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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1989-12-11
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pubmed:abstractText |
In the presence of porcine aortic endothelial cytosol, soluble guanylyl cyclase purified from bovine lung was activated by L-arginine up to 2.5-fold, with an EC50 of about 6 microM. This activation was dependent on NADPH and Ca2+. The EC50 for Ca2+ was about 60 nM. No effect of L-arginine on guanylyl cyclase was observed when the cytosolic proteins were heat-denaturated. The effect of L-arginine was inhibited by NG-monomethyl-L-arginine and hemoglobin. These results indicate that endothelial cells contain a cytosolic enzyme which is directly or indirectly regulated by Ca2+ and converts L-arginine into a compound which in stimulating soluble guanylyl cyclase behaves similar to endothelium-derived relaxing factor.
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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 |
Oct
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
31
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pubmed:volume |
164
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
678-85
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2573351-Animals,
pubmed-meshheading:2573351-Aorta,
pubmed-meshheading:2573351-Arginine,
pubmed-meshheading:2573351-Calcium,
pubmed-meshheading:2573351-Cattle,
pubmed-meshheading:2573351-Cells, Cultured,
pubmed-meshheading:2573351-Cytosol,
pubmed-meshheading:2573351-Endothelium, Vascular,
pubmed-meshheading:2573351-Enzyme Activation,
pubmed-meshheading:2573351-Guanylate Cyclase,
pubmed-meshheading:2573351-Kinetics,
pubmed-meshheading:2573351-Lung,
pubmed-meshheading:2573351-Nitric Oxide,
pubmed-meshheading:2573351-Swine
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pubmed:year |
1989
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pubmed:articleTitle |
Biosynthesis of endothelium-derived relaxing factor: a cytosolic enzyme in porcine aortic endothelial cells Ca2+-dependently converts L-arginine into an activator of soluble guanylyl cyclase.
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pubmed:affiliation |
Institut für Pharmakologie, Freie Universität Berlin, F.R.G.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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