rdf:type |
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lifeskim:mentions |
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pubmed:issue |
2
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pubmed:dateCreated |
2003-2-27
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pubmed:abstractText |
GTP cyclohydrolase I (GTPCH I) catalyzes the de novo biosynthesis of tetrahydrobiopterin (BH(4)), an essential cofactor of NO-synthase. The enzyme underlies negative feedback regulation by the end product BH(4). This feedback inhibition is mediated through complex formation with the GTP cyclohydrolase I feedback regulatory protein (GFRP). To further classify the mechanism involved in the regulation of BH(4) synthesis, we measured expression of GTPCH I and GFRP in different human tissues. Furthermore, we looked for the influence of phenylalanine that is known to reverse BH(4)-mediated feedback inhibition of GTPCH I, and of immunostimulation with interferon gamma on the expression of GTPCH I and GFRP.
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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 |
http://linkedlifedata.com/resource/pubmed/chemical/5,6,7,8-tetrahydrobiopterin,
http://linkedlifedata.com/resource/pubmed/chemical/Antiviral Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Biopterin,
http://linkedlifedata.com/resource/pubmed/chemical/GCHFR protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/GTP Cyclohydrolase,
http://linkedlifedata.com/resource/pubmed/chemical/Interferon-gamma,
http://linkedlifedata.com/resource/pubmed/chemical/Intracellular Signaling Peptides...,
http://linkedlifedata.com/resource/pubmed/chemical/Phenylalanine,
http://linkedlifedata.com/resource/pubmed/chemical/Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0300-8428
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
98
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
69-75
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:12607127-Antiviral Agents,
pubmed-meshheading:12607127-Biopterin,
pubmed-meshheading:12607127-Blotting, Northern,
pubmed-meshheading:12607127-Cells, Cultured,
pubmed-meshheading:12607127-Endothelium, Vascular,
pubmed-meshheading:12607127-GTP Cyclohydrolase,
pubmed-meshheading:12607127-Gene Expression Regulation,
pubmed-meshheading:12607127-Humans,
pubmed-meshheading:12607127-Interferon-gamma,
pubmed-meshheading:12607127-Intracellular Signaling Peptides and Proteins,
pubmed-meshheading:12607127-Phenylalanine,
pubmed-meshheading:12607127-Proteins,
pubmed-meshheading:12607127-RNA, Messenger,
pubmed-meshheading:12607127-Reverse Transcriptase Polymerase Chain Reaction,
pubmed-meshheading:12607127-Umbilical Veins
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pubmed:year |
2003
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pubmed:articleTitle |
Role of human GTP cyclohydrolase I and its regulatory protein in tetrahydrobiopterin metabolism.
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pubmed:affiliation |
Department of Cardiology, University of Heidelberg, Bergheimer Str. 58, 69115 Heidelberg, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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