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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4689
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pubmed:dateCreated |
1985-3-21
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pubmed:abstractText |
The x-ray structure of chicken skeletal muscle troponin C (TnC), the Ca2+-binding subunit of the troponin complex, shows that the protein is about 70 angstroms long with an unusual dumbbell shape. The carboxyl and amino domains are separated by a single long alpha helix of about nine turns. Only the two high-affinity Ca2+-Mg2+ sites of the COOH-domain are occupied by metal ions resulting in conformational differences between the COOH- and NH2-domains. These differences are probably important in the triggering of muscle contraction by TnC. Also the structure of TnC is relevant in understanding the function of other calcium-regulated proteins, in particular that of calmodulin because of its strong similarity in amino acid sequence.
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pubmed:grant | |
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 |
Feb
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
227
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
945-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3969570-Animals,
pubmed-meshheading:3969570-Calmodulin,
pubmed-meshheading:3969570-Chickens,
pubmed-meshheading:3969570-Muscle Contraction,
pubmed-meshheading:3969570-Muscles,
pubmed-meshheading:3969570-Protein Conformation,
pubmed-meshheading:3969570-Troponin,
pubmed-meshheading:3969570-Troponin C,
pubmed-meshheading:3969570-Turkeys,
pubmed-meshheading:3969570-X-Ray Diffraction
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pubmed:year |
1985
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pubmed:articleTitle |
Molecular structure of troponin C from chicken skeletal muscle at 3-angstrom resolution.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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