Format

Send to

Choose Destination
Biochem Biophys Res Commun. 2000 May 19;271(3):626-9.

Rho small G-protein-dependent binding of mDia to an Src homology 3 domain-containing IRSp53/BAIAP2.

Author information

1
Department of Molecular Biology and Biochemistry, Osaka University Graduate School of Medicine/ Faculty of Medicine, Suita, 565-0871, Japan.

Abstract

mDia1 is a downstream effector of Rho small G protein that is implicated in stress fiber formation and cytokinesis. We isolated an mDia1-binding protein and identified it to be IRSp53/BAIAP2. IRSp53 and BAIAP2 have independently been isolated as a 58/53-kDa protein tyrosine phosphorylated in response to insulin and a BAI1-binding protein, respectively. BAI1 is a brain-specific seven-span transmembrane protein capable of inhibiting angiogenesis. The proline-rich formin homology 1 domain of mDia1 bound the Src homology 3 domain of IRSp53/BAIAP2 in a GTP-Rho-dependent manner. The results suggest that IRSp53/BAIAP2 is a downstream effector of mDia1.

PMID:
10814512
DOI:
10.1006/bbrc.2000.2671
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center