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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
16
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pubmed:dateCreated |
1999-9-9
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pubmed:abstractText |
Polypeptide conformer interconversion in a low dielectric environment is shown to be highly dependent on water concentration. Water increases this rate by 10(3), apparently by catalyzing hydrogen bond exchange, and thereby presenting functional properties analogous to that of a foldase. This catalytic effect is demonstrated on the interconversion of a parallel gramicidin dimer into an antiparallel dimer. A Hill coefficient of 6.5 is observed, illustrating the highly cooperative nature of the process. Protein folding in nonpolar environs, such as the hydrophobic core of a protein or the hydrophobic domain of a lipid bilayer, may be contingent on and rate-limited by the scarcity of water.
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pubmed:grant |
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-10049303,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-1381444,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-1382580,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-1700867,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-1948083,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-2472295,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-2473960,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-2658221,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-2734612,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-4139971,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-5011960,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-56911,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-7690158,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-7693092,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-7892604,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-8650185,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-8984645,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-9092482,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-9251781,
http://linkedlifedata.com/resource/pubmed/commentcorrection/10430894-9376374
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0027-8424
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
96
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9057-61
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:10430894-Dioxanes,
pubmed-meshheading:10430894-Gramicidin,
pubmed-meshheading:10430894-Kinetics,
pubmed-meshheading:10430894-Models, Chemical,
pubmed-meshheading:10430894-Models, Molecular,
pubmed-meshheading:10430894-Nuclear Magnetic Resonance, Biomolecular,
pubmed-meshheading:10430894-Peptides,
pubmed-meshheading:10430894-Protein Conformation,
pubmed-meshheading:10430894-Protein Folding,
pubmed-meshheading:10430894-Water
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pubmed:year |
1999
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pubmed:articleTitle |
Water: foldase activity in catalyzing polypeptide conformational rearrangements.
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pubmed:affiliation |
Department of Chemistry, Institute of Molecular Biophysics, and The National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32306, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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