Modified thermostable DNA polymerase

Details Modified thermostable DNA polymerase Modified thermostable DNA polymerase

2001-05-10

2008-09-09

Hutson, Richard G (Department: 1652)

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Transferase other than ribonuclease

C435S183000, C435S091100

Reexamination Certificate

active

07422882

ABSTRACT:
An object of the present invention is to provide a thermostable DNA polymerase with enhanced amplification efficiency and/or improved fidelity in polymerase chain reaction (PCR), and provide a process for production thereof. More specifically, the present invention provides thermostable DNA polymerase wherein in the DX1EX2X3X4H sequence (D: aspartic acid, E: glutamic acid, H: histidine, X1, X2, X3and X4: any amino acid) consisting of DX1E sequence within the EXO I region and a four amino acid length peptide adjacent to said glutamic acid(E) of thermostable DNA polymerase having 3′-5′ exonuclease activity, histidine(H) has been replaced by another amino acid.

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