Identification of mNET1 as a candidate ligand for the first PDZ domain of MAGI-1

被引:42
作者
Dobrosotskaya, IY [1 ]
机构
[1] Univ Texas, SW Med Ctr, Dept Mol Genet, Grad Program Cell Regulat, Dallas, TX 75390 USA
关键词
MAGI-1; NET1; MAGUK; cell junction; small G protein; Rho;
D O I
10.1006/bbrc.2001.4880
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
This paper reports the identification of a Rho family nucleotide exchange factor termed mNET1 as a candidate-interacting partner for the first PDZ domain of MAGI-1, a membrane-associated guanylate kinase with inverted arrangement of protein-protein interacting modules, mNET1 was identified in a yeast two-hybrid screen and has a consensus tripeptide for PDZ domain binding at its extreme carboxy-terminus. In addition to this sequence, a cluster of basic residues located near the carboxy terminus is essential for the binding. The interaction of the first PDZ domain of MAGI-1 with mNET1 was documented using a variety of biochemical methods. (C) 2001 Academic Press.
引用
收藏
页码:969 / 975
页数:7
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