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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1998-2-12
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pubmed:abstractText |
Although angiotensin (ANG)-I is a substrate sensitive to chymase, the cleavage site differs among the chymase families. While human chymase (HC) hydrolyses the Phe8-His9 bond of ANG-I to ANG-II, rat chymase (RMCP-I) degrades the Tyr4-Ile5 bond of ANG-I to the inactive fragments. To clarify this different catalysis for ANG-I at the atomic level, three-dimensional structures of HC and RMCP-I were constructed by the molecular dynamic simulation. The energy-refined models clearly showed the significant difference in the electrostatic potential of the solvent surface. From the modeling study of their complex structures with ANG-I, the functional difference between both enzymes was clearly related with the electrostatic difference, especially at the C-terminal substrate-binding site.
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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
|
pubmed:month |
Jan
|
pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
6
|
pubmed:volume |
242
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
158-63
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9439628-Amino Acid Sequence,
pubmed-meshheading:9439628-Angiotensin I,
pubmed-meshheading:9439628-Animals,
pubmed-meshheading:9439628-Binding Sites,
pubmed-meshheading:9439628-Chymases,
pubmed-meshheading:9439628-Computer Simulation,
pubmed-meshheading:9439628-Humans,
pubmed-meshheading:9439628-Models, Molecular,
pubmed-meshheading:9439628-Molecular Sequence Data,
pubmed-meshheading:9439628-Rats,
pubmed-meshheading:9439628-Sequence Homology, Amino Acid,
pubmed-meshheading:9439628-Serine Endopeptidases,
pubmed-meshheading:9439628-Species Specificity,
pubmed-meshheading:9439628-Substrate Specificity
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pubmed:year |
1998
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pubmed:articleTitle |
Three-dimensional molecular modeling explains why catalytic function for angiotensin-I is different between human and rat chymases.
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pubmed:affiliation |
Medical Computation Center, Osaka Medical College, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|