Lonza Rockland, Inc.
www.lonza.com
scientific.support@lonza.com
Scientific Support: 800-521-0390
Customer Service: 800-638-8174
Document # 18136-0709-06
Rockland, ME 04841 USA

Lonza DNA Ladders
Introduction
Lonza DNA Ladders are precision manufactured to provide
rapid and easy size determination of your DNA samples. Eachband has an ideal 50% G-C content for precise sizing andsharp resolution. Our ladders are free from contaminatingplasmid DNA so they have minimal background.

Description
50330 - 20 bp DNA Ladder: 25 fragments from 20 bp to 500
bp, in 20 bp increments. The band at 200 bp stains brighter toaid identification.
Supplied at 200 ng/µl; 150 µl volume: 150 applications.
50320 - 20 bp Extended Range DNA Ladder: 50 fragmentsfrom 20 bp to 1,000 bp, in 20 bp increments. Bands at 200 bp
and 500 bp stain brighter to aid identification.
Supplied at 200 ng/µl; 150 µl volume: 100 applications.
50321 - 100 bp DNA Ladder: 10 fragments from 100 bp to1,000 bp, in 100 bp increments.
Supplied at 100 ng/µl; 160 µl volume: 100 applications.
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50322 - 100 bp Extended Range DNA Ladder: 30 fragmentsfrom 100 bp to 3,000 bp, in 100 bp increments. Bands at 1,000
bp and 3,000 bp stain brighter to aid identification.
Supplied at 200 ng/µl; 150 µl volume: 100 applications.
50323 - 500 bp DNA Ladder: 16 fragments from 500 bp to8,000 bp, in 500 bp increments. The band at 5 kb stains
brighter to aid identification.
Supplied at 200 ng/µl; 300 µl volume: 200 applications.

Contents
Lonza DNA Ladders are supplied at various concentrations inTE Buffer and each includes a vial of 6X Sample Loading
Buffer: 1 ml total volume 15% w/v Ficoll 400, 0.06% w/v
Bromophenol blue, 0.06% w/v Xylene cyanol FF, 30 mM
EDTA.

Storage
Store at 2°C-8°C. Contact Scientific Support for shelf life
information.
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Use with Lonza MetaPhor NuSieve 3:1 and™
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NuSieve GTG Agarose

Use with Lonza SeaKem LE, SeaKem GTG™
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SeaPlaque and SeaPlaque GTG Agarose

20 bp Ladder

100 bp Ext Ladder

20 bp Ext Ladder

100 bp Ladder

500 bp Ladder— 1,000 bp— 500 bp
— 400 bp

— 500 bp
— 400 bp

— 300 bp

— 300 bp

— 200 bp

— 200 bp

— 140 bp

— 140 bp— 100 bp— 100 bp

— 60 bp— 60 bp— 1,000 bp— 800 bp
— 600 bp

— 3 kb— 400 bp

— 2.5 kb
— 2 kb
— 1.5 kb

— 20 bp— 2.5 kb
— 2 kb
— 1.5 kb

— 200 bp

— 1 kb— 800 bp

— 1 kb— 600 bp— 100 bp

— 20 bp— 8 kb— 5 kb
— 3.5 kb

— 400 bp
— 200 bp— 100 bp

— 500 bp

Use of Modified Loading Buffer
The 6X gel loading buffer produces a final 5 mM EDTA
concentration, and can be substituted for the 20 mM EDTA
used to stop restriction digests, PCR, and other reactions
before electrophoresis.

Amounts to Load
For a 15 µl total load volumeDescription
Ladder

6X Loading DistilledBuffer
Water
20 bp DNA Ladder
1.0 µl
2.5 µl11.5 µl
20 bp Ext DNA Ladder
1.5 µl
2.5 µl11.0 µl
100 bp DNA Ladder
1.6 µl
2.5 µl10.9 µl
100 bp Ext DNA Ladder
1.5 µl
2.5 µl11.0 µl
500 bp DNA Ladder
1.5 µl
2.5 µl11.0 µl
Adjustments may be made for different staining methodology,
well sizes and individual preferences. For complete band
resolution, run the DNA Ladders the full length of the gel.
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Lonza also offers these ladders in a SimplyLoad DNA Ladderformat, premixed with loading dye and ready-to-load on yourgels. Contact Scientific Support for more information.

Related Products®

GelStar Nucleic Acid Gel Stain™
Latitude HT Precast Agarose Gels™
Latitude Precast Agarose Midigels™
PAGEr Gold TBE Precast Gels™
Reliant Gel System
Lonza Agarose

For Research Use Only.
Manufactured for Lonza Group or its subsidiaries.
GelStar and SeaKem are trademarks of FMC Corporation.
GelStar is covered by U.S. patent 5,436,134 and is licensed
from Molecular Probes, Inc. Other U.S. and foreign patents
pending. Ficoll is a trademark of GE Healthcare Bio-Sciences
AB, Ltd.. All other trademarks herein are marks of the Lonza
Group or its affiliates.
 2009 Lonza Rockland, Inc.
All rights reserved.