Rapid Purification of Overexpressed T4 DNA Polymerase
- 1 January 1989
- journal article
- research article
- Published by Taylor & Francis in Preparative Biochemistry
- Vol. 19 (4), 329-340
- https://doi.org/10.1080/10826068908544921
Abstract
A method for purifying T4 DNA polymerase from cells harboring overexpression plasmids is described. T4 DNA polymerase is precipitated from induced, lysed cells with polyethyleneimine, then extracted and fractionated further with (NH4)2SO4 before chromatography on a column of single-stranded DNA cellulose. This procedure can be completed in three days and consistently provides enzyme preparations which are at least 98% pure. When necessary, one further chromatography step provides T4 DNA polymerase suitable for recombinant DNA applications.This publication has 16 references indexed in Scilit:
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