Control of a multisubunit DNA motor by a thermoresponsive polymer switch

被引:50
作者
Pennadam, SS
Lavigne, MD
Dutta, CF
Firman, K
Mernagh, D
Górecki, DC
Alexander, C
机构
[1] Univ Portsmouth, Inst Biomed & Biomol Sci, Sch Pharm & Biomed Sci, Portsmouth PO1 2DT, Hants, England
[2] Univ Portsmouth, Inst Biomed & Biomol Sci, Sch Biol Sci, Portsmouth PO1 2DT, Hants, England
关键词
D O I
10.1021/ja045275j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The conjugation of thermoresponsive polymers to multisubunit, multifunctional hybrid type 1 DNA restriction-modification (R-M) enzymes enables temperature-controlled switching" of DNA methylation by the conjugate. Polymers attached to the enzyme at a subunit distal to the methylation subunit allow retention of DNA recognition and ATPase activity while controlling methylation of plasmid DNA. This regulation of enzyme activity arises from the coil-globule phase transitions of the polymer as shown in light scattering and gel retardation assays. Copyright © 2004 American Chemical Society."
引用
收藏
页码:13208 / 13209
页数:2
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