Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1987-9-21
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0024-3205
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1003-10
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Synthesis, purification and biological evaluation of porcine corticotropin-releasing factor.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.