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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-8-23
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pubmed:abstractText |
As a noncompetitive inhibitor of pig gastric H+/K(+)-ATPase, indomethacin inhibited the H+ transportation function of the enzyme, leading to not only the obvious dissipation of H+/K(+)-ATPase-generated H+ gradients, but also the decreasing of the H+ gradient formation ability of the enzyme. 4% of indomethacin was able to penetrate into the lipid bilayer of H+/K(+)-ATPase vesicles at 0.15 mg/ml protein concentration, which showed an influence of indomethacin to the membrane. Indomethacin reduced the membrane fluidity of H+/K(+)-ATPase vesicles significantly. It also damaged the conformation of membrane protein extraordinarily, which was evidenced by decreasing the intrinsic fluorescence of H+/K(+)-ATPase. From the results, we suggest that the effect of indomethacin on H+/K(+)-ATPase is taken place by its inhibition on H+/K(+)-ATPase protein, as well as by its influence on the membrane lipid bilayer of H+/K(+)-ATPase vesicles.
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pubmed:language |
chi
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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 |
0001-5334
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
27
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
61-70
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8042409-Animals,
pubmed-meshheading:8042409-H(+)-K(+)-Exchanging ATPase,
pubmed-meshheading:8042409-Indomethacin,
pubmed-meshheading:8042409-Ion Transport,
pubmed-meshheading:8042409-Lipid Bilayers,
pubmed-meshheading:8042409-Membrane Fluidity,
pubmed-meshheading:8042409-Protons,
pubmed-meshheading:8042409-Stomach,
pubmed-meshheading:8042409-Swine
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pubmed:year |
1994
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pubmed:articleTitle |
[Effect of indomethacin on H+ transportation of pig gastric H+/K(+)-ATPase].
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pubmed:affiliation |
Division of Biomembrane, Chinese Academy of Science, Beijing.
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pubmed:publicationType |
Journal Article,
English Abstract,
Research Support, Non-U.S. Gov't
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