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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1977-9-17
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pubmed:abstractText |
The binding of a series of alkyl 1-thio-beta-D-galactopyranosides to beta-D-galactosidase from E. coli has been investigated. The inhibition constants were compared to the partition coefficients for the transfer of these substrate-analogues from water to 1-octanol. The relationships between the observed binding-constants and the partition coefficients indicate that part of the aglycon group binds to a hydrophobic area that is limited in relation to the length of hydrocarbon chain that can be accomodated. Outside this area, the hydrocarbon chain is only partially desolvated. The main driving-force for binding of the aglycon group is the increase in entropy resulting from the return of water molecules from the more-organized layer around the solute molecule to the bulk-water phase.
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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 |
Jun
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pubmed:issn |
0008-6215
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
56
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
153-64
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:18283-Escherichia coli,
pubmed-meshheading:18283-Galactosidases,
pubmed-meshheading:18283-Hydrogen-Ion Concentration,
pubmed-meshheading:18283-Kinetics,
pubmed-meshheading:18283-Mathematics,
pubmed-meshheading:18283-Protein Binding,
pubmed-meshheading:18283-Structure-Activity Relationship,
pubmed-meshheading:18283-Temperature,
pubmed-meshheading:18283-Thiogalactosides,
pubmed-meshheading:18283-Thioglycosides
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pubmed:year |
1977
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pubmed:articleTitle |
Binding of alkyl 1-thio-beta-D-galactopyranosides to beta-D-galactosidase from E. coli.
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pubmed:publicationType |
Journal Article
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