Synthesis of the C-terminal half of thymosin alpha 1 by the polymeric reagent method.
Mokotoff. M M; Patchornik. A A
Key Findings
- Polymer‑bound 1‑hydroxybenzotriazole (PHBT) is an effective support for peptide synthesis
- The researchers assembled the 15‑28 segment of thymosin‑alpha‑1 using PHBT activation for each coupling step
- The final peptide fragment was obtained after deblocking and ion‑exchange purification
Practical Outcomes
- The technique could help skilled chemists produce this thymosin fragment, but it requires specialized equipment and expertise, so it isn’t a ready‑to‑use protocol for most biohackers. No information on dosage, safety, or performance benefits is provided.
Summary
The paper explains a lab chemistry method for building the C‑terminal half of the peptide thymosin‑alpha‑1 using a polymer‑bound reagent, but it doesn’t test any health effects or give dosing advice.
Abstract
In this report we further show the utility and efficiency of polymer-bound 1-hydroxybenzotriazole (PHBT) as an almost ideal support for the polymeric reagent method of peptide synthesis. This was demonstrated by the synthesis of thymosin alpha 1 (15-28), in which two suitably blocked segments, Boc-Asp (OtBu)-Leu-Lys (2Cz)-Glu (OBzl)-Lys (2Cz)-Lys (2Cz)-OH (3) and Boc-Glu (OBzl)-Val-Val-Glu (OBzl)-Glu (OBzl)-Ala-Glu (OBzl)-Asn-OBzl (2), were prepared entirely by utilizing PHBT activation for each coupling step. After appropriate deblocking of 2, segments 2 and 3 were coupled by the DCC-HOBT method, followed by complete deblocking and ion-exchange chromatographic purification, affording the C-terminal half of thymosin alpha 1, H-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH (1).
Study Information
pubmed
1983
10.1111/j.1399-3011.1983.tb03088.x