at –20°C un
ntiltthe next step is carried outt. Exposure of any frozen samplesto reppeated freezee‐thaw cycless should beaavoided and storages
at –200°C of PCR am
mplified DNA or Surveyor N
Nuclease digeestion produccts for extend
dedpperiods (>1 week)w
should beb avoided.

SStep 1—PPCR Amplificationn of Referrence andd Test Sam
mples
This steps
is critica
al to the succcess of the surveyor nu
uclease digesstion. Do noot proceeduuntil:
Your PCR yield is sufficientlyshiigh (>25 ng/µµL).

Your PCR product has low backkground (preferably a singgle species off the correct size).

Your PCR product is free of primer‐dimer arrtifacts.

SSeveral factorrs must be coonsidered careefully in preparing PCR am
mplified DNA tto be used ass substrate for
SSurveyor Nuclease analysiss. Primer placcement and amplifiedaprooduct qualityy and yield aree crucial tooobtaining goo
od results.
Amplicon sizeFraagment size (bp)(Primmer placemen
nt

<1000

Prim
mers should beb placed ≥500 bp outside the region ofinterest. Place prrimers so thatt resulting am
mplicon cleavaage
prod
ducts are ≥70
0 bp.

1000–4000

Prim
mers should beb placed ≥100% of the lenggth of thesubsstrate from th
he region of i nterest, ensu
uring that largge
digeestion produccts can be sepparated from undigested
subsstrate and sm
mall digestion products pro
oduce visible
bands.

Optim
mize your PCR
R conditions carefully.
The PCCR amplicon should appearr as a single sharp peak orr band of the expected sizee when analyzzed
by microfluidic DNA
A fragment annalyzer or agaarose gel elecctrophoresis. Mispriming dduring PCRamplifiication can reesult in the foormation of sp
purious DNA ffragments that produce inncreasedbackgrround during Surveyor Nucclease digestion. Use prim ers that are aat least 20 nu
ucleotides long(oligommers 25–35 nucleotides in length are prreferred), andd have a G‐C ccontent of 455–60%. If possible,
use a highh fidelity DNA
D polymeraase to minimize the introd uction of erroors that will rresult in higheer
backgrround. If afterr careful desiggn of primerss and optimizaation of PCR cconditions noon‐specific PC
CRproduccts persist, co
onsider using a hot‐start DNA polymera se, a touchdo
own PCR prottocol and/or asecond amplification with nested primers.
Amount and concentration of DNA used
Both the amount and concentration of DNA in a Surveyor Nuclease reaction mixture influence theefficiency and specificity of Surveyor Nuclease digestion. For the amount of enzyme recommended
for use in a reaction mixture (0.5–2 µL of Surveyor Nuclease S), 200–400 ng of substrate at 50 ng/µL
is optimal. If DNA product yield is <25 ng/µL, consider a second amplification with nested primers.
Alternatively concentrate the DNA by ethanol precipitation and dissolve the DNA pellet in a smaller
volume of 1X PCR buffer to increase DNA concentration.

Amplification of Homogeneous DNA Populations
In order to detect a homogeneous mutation in a test sample the PCR product must be hybridized with awild‐type reference PCR product to generate mismatches for Surveyor Nuclease cleavage. Both test sample
and wild‐type reference DNA are amplified separately with the same PCR primers. Test sample and wild‐
type reference PCR products are then mixed in a 1:1 ratio to maximize the formation of heteroduplexes
during hybridization.

Amplification of Heterogeneous DNA Populations
A DNA sample can be heterogeneous either because it is derived from a heterozygous source or because it
contains a pool of fragments derived from genetically different homozygous or heterozygous sources. Suchheterogeneous samples can be PCR amplified and hybridized without mixing them with a wild‐typereference DNA. The proportion of mutant to wild‐type DNA in the population should be above 5–10% for
analysis by gel electrophoresis. After hybridization, retain some of the hybridized PCR product as an
undigested reference (control).

Sample preparation by PCRThis kit is compatible with standard DNA isolation protocols. Before PCR amplification, make sure you haveenough high quality DNA starting material to amplify your gene of interest.
For PCR products <2500 bp in length, we recommend using a proofreading enzyme that is compatible with
SNP detection and mutation discovery applications (e.g., Optimase Polymerase; Transgenomic Inc.).
For PCR products >2500 bp in length, use a DNA polymerase blend containing Taq DNA polymerase
supplemented with a proofreading DNA polymerase (e.g., Maximase Polymerase; Transgenomic Inc.).
Perform the PCR amplification of test sample and wild‐type (reference) DNA using a high fidelity,
thermostable DNA polymerase according to the manufacturer’s instructions, and follow the steps below.
1. Verify quality and quantity of the amplified DNA by gel electrophoresis, or using a microfluidic DNA
fragment analyzer. If a single band matching the predicted amplicon size is visible in each sample
proceed to the next step. If multiple bands or primer dimers are visible, do not proceed further,but optimize your PCR reaction condition or change PCR primers.
2. Use a mass DNA ladder, such as a 100 bp DNA Ladder (New England BioLabs, Beverly, MA) as areference to estimate the concentration of the amplified DNA by visual inspection. The DNA
concentration is ideally ~50 ng/µL, but should be in the range of 25 to 80 ng/µL.
3. As long as the DNA polymerase buffer is compatible with Surveyor Nuclease, the amplified DNA
can be used without further purification. If the buffer conditions are not compatible, purify using a
PCR cleanup kit, enzymatic cleanup kit, or ethanol precipitation.

Control Experiments—Using Control G and Control C Plasmid DNA
Two plasmid DNAs, Control G and Control C, are provided in the Surveyor Mutation Detection Kit. These
two control DNAs are plasmids with inserts that differ at a single base pair. They are provided in separate
vials, each at a concentration of 5 ng/µl; forward and reverse primers needed for PCR amplification are
already combined with the plasmid templates. The sequence of the PCR product for Control G is shown
below. Control C differs from Control G because it has a Cytosine base in lieu of the Guanine base(underlined). Primer sequences are underlined at the 5′ and 3′ end of the amplicon sequence.
ACACCTGATCAAGCCTGTTCATTTGATTACCAGAGAGACTGTCATGATCCACATGGAGGGAAGGACATGTGT
GTTGCTGGAGCCATTCAAAATTTCACATCTCAGCTTGGCCATTTCCGCCATGGAACATCTGATCGTCGATATAATATGACAGAGGCTTTGTTATTTTTATCCCACTTCATGGGAGATATTCATCAGCCTATGCATGTTGGATTTACAAGTGATATGGGAGGAAACAGTATAGATTTGCGCTGGTTTCGCCACAAATCCAACCTGCACCATGTTTGGGATAGAGAGATTATTCTTACAGCTGCAGCAGATTACCATGGTAAGGATATGCACTCTCTCCTACAAGACATACAGAGGAACTTTACAGAGGGTAGTTGGTTGCAAGATGTTGAATCCTGGAAGGAATGTGATGATATCTCTACT
AGCGCCAATAAGTATGCTAAGGAGAGTATAAAACTAGCCTGTAACTGGGGTTACAAAGATGTTGAATCTGGCGAAACTCTGTCAGATAAATACTTCAACACAAGAATGCCAATTGTCATGAAACGGATAGCTCAGGGTGGAATC
CGTTTATCCATGATTTTGAACCGAGTTCTTGGAAGCTCCGCAGATCATTCTTTGGCG

PCR amplification of 2 µL of each DNA solution in a 50 µL reaction should produce >25 ng/µL of a 633 bp
PCR product. Sufficient DNA is provided to perform ten PCR reactions with each control.
Control G and Control C plasmids can be used to troubleshoot the PCR amplification, hybridization andSurveyor Nuclease digestion steps of the Surveyor Nuclease Kit.

WE STRONGLY RECOMMEND THAT FIRST TIME USERS PERFORM THE CONTROL EXPERIMENTSOUTLINED BELOW.
Successful completion of the control experiments will give the user an appreciation for: the yield and qualityof PCR product obtained with their amplification system, the amount of the user’s amplified DNA that
optimally matches the recommended amount of Surveyor Nuclease S in Appendix A, and the expectedamount and appearance of digestion products on an agarose or polyacrylamide gel.
Use Control G and Control C as follows.
1. Amplify 2 µL of Control G and 2 x 2 µL of Control C DNA in separate 50 µL reactions using a
proofreading DNA polymerase and the PCR program described in Appendix A: Preparing PCR
Products using Optimase Polymerase (Step 4) where Ta = 65°C and the 72°C extension time isappropriate for the polymerase used, e.g. 1 min for Optimase Polymerase.
2. After amplification, analyze a 2 µL aliquot of each amplified DNA and different amounts of a DNA
mass ladder [e.g., 100 bp DNA Ladder from New England BioLabs] on a 2% high resolution agarose
gel or a 10% polyacrylamide gel and compare the band intensities with those of the DNA ladder toestablish the DNA concentration. See Appendix B: Agarose Gel Electrophoresis or Appendix C:
Polyacrylamide Gel Electrophoresis for details. The yield with Optimase Polymerase is in the rangeof 25–80 ng/µL.
3. Hybridize Control G‐ and Control C‐amplified DNA in equal amounts (15 µL of each if the amplified
DNA concentrations are ≥40 ng/µL) as described in Step 2—DNA Hybridization. This produces a
population of molecules containing 50% homoduplex, 25% heteroduplex with a C/C mismatch, and
25% heteroduplex with a G/G mismatch. Also self‐anneal 30 µL of Control C homoduplex in a
separate tube.
4. Digest hybridized Control G/C and Control C homoduplex with Surveyor Nuclease S. Follow the
instructions in Step 3—Treatment with Surveyor Nuclease to identify the Surveyor Nuclease
reaction parameters, i.e. requirements for additional MgCl2 and/or enzyme, that match the PCRDNA polymerase/buffer formulation used to prepare the DNA substrate. Further optimization canbe achieved by carrying out a pilot study matching amount of Control C and Control G/C to therecommended amount of Surveyor Nuclease. An example of this for Optimase Polymerase PCR
products is shown in Table 1. Set up 6, 0.5 mL reaction tubes on ice with the indicated amounts of
PCR product in Table 1 and the amount of Surveyor Nuclease and additional MgCl2 determined as
described in Step 3. Incubate the tubes at 42°C for 60 min. Add 1/10th volume of Stop Solution.
5. Analyze the digested DNA in each reaction mixture as described in Step 4—Analysis of DNA
Fragments. Load all the samples on the gel.

Step 2—DNA Duplex Formation
In this step, sample and reference DNA are mixed and hybridized to form heteroduplexes. Make sure to
take along sample and/or reference DNA alone in separate tubes to serve as controls. The use of a heated‐
lid thermocycler is recommended—it is important to carefully follow the protocol shown here.
If your thermocycler cannot be programmed appropriately for hybridization or if it lacks a heated lid, go to
the Performing Heteroduplex Formation without a Thermocycler section below.

Performing Heteroduplex Formation using a Thermocycler
1. Mix equal amounts of test sample and reference PCR products in a 0.2 mL tube. Place reference
DNA alone in a separate 0.2 mL tube. For efficient annealing the final volume should be at least 10µL.
Note the following:

The concentration of test sample DNA and wild‐type reference DNA should be in the range
25–80 ng/µL (ideally 50 ng/µL). About 200–400 ng of hybridized DNA is recommended fortreatment with Surveyor Nuclease S, so that each tube should contain at ≥200 ng totalDNA.



Heterogeneous test sample DNA that does not require the addition of wild‐type, or reference
DNA should still undergo the following hybridization procedure to ensure the formation ofcleavable mismatches.
2. Place the tube in a thermocycler and run the following program:Temperature
95°C
95°C to 85°C
85°C
85°C to 75°C
75°C
75°C to 65°C
65°C
65°C to 55°C
55°C
55°C to 45°C
45°C
45°C to 35°C
35°C
35°C to 25°C
25°C
4°C

Time
10 minTemperature ramp(–2.0°C/s)

1 min(–0.3°C/s)
1 min(–0.3°C/s)
1 min(–0.3°C/s)
1 min(–0.3°C/s)
1 min(–0.3°C/s)
1 min(–0.3°C/s)
1 min
Hold ∞The product is now ready to be treated with Surveyor Nuclease for heteroduplex analysis. Continue with
Step 3—Treatment with Surveyor Nuclease.

Performing Heteroduplex Formation without a Thermocycler
To perform heteroduplex formation without a thermocycler:1. Mix in equal quantities of the two PCR products to generate the heteroduplex. Set up reference
DNA in a separate tube as above.
2. Incubate the mixture at 95°C for 5 min in a 1‐liter beaker filled with 800 mL of water and then allow
the water to come to <30°C.
Note:
Because of evaporation of liquid at the tube bottom and condensation under the tube lid, the volume in a
tube should be ≥20 µL so that sufficient volume is present to prevent the concentrations of constituents inthe mixture from changing substantially during the hybridization step.
3. Spin the tube contents to the bottom of the tube and mix.
The product is now ready to be treated with Surveyor Nuclease for heteroduplex analysis.
Continue with Step 3—Treatment with Surveyor Nuclease.

Step 3—Treatment with Surveyor Nuclease
In this step, the heteroduplex test sample DNA from Step 2 is cleaved by the Surveyor Nuclease, along withnecessary reference DNA and controls.
Optimized Mg2+ concentration is essential to Surveyor Nuclease function. If a different PCR DNA
polymerase is used to amplify the DNA, consult the table in Appendix A for appropriate Surveyor
Nuclease reaction conditions to digest the DNA. If the DNA polymerase you are using is not listed in the
Appendix A table, consult the instructions in Appendix A to select the appropriate reaction conditions.
Digest the hetero/homoduplex DNA experimental samples and any reference DNA in separate tubes.
Set up Surveyor Nuclease reactions for Control G and Control C duplexes as follows:
Volume Required (µL)
Tube
No.
1
2
3
4
5
6

Hybridized
Control
G/C
‐
‐
‐
6
12
18

Hybridized
Control C
6
12
18
‐
‐
‐

0.15 M
MgCl2
0.6
1.2
1.8
0.6
1.2
1.8

Surveyor
Enhancer S

1
1
1
1
1
1

Stop Solution(Add after
incubation)

Surveyor
Nuclease S

1
1
1
1
1
1

0.9
1.5
2.2
0.9
1.5
2.2

Set up Surveyor Nuclease reactions for experimental sample DNA as follows:
1. The volumes of 0.15 M MgCl2 Solution required are calculated based upon the volume (V) of the PCR
product used.
2. For each digestion, add the following components in the order shown to a nuclease‐free 0.2 mL
tube (kept on ice):
Component

AmountHybridized DNA1

200–400 ng

0.15 M MgCl2 Solution2

1/10th volume

Surveyor Enhancer S

1 µL

Surveyor Nuclease S

1 µL

1
2

DNA volume should be 8–40 µL
This additional magnesium is required even if PCR buffer also contains some magnesium

3. Mix by vortexing gently, by agitation or by aspiration/expulsion in a pipette tip using a micro‐

pipetter.
4. Incubate at 42°C for 60 min.


We recommend staring with a 60 min incubation time at 42C. In some cases, reaction time
can be reduced to 20 minutes. Increasing reaction time beyond 60 min will increase DNHA
degradation due to exonuclease activity of the Surveyor enzyme

6. Add 1/10th volume of Stop Solution and mix. Store the digestion products at –20°C if not analyzed
immediately.
Note:DNA prepared with some DNA polymerase/buffer formulations requires double the amount ofSurveyor Nuclease S (2 µL; see APPENDIX A table). The amount of Enhancer S used should be
kept at 1 µL in all cases.

To reduce the number of manipulations, MgCl2, Surveyor Enhancer S and Nuclease S can bemixed and a single pipetting can be done. This mixture should be used immediately after
preparation and should not be stored, since reducing agent in the Enhancer storage buffer willinactivate Surveyor Nuclease over time.

When a heterogeneous DNA sample is analyzed, a portion of the hybridized heterogeneous DNA
is NOT digested with Surveyor Nuclease and is run as a control in Step 4—Analysis of DNA
Fragments.

Continue with Step 4—Analysis of DNA Fragments

Step 4—Analysis of DNA Fragments
For DNA fragments in the 200–1500 bp range it is preferable to use 2% Agarose gels, or 10% polyacrylamidegels and a 1X TBE buffer system as shown in Figures 2A and 2B, respectively. Larger DNA fragments in therange of 1000–4000 bp can be analyzed more effectively using 1.5% Agarose gels and a 1X TAE buffer system
as shown in Figure 3.
Fragment size (bp)

Gel type

Buffer

200–1000

2% Agarose, or 10%
polyacrylamide

1X TBE

1000–4000

1.5% Agarose

1X TAE

Surveyor Nuclease digestion of hybridized Control G/C PCR products gives rise to two cleavage products,
217 and 416 bp in size, which are clearly distinguishable by agarose gel as shown in Figure 1. Analysis ofdifferent amounts of substrate digested with the recommended amount of Surveyor Nuclease S provides anopportunity to establish the optimal ratio of enzyme to DNA with DNA amplified with your PCR enzyme. The
optimal conditions produce the maximum amount of cleavage products while maintaining low background.
Keep in mind that PCR amplification of a plasmid template such as Control G or C will result in higher yields
of DNA product than amplification of a comparable amount of genomic DNA template. Using 5 to 10 times
more genomic DNA (50–100 ng) will give comparable yields of PCR product. This should be taken into
consideration in preparing and digesting DNA amplified from genomic DNA (Figure 1).

Appendix A: SURVEYOR Nuclease Reaction Conditions
Because amplified PCR products are hybridized and digested with SURVEYOR Nuclease directly in 1X
PCR buffer, careful consideration must be given to the 1X PCR buffer composition. Consult the table inthis section for the SURVEYOR Nuclease reaction conditions recommended for use with a number ofcommercial DNA polymerase/buffer formulations. If the DNA polymerase/buffer formulation is notincluded in the table, follow the recommendations provided below.

Surveyor Nuclease Reaction Conditions Recommended for use with Various PCR DNA
Polymerase/Buffer Formulations
EnzymeSurveyor Nuclease Sa

Additional 0.15 M MgCl2(1/10th PCR volume)

Transgenomic T‐Taq DNA Polymerase

1 µL

Yes

Transgenomic Optimase® Polymerase

1 µL

Yes

Transgenomic Maximase™ DNA
Polymerase

1 µL

Yes

AmpliTaq® DNA Polymerase

1 µL

Yes

GeneAmp® High Fidelity PCR Kit

1 µL

iProof™ High‐Fidelity DNA Polymerase + HF
Buffer

2 µL

iProof™ High‐Fidelity DNA Polymerase + GC
Buffer

2 µL

Hot Master™ Taq DNA Polymerase

1 µL

AccuPol DNA Polymerase

1 µL

Platinum® Taq DNA Polymerase

1 µL

Platinum® Taq DNA Polymerase High
Fidelity

1 µL

Platinum® Pfx DNA Polymerase

2 µL

Platinum® Pfx DNA Polymerase + PCRx
Enhancer

2 µL

NEB Taq DNA Polymerase

1 µL

Phusion™ High‐Fidelity DNA Polymerase +HF Buffer

2 µL

Phusion™ High‐Fidelity DNA Polymerase +GC Buffer

2 µL

NovaTaq™ DNA Polymerase

1 µL

KOD XL DNA Polymerase

1 µL

HotStar Taq® DNA Polymerase

1 µL

Yes

Yes

Yes
Yes
b

HotStar Taq® DNA Polymerase + Q‐Solution

Not Recommended

ProofStart™ DNA Polymerase

Not Recommendedb

ProofStart™ DNA Polymerase + Q‐Solution

Not Recommendedb

GoTaq® DNA Polymerase

2 µL

Yes

Roche Taq DNA Polymerase

1 µL

Yes

FastStart Taq DNA Polymerase

1 µL

FastStart Taq DNA Polymerase + Q Solution

1 µL

Yes

Expand High Fidelity PCR System

1 µL

Yes

PLUS
Expand High Fidelity
PCR System

1 µL

Yes

JumpStart™ Taq DNA Polymerase

1 µL

19

Enzyme

Surveyor Nuclease Sa

AccuTaq LA™ DNA Polymerase

2 µL

SureStart® Taq DNA Polymerase

1 µL

Yes

PfuTurbo® Hotstart DNA Polymerase

1 µL

Yes

PfuUltra™ Hotstart DNA Polymerase

1 µL

Yes

Takara Taq™ DNA Polymerase

1 µL

Yes

Takara Ex Taq™ DNA Polymerase

1 µL

Yes

Takara LA Taq™ DNA Polymerase

1 µL

Additional 0.15 M MgCl2(1/10th PCR volume)a

All reactions contained 1 µL Enhancer S
Not Recommended– reaction conditions could not be found that produced acceptable amounts ofdigestion products. DNA cleanup is required.
b

Read the literature associated with your polymerase to determine the concentrations of salts andother components in the 1X PCR reaction buffer before carrying out the hybridization step.
Salt (usually KCl): should be in the range of 50 to 75 mM to ensure that complete annealing ofcomplementary DNA strands takes place. If the PCR product was prepared with a low salt PCR buffer,sufficient 0.5 M KCl should be added to adjust the final KCl concentration to be within the range of 50 to
75 mM. KCl concentrations above 75 mM inhibit the SURVEYOR Nuclease.
Other 1X PCR buffer constituants: The constituents of most 1X PCR buffers support efficient digestion ofheteroduplex DNA by SURVEYOR Nuclease, including:

10 to 20 mM Tris‐HCl or Tris‐SO4 (pH 8.8 to 9.3)



1 to 3 mM MgCl2 or MgSO4



0.1% to 1% (v/v) nonionic detergent and BSA or gelatin

10 to 20 mM (NH4)2SO4



PCR additives such as DMSO (5% v/v), glycerol (10% v/v), betaine (1 M) and 1X PCRx Enhancer(Life Technologies) are acceptable at or below the concentrations listed. If any of these
additives are present in the PCR reaction mixture at higher concentrations than thoselisted, Surveyor Nuclease mismatch cutting activity will be inhibited.

If an additive is present at an inhibitory concentration, we suggest cleaning up the PCR product Using acommercial PCR clean‐up column or ethanol precipitation before the hybridization step. The DNA should
then be placed in a buffer compatible with the hybridization and Surveyor Nuclease digestion steps, suchas 10 mM Tris‐HCl (pH 8.8), 1.5 mM MgCl2, and 50 mM KCl..
If the DNA polymerase/buffer formulation is not listed in the table and the manufacturer does not reveal
the contents of the PCR buffer, you may carry out pilot Surveyor Nuclease digestion studies with Controls
G and C to establish empirically the best digestion conditions. Alternatively, Clean up the DNA andproceed as described above.
Please note that the information above is provided for guidance only and does not imply or constitutea recommendation or validation of any products listed.

20

Appendix B: Agarose Gel Electrophoresis
Appropriate preparation, electrophoresis, and photography of agarose gels are critical steps to achieving
success with Surveyor Nuclease ‐ particularly to achieving maximum detection sensitivity.

Preparing Gels
 Using Table 2 as a guide, select the percentage and type of agarose appropriate for the DNA fragment
sizes to be analyzed. For DNA fragments <1.5 kb, use a high resolution agarose that is specificallyformulated to resolve smaller DNA fragments at a lower percentage gel (see Table 2), and produces
minimal fluorescent background during transillumination and photography. For DNA fragments >1.5
kb, use a standard agarose that can be used to resolve DNA fragments in the 300 to 5000 kb range at
the appropriate percentage (see Table 2), and also produces minimal fluorescent background during
gel analysis.
Table 2. Relationship of DNA Fragment Size, Agarose Type and Gel Concentration, and Running Buffer
Agarose (%)
DNA Fragment Size (kb)
Buffer2a<1.5

TBE or TAE

1.5b

1.5–2.5

TAE or TBE

1.5b

2.5–5

TAE

a

Specifically formulated high‐resolution agarose for visualizing small fragments
Multi‐purpose agarose formulated for separation of larger fragmentsb Select the appropriate buffer to cast and run the gel. 1X TAE buffer [40 mM Tris‐acetate (pH 8.3), 1
mM EDTA] is generally used for resolution of fragments >0.5 kb. For smaller fragments, particularly
when analyzing digestion products in the 100 to 300 bp range, 1X TBE [89 mM Tris‐borate (pH 8.3), 1
mM EDTA] should be used. 1X TBE helps to reduce diffusion of small DNA fragments during
electrophoresis, giving a sharper, more focused band.
 To visualize DNA at any time during an electrophoresis run, cast the gel in a UV‐transparent gel tray
and incorporate a DNA intercalating dye into the gel‐casting buffer. Inclusion of dye in the gel runningbuffer is not necessary. We recommend the use of EtBr at 0.1–0.5 µg/mL in the gel. Within thisconcentration range, higher concentrations of EtBr tend to give more intense staining of DNA bands
at the cost of higher fluorescence background in the gel lanes.
 Before bringing the agarose into solution by boiling in a microwave oven, hydration of the solid
agarose by soaking in buffer for 20–30 min will reduce melting time, foaming, and trapping of air
bubbles. Weigh the container before and after bringing the agarose into solution and restore any
liquid lost during heating with water. Let the agarose cool to 55–65°C before pouring the gel.
 Use a comb <1 mm thick to help sharpen bands. Make the gel only as thick as necessary toaccommodate in the wells the maximum volume of sample loaded.

Running Gels
21

To analyze Surveyor Nuclease digestion products by agarose gel electrophoresis:
1. Add 1/6th volume of a 6 X loading dye buffer [10 mM Tris‐HCl (pH 8.0), 10 mM EDTA (pH 8.0),
50% (w/v) sucrose, 0.15% (w/v) bromophenol blue] or your own loading dye buffer of choice toeach Surveyor Nuclease reaction mixture and mix the 0.2 mL tube with the Surveyor Nuclease
digestion.
2. For each digestion/loading dye mixture load all the mixture into the well of an appropriate
percentage agarose gel cast and run in the appropriate running buffer (see Appendix B: Agarose
Gel Electrophoresis). Also load a DNA ladder as a size reference marker in one of the adjacentwells. Run the gel at 5 V/cm until the bromophenol blue has migrated 2/3 of the length of thegel.
3. Illuminate the gel using a UV transilluminator (250 to 300 nm) to visualize the bands and take aphotograph.
Note:
Small Surveyor Nuclease digestion products (70–150 bp) are more easily detected early during a gelelectrophoresis run, particularly when larger substrates are analyzed. We recommend that theelectrophoresis be stopped after the dye has migrated about 1/3 the length of the gel for the purpose ofphotographing the gel early in the run. Then continue electrophoresis until the dye has run 2/3 of thelength of the gel and photograph the gel a second time (See Figure 2)
 Carry out electrophoresis at 5–10 V/cm where distance in cm is measured between electrodes.
 Small SURVEYOR Nuclease digestion products (<100 bp) are more easily detected early during a gelelectrophoresis run, particularly when larger substrates are analyzed. We recommend that theelectrophoresis be stopped after the bromophenol blue has migrated about 1/3 the length of the gelfor the purpose of photographing the gel early in the run. Then continue electrophoresis until thebromophenol blue has run 2/3 of the length of the gel and photograph the gel a second time.

Photographing Gels
The sensitivity of DNA fragment detection in agarose gels varies both with the wavelength of the UVtransilluminator used and the sensitivity of the photography system. Most transilluminators allow
selection for illumination of DNA at several wavelengths. Use illumination at the shortest wavelength
possible to increase signal intensity.

22Appendix C: Polyacrylamide Gel Electrophoresis
Appropriate electrophoresis and photography of polyacrylamide gels are critical steps to achieving
success with SURVEYOR Nuclease ‐ particularly to achieving maximum detection sensitivity.
Preparing Gels
We use Bio‐Rad (Hercules, CA) precast 10% polyacrylamide gels with 12 wells cast and run in 1X TBE
buffer. Up to 20 µL can be accommodated in each well. Alternatively, Novex 10% polyacrylamide TBE
gels (Life Technologies, Carlsbad, CA) with 12 wells can be used.
To analyze Surveyor Nuclease digestion products by PAGE:
1. Add 1/6th volume of a 6 X loading dye buffer [10 mM Tris‐HCl (pH 8.0), 10 mM EDTA (pH 8.0),
50% (w/v) sucrose, 0.15% (w/v) bromophenol blue] or your own loading dye buffer of choice toeach Surveyor Nuclease reaction mixture and mix the 0.2 mL tube with the Surveyor Nuclease
digestion.
2. For each digestion/loading dye mixture load all the mixture into the well of a 10%
polyacrylamide gel cast and run in 1X TBE. Also load a DNA ladder as a size reference marker in
one of the adjacent wells. Run the gel at constant voltage at 125 volts until the bromophenol
blue has just migrated off the gel.
3. Stain the gel in a solution of 0.5 µg/mL EtBr in 1X TBE for 20 min. Wash the gel in water for 20
min.
4. Illuminate the gel using a UV transilluminator (250–300 nm) to visualize the bands and take aphotograph.

Photographing Gels
 Stain the gel for 20 min in 1X TBE containing 0.5 µg/mL EtBr. Wash the gel in water for 20 min.
The sensitivity of DNA fragment detection in polyacrylamide gels varies both with the wavelength of the
UV transilluminator used and the sensitivity of the photography system. Most transilluminators allow
selection for illumination of DNA at several wavelengths. Use illumination at the shortest wavelength
possible to increase signal intensity.

23Appendix D: Troubleshooting
Effective use of the SURVEYOR Mutation Detection Kit depends upon successful completion of anumber of steps. One of the most critical is PCR amplification that must result in the production of
specific, uniform‐sized DNAs in sufficient quantity to be detected after hybridization and cleavage. Also
critical is matching the amount of DNA and SURVEYOR Nuclease used. If you are a first‐time user, you
should process the control DNAs provided through all the steps as described in Control Experiments –Using Control G and Control C Plasmid DNA.
The Control DNAs should be used also to troubleshoot various steps in the procedure.
This appendix section covers a list of issues that you might encounter when using the SURVEYOR
Mutation Detection Kit and how to resolve them.

Problem 1—Low PCR yield or no PCR product
POSSIBLE CAUSE
Not enough template
and/or too few cycles
Suboptimal PCRparameters

SOLUTION
Increase the template concentration and/or add more
PCR cycles.
Do one or more of the following: Decrease the annealing temperature inincrements of 2°C.
 Increase the extension time. For Optimase
Polymerase, use 30 sec per 250 bp. For
Maximase Polymerase, use 1 min per 1 kb.
 Adjust the Mg2+ concentration

Suboptimal DNA
polymerase for target

Use a “hot‐start” PCR DNA polymerase.
Increase the amount of DNA polymerase.

Problem 2—Multiple PCR products
POSSIBLE CAUSE
Poor primer design
Annealing temperature
too low
Extension time too long

Cycle number too highSuboptimal PCR
conditions

SOLUTION
Redesign primers to improve specificity, Tm, and GC
content.
Increase the annealing temperature in increments of 2°C.
Reduce the extension time. Refer to manufacturer
instructions on extension times

Reduce cycle number in increments of 2.
Use “hot‐start” PCR and/or touchdown PCR or
perform nested PCR.

24

Problem 3—No cleavage products observed upon analysis after Surveyor Nucleasetreatment of known heteroduplex
POSSIBLE CAUSE
Proportion of mismatchtarget too low
Cleavage site too close to
PCR product end
Inactive SURVEYOR
Nuclease
Too little enzyme
Too little substrate
Incompatible 1X PCR
buffer

SOLUTION
Mix equal amounts of test and reference DNA before
annealing.
Redesign the primer set to move the target site awayfrom ends.
Perform the Control reaction to verify enzyme
performance.
Increase the amount of SURVEYOR Nuclease 2‐fold andrepeat digestion.
Concentrate the PCR products by ethanol
precipitation before annealing.
Consult Appendix A for suggested courses of action

Problem 4—High background after SURVEYOR Nuclease treatment
POSSIBLE CAUSE
Suboptimal hybridization
step

SOLUTION
Do the following:
1. Make sure the DNA concentration is in therange of >25 ng/µL to <50 ng/µL.
2. Repeat the hybridization step, taking care tocool the annealing mixture slowly.
3. Add 1X PCR reaction buffer to precipitatedproducts before annealing.
4. Use sufficient sample volume (>20 µL) duringhybridization in a water bath.
5. Add 1/10 volume 0.5 M KCl to PCR productcontained in low salt 1X PCR reaction buffer

Errors introduced by
PCR enzyme
Incompatible 1X PCR
bufferToo much SURVEYOR
Nuclease
DNA amount too low

Use a high fidelity PCR enzyme, such as Optimase
Polymerase.
Consult Appendix A for suggested courses of action

Nonspecific PCR
products
Enhancer S has lost
activity

Reduce the SURVEYOR Nuclease 2‐fold and repeat
digestion.
Increase the DNA amount to at least 200 ng of substrate
per 1 µL of SURVEYOR Nuclease S used.
Optimize the PCR parameters to increase specificity.
Always use an appropriate substrate as a control toidentify background.
Increase the amount of Enhancer S 2‐fold and repeat
digestion.

25

Can’t fix your problem?
Contact techsupport@idtdna.com for technical help and advice.
Be prepared to provide the following information to assist with troubleshooting Surveyor reactions:

PCR Reaction Condition specificsoSource of template DNA (isolation method) for reference and mismatchoSpecific PCR buffer and enzyme usedoCycling conditions (temperatures and cycle numbers)o

Gel image of PCR product before nuclease digest, including Controls C and Go

DNA concentration from PCR reaction

Surveyor reaction Conditions usedoAmount of duplex, enhancer and nuclease addedoLength of Surveyor treatmentoTemperature for Surveyor treatment (thermocycler or heating block?)Gel Image after nuclease treatment alongside Control C or G alone and C/G Heteroduplex

Application used for (CRISPR/TALEN/ZFN, mutation screening, SNP detection etc)26

Appendix E: Specific examples of use of Surveyor Nuclease
Surveyor Nuclease has been used to identify and analyze mutations in a variety of organisms and cell types.
Surveyor Mutation Detection Kits also provide an easy method for confirming genome modifications using CRISPR
and other methods. A short list of examples of the variety of applications of Surveyor Nuclease includes:



CRISPR genome modification [5‐9]germline mutations in human genes:o

ATRX for X‐linked mental retardation[10]oABCC6 associated with pseudoxanthoma elasticum [11]o

HBB gene linked to β‐thalassemia [12]

genes involved in uracil catabolism [13, 14]

mtDNA and nuclear gene mutations associated with respiratory chain defects [15‐18]

mutations associated with kidney disease [19‐21]

somatic mutations in:o

EGFR gene in human tumors [22‐27]oJAK2 tyrosine kinase gene in patients with myeloproliferative disorders [28, 29]oa variety of genes in patients undergoing radiotherapy[30]op53 gene in squamous‐cell carcinomas[31] and hematological malignancies [32]o

KIT tyrosine kinase receptor gene in various malignancies [33, 34]oPKC412 tyrosine kinase receptor in mast cell leukemia [35]o

LKB1 tumor suppressor in lung cancer [36]o

VHL gene in renal tumors [37]ohCDC4 gene in patients with AML [38]mutations in drug‐resistant genes of Mycobacterium tuberculosis [39, 40] and in Group II introns ofbacterial rRNA genes[41]

induced point mutations in barley [42, 43] and error‐free clones generated from a plant cDNA library by
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