Document Detail


Crystallization of and preliminary X-ray diffraction data for TET-repressor and the TET-repressor-tetracycline complex.
MedLine Citation:
PMID:  6527388     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The TET-repressor encoded by the transposon Tn10 has been crystallized along with the repressor-tetracycline complex. Both crystals belong to the space group P43212 (or P41212) with cell dimensions a = b = 74.3(1) A, c = 94.2(2) A and a = b = 73.3(1) A, c = 94.6(2) A for the free and complexed repressor, respectively. There is one molecule of molecular weight 23,000 per asymmetric unit, and the biologically active dimer therefore consists of two identically formed subunits which are related by a crystallographic 2-fold axis. This isomorphism of TET-repressor and its tetracycline complex suggests that only minor, subtle changes in structure trigger binding to or release of the operator. The crystals of the native protein permit X-ray data collection to 3.2 A and those of the complexed repressor to 2.8 A.
Authors:
H E Parge; M Schneider; V Hahn; W Saenger; L Altschmied; W Hillen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of molecular biology     Volume:  180     ISSN:  0022-2836     ISO Abbreviation:  J. Mol. Biol.     Publication Date:  1984 Dec 
Date Detail:
Created Date:  1985-04-18     Completed Date:  1985-04-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985088R     Medline TA:  J Mol Biol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1189-91     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Crystallization
Macromolecular Substances
Repressor Proteins*
Tetracycline*
Transcription Factors*
X-Ray Diffraction
Chemical
Reg. No./Substance:
0/Macromolecular Substances; 0/Repressor Proteins; 0/Transcription Factors; 0/tetracycline resistance-encoding transposon repressor protein; 60-54-8/Tetracycline

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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