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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1996-12-31
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pubmed:abstractText |
Endothelin-converting enzyme is a phosphoramidon-sensitive membrane metallopeptidase that catalyses the final step in biosynthesis of the potent vasoactive endothelin peptides. Immunomagnetic separation technology and immunohistochemistry have been used to demonstrate the co-localisation of endothelin-converting enzyme with the established ectoenzyme, aminopeptidase N, on the surface of endothelial cells. Unlike aminopeptidase N, however, endothelin-converting enzyme is seen to associate in clusters on the plasma membrane which can be distinguished from caveolae both biochemically and immunologically. Pre-treatment of endothelial cells with the metallopeptidase inhibitors phosphoramidon or thiorphan in the range 0.01-100 microM produced a dose-dependent increase in the levels of endothelin-converting enzyme protein and its accumulation in an intracellular compartment. No corresponding change in the levels of endothelin-converting enzyme-1 mRNA was detected under these conditions, nor in the levels of the closely related metalloenzyme, endopeptidase-24.11. The phosphoramidon and thiorphan-dependent increase is not due to direct inhibition of endothelin-converting enzyme not endopeptidase-24.11 but, rather, to an inhibition of the selective turnover of endothelin-converting enzyme protein.
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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/Aspartic Acid Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Glycopeptides,
http://linkedlifedata.com/resource/pubmed/chemical/Metalloendopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Protease Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Thiorphan,
http://linkedlifedata.com/resource/pubmed/chemical/endothelin-converting enzyme,
http://linkedlifedata.com/resource/pubmed/chemical/phosphoramidon
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0021-9533
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
109 ( Pt 5)
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
919-28
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:8743939-Animals,
pubmed-meshheading:8743939-Aspartic Acid Endopeptidases,
pubmed-meshheading:8743939-Base Sequence,
pubmed-meshheading:8743939-Cell Compartmentation,
pubmed-meshheading:8743939-Cell Membrane,
pubmed-meshheading:8743939-Cells, Cultured,
pubmed-meshheading:8743939-Fluorescent Antibody Technique,
pubmed-meshheading:8743939-Glycopeptides,
pubmed-meshheading:8743939-Immunoblotting,
pubmed-meshheading:8743939-Immunomagnetic Separation,
pubmed-meshheading:8743939-Metalloendopeptidases,
pubmed-meshheading:8743939-Molecular Sequence Data,
pubmed-meshheading:8743939-Protease Inhibitors,
pubmed-meshheading:8743939-Swine,
pubmed-meshheading:8743939-Thiorphan,
pubmed-meshheading:8743939-Up-Regulation
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pubmed:year |
1996
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pubmed:articleTitle |
Metallopeptidase inhibitors induce an up-regulation of endothelin-converting enzyme levels and its redistribution from the plasma membrane to an intracellular compartment.
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pubmed:affiliation |
Department of Biochemistry and Molecular Biology, University of Leeds, UK.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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