XB-ART-26546
Chem Pharm Bull (Tokyo)
1989 Sep 01;379:2467-71.
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Synthesis of a thymosin beta 4-like peptide, deacetyl-thymosin beta Xen4, and its restorative effect on depressed lymphocyte blastogenic response to phytohemagglutinin (PHA) in uremic patients.
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An analog of thymosin beta Xen4 isolated from oocytes of Xenopus laevis, deacetyl-thymosin beta Xen4, was synthesized by assembling 6 peptide fragments, followed by deprotection with 1 M trifluoromethanesulfonic acid-thioanisole (molar ratio, 1:1) in trifluoroacetic acid in the presence of dimethylselenium. Finally, the deprotected peptide was incubated with dithiothreitol to reduce sulfoxide on the methionine side chain. The synthetic tritetracontapeptide was found to have a restoring effect on the impaired blastogenic response of T-lymphocytes isolated from uremic patients.
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Species referenced: Xenopus laevis
Genes referenced: tmsb4x