Structure of the operator-binding domain of bacteriophage lambda repressor: implications for DNA recognition and gene regulation.
Structure of the operator-binding domain of bacteriophage lambda repressor: implications for DNA recognition and gene regulation.
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噬菌体 lambda 阻遏物操纵子结合域的结构:对 DNA 识别和基因调控的影响。
DOI:
10.1101/sqb.1983.047.01.051
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发表时间:
1983
期刊:
影响因子:
--
通讯作者:
Pabo,CO
中科院分区:
文献类型:
--
作者:
Lewis,M;Jeffrey,A;Wang,J;Ladner,R;Ptashne,M;Pabo,CO
To understand the structural basis for sequence-specific recognition of DNA and the molecular basis of gene regulation, we have undertaken a crystallographic study of the repressor from bacteriophage k. The)~ repressor binds to two operator regions (OL and OR) in the bacteriophage DNA, thereby preventing transcription of other bacteriophage genes while stimulating transcription of its own gene (for recent review, see Ptashne et al. 1980; Johnson et al. 1981). Repressor dimers bind to three sites within each of the operator regions (OL and OR). Each binding site contains 17 bp, and the sequence of each site has an approximate twofold rotational symmetry.The)~ repressor (monomer mw= 26,228) has two domains, and these domains may be separated by cleaving the repressor with papain (Pabo et al. 1979). Papain cleavage generates an aminoterminal fragment that contains residues 1-92 of the repressor. This fragment binds specifically to the h operator site and makes the same operator contacts that the intact repressor makes (Sauer et al. 1979). Like the intact repressor, this fragment is able to mediate both positive and negative control of transcription. The carboxyterminal domain allows repressor to form stable dimers. Since each dimer has two operator-binding sites, repressor dimers bind to the operator more tightly than do the isolated aminoterminal fragments.
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影响因子:
5.6
作者:
Feiss,M;Frackman,S;Sippy,J
通讯作者:
Sippy,J
DOI:
10.1002/j.1460-2075.1982.tb01244.x
发表时间:
1982
期刊:
The EMBO journal
影响因子:
--
作者:
Nakamura,K;Inouye,M
通讯作者:
Inouye,M
影响因子:
5.6
作者:
A. Oppenheim;S. Gottesman;M. Gottesman
通讯作者:
M. Gottesman
影响因子:
14.9
作者:
Friden,P;Tsui,P;Okamoto,K;Freundlich,M
通讯作者:
Freundlich,M
DOI:
10.1016/s0021-9258(19)52537-6
发表时间:
1981
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
H. Nash;C. Robertson
通讯作者:
C. Robertson