Synthesis of a Partial Sequence of Proinsulin Using the A-Chain of Natural Insulin. III. Synthesis of a Peptide Corresponding to Positions 41–81 of Bovine Proinsulin
作者:Hiroko Aiba、Yasutsugu Shimonishi
DOI:10.1246/bcsj.53.197
日期:1980.1
For the synthesis of bovine proinsulin, the S-sulfonate of the Leu–Glu–Gly–Pro–Pro–Gln–Lys[Z(2-Cl)]–Arg–A-chain, which was synthesized using the S-sulfonate of the A-chain of natural bovine insulin and which corresponds to positions 53–81 of bovine proinsulin, was coupled with Boc–Ala–Leu–Glu(OBut)–Leu–Ala–Gly–Gly–Pro–Gly–Ala–Gly–Gly–N3. After removal of the protecting groups from the resulting material the S-sulfonate of the Ala–Leu–Glu–Leu–Ala–Gly–Gly–Pro–Gly–Ala–Gly–Gly–Leu–Glu–Gly–Pro–Pro–Gln–Lys[Z(2-Cl)]–Arg–A-chain, corresponding to positions 41–81 of bovine proinsulin, was purified by chromatography on QAE-Sephadex A-25.
为了合成牛前胰岛素,使用了与天然牛胰岛素A链的S-磺酸盐合成的Leu–Glu–Gly–Pro–Pro–Gln–Lys[Z(2-Cl)]–Arg–A链的S-磺酸盐,其对应于牛前胰岛素的位置53–81,并将其与Boc–Ala–Leu–Glu(OBut)–Leu–Ala–Gly–Gly–Pro–Gly–Ala–Gly–Gly–N3偶联。在去除所得物质的保护基团后,对应于牛前胰岛素位置41–81的Ala–Leu–Glu–Leu–Ala–Gly–Gly–Pro–Gly–Ala–Gly–Gly–Leu–Glu–Gly–Pro–Pro–Gln–Lys[Z(2-Cl)]–Arg–A链的S-磺酸盐,通过在QAE-Sephadex A-25上的色谱法进行纯化。