Patent ID: 9650671
Date: 2017-05-16
CPC Classifications: C12Q

Claim:
1. A method for performing single molecule sequencing having a pulse width within a desired range comprising: providing a composition comprising: a modified recombinant phi-29 type DNA polymerase enzyme having at least 80% sequence similarity to SEQ ID NO: 1, a primer, a template nucleic acid, and a plurality of labeled nucleotide analogs, wherein the composition comprises Li+ at a concentration of from about 0.05 mM to about 40 mM; and observing the association of the labeled nucleotide analogs with a complex of the polymerase, primer, and template nucleic acid over time to determine a sequence of the template nucleic acid, wherein the concentration of Li+ is selected such that the single molecule sequencing reaction has a median pulse width from about 10 msec to about 400 msec.