POLYGENIC EXPRESSION OF SOMATOSTATIN IN LAMPREY

被引:32
作者
SOWER, SA [1 ]
CHIANG, YC [1 ]
CONLON, JM [1 ]
机构
[1] CREIGHTON UNIV,SCH MED,DEPT BIOMED SCI,CTR REGULATORY PEPTIDE,OMAHA,NE 68178
基金
美国国家科学基金会;
关键词
SOMATOSTATIN; AGNATHAN; LAMPREY BRAIN; POSTTRANSLATIONAL PROCESSING;
D O I
10.1016/0196-9781(94)90184-8
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Previous studies have led to the identification of three biosynthetically related molecular forms of somatostatin (somatostatin-14, -34 and -37) from the pancreas of the sea lamprey (Petromyzon marinus). We have now isolated from the brain of the same species a second form of somatostatin-14 that is identical to mammalian somatostatin-14 and differs from lamprey pancreatic somatostatin-14 by the substitution Ser(12) to Thr. Larger forms of somatostatin were not identified in lamprey brain in this study. These data suggest that the two molecular forms of lamprey somatostatin-14 are the products of different genes that are expressed in a tissue-specific manner.
引用
收藏
页码:151 / 154
页数:4
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