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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1998-8-27
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pubmed:abstractText |
The X-ray crystal structures of the protease subtilisin Carlsberg in 40% acetonitrile and in 20% dioxane have been determined to at least 2.3 A resolution, and their solvent binding patterns have been compared to those observed in the neat organic solvents. The structures of the protein in the two aqueous-organic mixtures are essentially the same as in pure water, acetonitrile, and dioxane. Interestingly, the enzyme-bound organic solvent molecules tend to congregate in the active site. Three of the five bound acetonitrile molecules observed in the structure of subtilisin in 40% acetonitrile are situated in the enzyme active site, as is the single enzyme-bound dioxane molecule observed in 20% dioxane (whose location is distinct from that of any bound acetonitrile molecule). Furthermore, the organic solvent molecules detected in the enzyme active site in the aqueous-organic mixtures are in the same locations as in the structures in the corresponding neat organic solvents.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1,4-dioxane,
http://linkedlifedata.com/resource/pubmed/chemical/Acetonitriles,
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Dioxanes,
http://linkedlifedata.com/resource/pubmed/chemical/Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Solvents,
http://linkedlifedata.com/resource/pubmed/chemical/Subtilisins,
http://linkedlifedata.com/resource/pubmed/chemical/acetonitrile
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1998 Academic Press.
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pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
248
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
273-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9675126-Acetonitriles,
pubmed-meshheading:9675126-Bacillus,
pubmed-meshheading:9675126-Bacterial Proteins,
pubmed-meshheading:9675126-Binding Sites,
pubmed-meshheading:9675126-Crystallography, X-Ray,
pubmed-meshheading:9675126-Dioxanes,
pubmed-meshheading:9675126-Endopeptidases,
pubmed-meshheading:9675126-Models, Molecular,
pubmed-meshheading:9675126-Protein Binding,
pubmed-meshheading:9675126-Solvents,
pubmed-meshheading:9675126-Subtilisins
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pubmed:year |
1998
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pubmed:articleTitle |
Organic solvent binding to crystalline subtilisin1 in mostly aqueous media and in the neat solvents.
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pubmed:affiliation |
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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