DNA binding by GATA transcription factor suggests mechanisms of DNA looping and long-range gene regulation.
DNA binding by GATA transcription factor suggests mechanisms of DNA looping and long-range gene regulation.
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DOI:
10.1016/j.celrep.2012.10.012
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发表时间:
2012-11-29
期刊:
影响因子:
8.8
通讯作者:
Chen L
中科院分区:
文献类型:
--
作者:
Chen Y;Bates DL;Dey R;Chen PH;Machado AC;Laird-Offringa IA;Rohs R;Chen L
GATA transcription factors regulate transcription during development and differentiation by recognizing distinct GATA sites with a tandem of two conserved zinc fingers and by mediating long-range DNA looping. However, the molecular basis of these processes is not well understood yet. Here, we determined three crystal structures of the full DNA binding domain (DBD) of human GATA3 protein, which contains both zinc fingers, in complex with different DNA sites. In one structure, both zinc fingers wrap around a palindromic GATA site, cooperatively enhancing the binding affinity and kinetic stability. Strikingly, in the other two structures, the two fingers of GATA DBD bind GATA sites on different DNA molecules, thus bridging two separate DNA fragments, which is confirmed in solution by an in-gel FRET analysis. These findings not only provide new insights into the structure and function of GATA proteins, but also shed light on the molecular basis of long-range gene regulation.
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影响因子:
46.9
作者:
通讯作者:
--
影响因子:
16
作者:
Fujiwara T;O'Geen H;Keles S;Blahnik K;Linnemann AK;Kang YA;Choi K;Farnham PJ;Bresnick EH
通讯作者:
Bresnick EH
影响因子:
5.3
作者:
MERIKA, M;ORKIN, SH
通讯作者:
ORKIN, SH
DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL
DOI:
10.1039/9781849735056-00053
发表时间:
2012-01-01
期刊:
INNOVATIONS IN BIOMOLECULAR MODELING AND SIMULATIONS, VOL 2
影响因子:
--
作者:
Harris, Robert C.;Mackoy, Travis;Fenley, Marcia Oliveira
通讯作者:
Fenley, Marcia Oliveira