标题:Enkephalin biosynthetic pathway: a 5300-dalton adrenal polypeptide that terminates at its COOH end with the sequence [Met]enkephalin-Arg-Gly-Leu-COOH
期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1982
卷号:79
期号:4
页码:1313-1315
DOI:10.1073/pnas.79.4.1313
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:An enkephalin-containing polypeptide of 5300 daltons has been isolated from extracts of bovine adrenal medulla and purified to homogeneity, and its sequence has been determined by a combination of automated Edman degradation and enzymatic time-course hydrolysis. The polypeptide contains a single [Met]enkephalin sequence followed by Arg-Gly-Leu-COOH, which forms the COOH terminus of the molecule. The enkephalin sequence is preceded by a Lys-Arg linkage, typical of prohormone cleavage sites. Posttranslational processing of the polypeptide at this site would lead to release of the octapeptide [Met]enkephalin-Arg6-Gly7-Leu8.