Human gastrin-releasing polypeptide (hGRP), which consists of 27 amino acid residues with a C-terminal amide, was synthesized by a conventional solution method, by assembling six peptide fragments followed by deprotection with 1M trifluoromethanesulfonic acid-thioanisole in trifluoroacetic acid. Met(O) employed was reduced by treatment with phenylthiotrimethylsilane in the presence of trimethylsilyl trifluoromethanesulfonate before deprotection. The synthetic peptide was as active as synthetic porcine GRP, in terms of immunoreactive gastrin release in rats.
人类促胃液释放
多肽(hGRP)由27个
氨基酸残基组成,具有C末端胺,采用常规溶液法合成,通过组装六个肽片段,并使用1M三
氟甲烷磺酸-thioanisole在
三氟乙酸中进行去保护。使用的Met(O)在去保护之前,通过在三甲基
硅基三
氟甲烷磺酸盐存在下,用苯
硫基三甲基
硅烷处理进行还原。合成的肽在大鼠的免疫反应性促胃液释放方面与合成的猪GRP具有相同的活性。