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FEBS Lett. 1995 May 15;364(3):283-8.

Molecular cloning of a novel actin-binding protein, p57, with a WD repeat and a leucine zipper motif.

Author information

1
Pharmaceutical Basic Research Laboratories, Japan Tobacco Inc., Kanagawa.

Abstract

A 57 kDa protein (p57) was obtained during the study on phosphatidylinositol-specific phospholipase C. Its cDNA was isolated from calf spleen and human leukemia cell line HL60 libraries and cloned. In the primary structures of p57, they have two unique amino acid sequence motifs, a WD repeat and a leucine zipper motif. Furthermore, p57 shared sequence similarity (40%) with coronin, an actin-binding protein responsible for chemotaxis, cell motility, and cytokinesis of Dictyostelium discoideum, which has only the WD repeat. p57 also showed an actin-binding activity and was mainly expressed in immune tissues. From these results, we conclude that p57 is a coronin-like novel actin-binding protein in mammalian cells but may also have a different function from coronin.

PMID:
7758584
DOI:
10.1016/0014-5793(95)00393-n
[Indexed for MEDLINE]
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