RecA homology search is promoted by mechanical stress along the scanned duplex DNA.
RecA homology search is promoted by mechanical stress along the scanned duplex DNA.
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DOI:
10.1093/nar/gkr855
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发表时间:
2012-02
影响因子:
14.9
通讯作者:
Prentiss M
中科院分区:
文献类型:
--
作者:
Danilowicz C;Feinstein E;Conover A;Coljee VW;Vlassakis J;Chan YL;Bishop DK;Prentiss M
A RecA–single-stranded DNA (RecA–ssDNA) filament searches a genome for sequence homology by rapidly binding and unbinding double-stranded DNA (dsDNA) until homology is found. We demonstrate that pulling on the opposite termini (3′ and 5′) of one of the two DNA strands in a dsDNA molecule stabilizes the normally unstable binding of that dsDNA to non-homologous RecA–ssDNA filaments, whereas pulling on the two 3′, the two 5′, or all four termini does not. We propose that the ‘outgoing’ strand in the dsDNA is extended by strong DNA–protein contacts, whereas the ‘complementary’ strand is extended by the tension on the base pairs that connect the ‘complementary’ strand to the ‘outgoing’ strand. The stress resulting from different levels of tension on its constitutive strands causes rapid dsDNA unbinding unless sufficient homology is present.
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影响因子:
5.6
作者:
ROULD, E;MUNIYAPPA, K;RADDING, CM
通讯作者:
RADDING, CM
DOI:
10.1073/pnas.94.22.11935
发表时间:
1997-10-28
影响因子:
11.1
作者:
EssevazRoulet, B;Bockelmann, U;Heslot, F
通讯作者:
Heslot, F
DOI:
10.1073/pnas.94.22.11863
发表时间:
1997-10-28
影响因子:
11.1
作者:
Bazemore, LR;FoltaStogniew, E;Radding, CM
通讯作者:
Radding, CM
DOI:
10.1073/pnas.87.1.21
发表时间:
1990-01-01
影响因子:
11.1
作者:
MENETSKI, JP;BEAR, DG;KOWALCZYKOWSKI, SC
通讯作者:
KOWALCZYKOWSKI, SC
影响因子:
5.6
作者:
ROSSELLI, W;STASIAK, A
通讯作者:
STASIAK, A