Letter: Phosphite coupling procedure for generating internucleotide links.
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Methods↗
Biomedical subjects
G A Heavner
Publications and source records attributed to G A Heavner.
A novel synthesis of 8-aza steroids.
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Azasteroids↗
Biologically active analogs of thymopentin with enhanced enzymatic stability.
Thymopentin, a synthetic pentapeptide fragment of thymopoietin (residues 32-36, Arg-Lys-Asp-Val-Tyr) is biologically active but susceptible to proteolytic digestion. Analogs were synthesized and studied for biological activity and susceptibility to peptidases. Amino acid changes were incorporated at positions known to not affect activity adversely and N-terminal acetylation and C-terminal amidation were used to increase resistance to proteolytic degradation by exopeptidases. Ac-Pro2-TP5-NH2 and Aib2-TP5-NH2 retained activity and were shown to exhibit a high degree of stability when incubated in human serum.
Cell Line↗