Conformation of DNA-DNA polymerase I complex observed by scanning tunneling microscopy.

Abstract:

:The conformation of a complex of a 41 mer/31 mer DNA fragment and the Klenow fragment of DNA polymerase I of Escherichia coli was studied by scanning tunnelling microscopy (STM). The results shows that near two turns of double helix of this DNA fragment was outside of enzyme while another part containing more than one turn of helix and 10 nucleotides single strand was combined with enzyme. The dimension and shape of DNA polymerase I (KF) in complex were different from that of free enzyme. The conformation of DNA-DNA polymerase I (KF) complex and the application of STM in studying structure of complex of DNA polymerase with DNA were discussed.

journal_name

J Biomol Struct Dyn

authors

Lu CD,Li MQ,Qui MY,Yao XW,Xu YL,Gu MM,Hu J

doi

10.1080/07391102.1991.10507909

subject

Has Abstract

pub_date

1991-10-01 00:00:00

pages

233-8

issue

2

eissn

0739-1102

issn

1538-0254

journal_volume

9

pub_type

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