NOVEL PROTEINS MEDIATE AN INTERACTION BETWEEN CLATHRIN-COATED VESICLES AND POLYMERIZING ACTIN-FILAMENTS

被引:12
作者
KOHTZ, DS [1 ]
HANSON, V [1 ]
PUSZKIN, S [1 ]
机构
[1] CUNY MT SINAI SCH MED,DEPT PATHOL,MOLEC & CELLULAR PATHOL LABS,NEW YORK,NY 10029
来源
EUROPEAN JOURNAL OF BIOCHEMISTRY | 1990年 / 192卷 / 02期
关键词
D O I
10.1111/j.1432-1033.1990.tb19226.x
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
A monoclonal antibody, A‐7C11, was generated which reacts with two polypeptides of 40 kDa and 80 kDa associated with the coat proteins of purified brain clathirn‐coated vesicles. The 40‐kDa antigen was purified and found to display actin‐binding properties. Negative‐staining electron microscopy showed that one of the antigens reactive with A‐7C11 appears to mediate the association of isolated clathrin‐coated vesicles with assembling actin filaments in vitro. Immunofluorescence microscopy of cultured fibroblasts with A‐7C11 revealed the antigens aligned with both actin filaments and as punctate structures near the plasma membrane. The data suggest that the interaction between clathrin‐coated vesicles and the actin cytoskeleton is mediated by antigens identified by monoclonal antibody A‐7C11. Copyright © 1990, Wiley Blackwell. All rights reserved
引用
收藏
页码:291 / 298
页数:8
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