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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1987-9-21
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pubmed:abstractText |
The 41-residue sequences of recently identified porcine corticotropin-releasing factors [Ile40]pCRF and [Asn40]pCRF were assembled on a benzhydrylamine resin support. Deprotection and cleavage from the resin were accomplished by HF treatment. The crude peptides were purified by HPLC. The homogeneity of the final materials, obtained in 0.2% and 0.4% overall yield for [Ile40]pCRF and [Asn40]pCRF respectively, was assessed after the isolation by HPLC and amino acid analysis. Both sequences of the synthetic 41-residue pCRF stimulated the release of corticotropin (ACTH) from superfused rat pituitary cells on a column, the responses being related to a log-dose of CRF in the range of 1-20 ng/ml. [Ile40]pCRF and [Asn40]pCRF also augmented the in vivo release of ACTH in rats pretreated with chlorpromazine, morphine and Nembutal. [Ile40]pCRF appeared to be equipotent to ovine CRF and about twice as active as [Asn40]pCRF. The data indicate that synthetic porcine [Ile40]pCRF and [Asn40]pCRF have high biological activity.
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pubmed:grant | |
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 |
Aug
|
pubmed:issn |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
24
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pubmed:volume |
41
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1003-10
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3039275-Adrenocorticotropic Hormone,
pubmed-meshheading:3039275-Amino Acids,
pubmed-meshheading:3039275-Animals,
pubmed-meshheading:3039275-Chromatography, High Pressure Liquid,
pubmed-meshheading:3039275-Corticotropin-Releasing Hormone,
pubmed-meshheading:3039275-Pituitary Gland, Anterior,
pubmed-meshheading:3039275-Swine
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pubmed:year |
1987
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pubmed:articleTitle |
Synthesis, purification and biological evaluation of porcine corticotropin-releasing factor.
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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.
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