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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5074
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pubmed:dateCreated |
1992-10-6
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pubmed:abstractText |
The crystal structure of calcium-bound calmodulin (Ca(2+)-CaM) bound to a peptide analog of the CaM-binding region of chicken smooth muscle myosin light chain kinase has been determined and refined to a resolution of 2.4 angstroms (A). The structure is compact and has the shape of an ellipsoid (axial ratio approximately 2:1). The bound CaM forms a tunnel diagonal to its long axis that engulfs the helical peptide, with the hydrophobic regions of CaM melded into a single area that closely covers the hydrophobic side of the peptide. There is a remarkably high pseudo-twofold symmetry between the closely associated domains. The central helix of the native CaM is unwound and expanded into a bend between residues 73 and 77. About 185 contacts (less than 4 A) are formed between CaM and the peptide, with van der Waals contacts comprising approximately 80% of this total.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
28
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pubmed:volume |
257
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1251-5
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:1519061-Amino Acid Sequence,
pubmed-meshheading:1519061-Calmodulin,
pubmed-meshheading:1519061-Crystallography,
pubmed-meshheading:1519061-Models, Molecular,
pubmed-meshheading:1519061-Molecular Sequence Data,
pubmed-meshheading:1519061-Myosin-Light-Chain Kinase,
pubmed-meshheading:1519061-Protein Conformation
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pubmed:year |
1992
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pubmed:articleTitle |
Target enzyme recognition by calmodulin: 2.4 A structure of a calmodulin-peptide complex.
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pubmed:affiliation |
Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX 77030.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|