Zobrazeno 1 - 10
of 883
pro vyhledávání: '"Choh Hao Li"'
Publikováno v:
International Journal of Peptide and Protein Research. 19:343-347
A beta-endorphin-(1-27)-like peptide was isolated from bovine cerebral hemisphere extracts by gel filtration, ion-exchange chromatography, high performance liquid chromatography and paper electrophoresis. The peptide had tyrosine as the amino-termina
Publikováno v:
International Journal of Peptide and Protein Research. 24:516-519
Three analogs of human beta-endorphin (beta h-EP) have been synthesized by the solid-phase method: [Phe2, Gly4]-beta h-EP(I), [Tyr5]-beta h-EP (II), and [Trp5[-beta h-ET (III). Analogs I and II are related to the highly potent hybrid analog [dermorph
Autor:
Choh Hao Li, James F. Blake
Publikováno v:
International Journal of Peptide and Protein Research. 11:315-322
Three analogs of the carboxyl terminal plasmin fragment of human somatotropin, [Nle 170, Ala165, 182, 189]-human somatotropin-(145-191), [Nle170, Ala165, 182, 189]-human somatotropin-(140-191), and [Lys135,136, 138, Glu137, 139, Nle170, Ala165, 182,
Autor:
Pascual Ferrara, Choh Hao Li
Publikováno v:
International Journal of Peptide and Protein Research. 19:259-262
Human beta-endorphin analogs with various chain lengths have been investigated for their potency in displacing tritiated dihydromorphine and Leu-enkephalin binding in rat brain membrane preparations. It was found that the reduction of chain length fr
Autor:
Choh Hao Li, Michael D. Jibson
Publikováno v:
International Journal of Peptide and Protein Research. 18:297-301
The alpha-helix content of human beta-endorphin (beta h-EP) has been determined by circular dichroism (CD) in solutions ranging from 0 to 95% methanol in water. In addition, the CD spectra of beta h-EP-(1-30),-(1-29),-(1-28),-(1-27),-(1-26),-(1-21) a
Publikováno v:
International Journal of Peptide and Protein Research. 19:361-365
Stimulation of corticosterone and aldosterone production in rat adrenal decapsular and capsular cells respectively by alpha- and beta-melanotropins (alpha- and beta-MSH) have been investigated. Although they are considerably less potent than corticot
Publikováno v:
International Journal of Peptide and Protein Research. 19:348-353
A double-headed analog of human beta-endorphin (betah-EP), N,N'-bis (beta-endorphinyl)-cystine (II), has been synthesized by the solid-phase method, along with betah-EP-Cys(CH2CONH2)-OH (I) and [Tyr31]-betah-EP (III). Their relative potencies in a ra
Publikováno v:
International Journal of Peptide and Protein Research. 12:173-176
Human beta-endorphin (betah-EP) inhibits urine flow in rats. This antidiuretic effect of the peptide occurs after intravenous and intraventricular injections. Intravenously, betah-EP is 24 times more potent than morphine. Intraventricularly, betah-EP
Autor:
Pascual Ferrara, Choh Hao Li
Publikováno v:
International Journal of Peptide and Protein Research. 16:66-69
An assay system is described to measure the specific binding of beta-endorphin to opiate sites (receptors) in rat brain membrane preparations using the tritiated hormone as the primary ligand. By this assay procedure, the radioreceptor activity of be
Autor:
James F. Blake, Choh Hao Li
Publikováno v:
International Journal of Peptide and Protein Research. 6:141-144