Source:http://linkedlifedata.com/resource/pubmed/id/12595741
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 3
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pubmed:dateCreated |
2003-2-21
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pubmed:abstractText |
Previously determined crystal structures of the zinc enzyme Escherichia coli class II fructose-1,6-bisphosphate aldolase display good agreement for the protein structure but a differing metal-ion organization in the active site. The structure of the enzyme with Cd(2+) in place of Zn(2+) has now been determined to 2.0 A resolution to facilitate cation identification. The protein structure was essentially identical to other structures and five Cd(2+) positions were identified. Two of the cations are at the active site; one corresponds to the catalytic ion and the other provides a structural contribution. These Cd(2+) sites are equivalent to two Zn(2+) ions observed when the enzyme is complexed with a transition-state mimic and confirm our assignment of the roles played by these ions.
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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 |
Mar
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pubmed:issn |
0907-4449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
59
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
611-4
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pubmed:dateRevised |
2007-7-24
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pubmed:meshHeading |
pubmed-meshheading:12595741-Binding Sites,
pubmed-meshheading:12595741-Cadmium,
pubmed-meshheading:12595741-Catalysis,
pubmed-meshheading:12595741-Cations,
pubmed-meshheading:12595741-Crystallization,
pubmed-meshheading:12595741-Crystallography, X-Ray,
pubmed-meshheading:12595741-Escherichia coli,
pubmed-meshheading:12595741-Fructose-Bisphosphate Aldolase,
pubmed-meshheading:12595741-Models, Molecular,
pubmed-meshheading:12595741-Zinc
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pubmed:year |
2003
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pubmed:articleTitle |
The organization of divalent cations in the active site of cadmium Escherichia coli fructose-1,6-bisphosphate aldolase.
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pubmed:affiliation |
Division of Biological Chemistry and Molecular Microbiology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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