Ling N, Burgus R, Guillemin R
Proc Natl Acad Sci U S A. 1976 Nov;73(11):3942-6. doi: 10.1073/pnas.73.11.3942.
The isolation and primary structure of two peptides with morphinomimetic activity, obtained from an extract of porcine hypothalamus-neurohypophysis, are described. The amino acid sequence of the two peptides, named alpha-endorphin and gamma-endophin, was determined by mass spectrometry and danxyl-Edman methods to be H-Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-OH and H-Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-OH, respectively. These correspond to the amino acid sequences present between residues 61 and 76 and residues 61 and 77 of the various beta-lipotropins. A third peptide also obtained in pure form in these studies was found to be an unstable salt of alpha-endorphin.
本文描述了从猪下丘脑 - 神经垂体提取物中获得的两种具有吗啡样活性的肽的分离及一级结构。通过质谱法和丹磺酰 - 埃德曼法确定了这两种肽(分别命名为α - 内啡肽和γ - 内啡肽)的氨基酸序列,分别为H - Tyr - Gly - Gly - Phe - Met - Thr - Ser - Glu - Lys - Ser - Gln - Thr - Pro - Leu - Val - Thr - OH和H - Tyr - Gly - Gly - Phe - Met - Thr - Ser - Glu - Lys - Ser - Gln - Thr - Pro - Leu - Val - Thr - Leu - OH。这些序列分别对应于各种β - 促脂素第61至76位残基之间以及第61至77位残基之间的氨基酸序列。在这些研究中还以纯形式获得的第三种肽被发现是α - 内啡肽的一种不稳定盐。