Transient non-specific DNA binding dominates the target search of bacterial DNA-binding proteins
Transient non-specific DNA binding dominates the target search of bacterial DNA-binding proteins
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瞬时非特异性 DNA 结合主导细菌 DNA 结合蛋白的靶标搜索
DOI:
10.1101/2020.08.13.249771
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Stracy M
中科院分区:
文献类型:
--
作者:
Stracy M
Despite their diverse biochemical characteristics and functions, all DNA-binding proteins share the ability to accurately locate their target sites among the vast excess of non-target DNA. Toward identifying universal mechanisms of the target search, we used single-molecule tracking of 11 diverse DNA-binding proteins in livingEscherichia coli. The mobility of these proteins during the target search was dictated by DNA interactions rather than by their molecular weights. By generating cells devoid of all chromosomal DNA, we discovered that the nucleoid is not a physical barrier for protein diffusion but significantly slows the motion of DNA-binding proteins through frequent short-lived DNA interactions. The representative DNA-binding proteins (irrespective of their size, concentration, or function) spend the majority (58%–99%) of their search time bound to DNA and occupy as much as ∼30% of the chromosomal DNA at any time. Chromosome crowding likely has important implications for the function of all DNA-binding proteins.
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影响因子:
8.8
作者:
P. Zawadzki;Mathew Stracy;Katarzyna Ginda;K. Zawadzka;Christian Lesterlin;A. Kapanidis;D. Sherratt
通讯作者:
D. Sherratt
DOI:
10.1103/physreve.85.061916
发表时间:
2012-06
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Michalet X;Berglund AJ
通讯作者:
Berglund AJ
DOI:
10.1073/pnas.74.10.4228
发表时间:
1977-01-01
影响因子:
11.1
作者:
KAOHUANG, Y;REVZIN, A;VONHIPPEL, PH
通讯作者:
VONHIPPEL, PH
DOI:
10.1073/pnas.96.9.4971
发表时间:
1999-04-27
影响因子:
11.1
作者:
Raskin, DM;de Boer, PAJ
通讯作者:
de Boer, PAJ
影响因子:
3.4
作者:
Stylianidou, Stella;Kuwada, Nathan J.;Wiggins, Paul A.
通讯作者:
Wiggins, Paul A.