IDENTIFICATION OF A NONNEURONAL ISOFORM OF SYNAPTOTAGMIN

被引：77

作者：

HUDSON, AW ^{[1
]}

BIRNBAUM, MJ ^{[1
]}

机构：

[1] HARVARD UNIV,SCH MED,DEPT CELL BIOL,BOSTON,MA 02115

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1995年 / 92卷 / 13期

关键词：

D O I：

10.1073/pnas.92.13.5895

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Synaptotagmins, which have been found exclusively in neuroendocrine or exocrine tissues, have been implicated in the regulation of secretory vesicle fusion with the plasma membrane. The present paper describes a synaptotagmin isoform (synaptotagmin-5) which exhibits 49% amino acid identity to synaptotagmin-1 and -2. Synaptotagmin-5 mRNA is expressed in rat kidney, adipose tissue, lung, and heart, as well as at higher levels in brain and PC12 cells. Antiserum specific for the synaptotagmin-5 isoform recognizes a protein of about 50 kDa which is about 6-fold more abundant in brain synaptic vesicles than in whole brain membranes.

引用

页码：5895 / 5899

页数：5

共 43 条

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