STRUCTURE OF NF-KAPPA-B P50 HOMODIMER BOUND TO A KAPPA-B SITE
STRUCTURE OF NF-KAPPA-B P50 HOMODIMER BOUND TO A KAPPA-B SITE
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DOI:
10.1038/373303a0
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发表时间:
1995-01-26
期刊:
影响因子:
64.8
通讯作者:
SIGLER, PB
中科院分区:
文献类型:
--
作者:
GHOSH, G;VANDUYNE, G;SIGLER, PB
The 2.3-Angstrom crystal structure of the transcription factor NF-kappa B p50 homodimer bound to a palindromic kappa B site reveals that the Rel homology region folds into two distinct domains, similar to those in the immunoglobulin superfamily. The p50 dimer envelopes an undistorted B-DNA helix, making specific contacts along the 10-base-pair kappa B recognition site mainly through loops connecting secondary structure elements in both domains. The carboxy-terminal domains form a dimerization interface between beta-sheets using residues that are strongly conserved in the Rel family.