| Literature DB >> 3903514 |
R W Schevitz, Z Otwinowski, A Joachimiak, C L Lawson, P B Sigler.
Abstract
The crystal structure of the Escherichia coli trp repressor has been solved to atomic resolution. The dimeric protein has a remarkable subunit interface in which five of each subunit's six helices are interlinked. The binding of L-tryptophan activates the aporepressor indirectly by fixing the orientation of the second helix of the helix-turn-helix motif and by moulding the details of the repressor's structure near the DNA binding surface.Entities:
Mesh:
Substances:
Year: 1985 PMID: 3903514 DOI: 10.1038/317782a0
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962