Msb4p, a Protein Involved in Cdc42p-Dependent Organization of the Actin Cytoskeleton, Is a Ypt/Rab-Specific GAP
Copyright policy )Msb4p, a Protein Involved in Cdc42p-Dependent Organization of the Actin Cytoskeleton, Is a Ypt/Rab-Specific GAP
Ypt/Rab proteins of the Ras superfamily are regulators of protein transport in exo- and endocytosis. Like Ras and Rho proteins, they have a slow intrinsic GTPase activity that can be accelerated by several orders of magnitude by GTPase-activating proteins (GAP). Here we describe a new member of a family of Ypt/Rab-specific GAPs, Msb4p/Gyp4p, that shares with other Gyp family members significant homology in the catalytic domain, recently identified in Gyp1p and Gyp7p. Purified Msb4p/Gyp4p acts primarily on Sec4p, Ypt6p and Ypt7p and might have a role in polarized secretion.
cdc42 GTP-Binding Protein, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Base Sequence, Sequence Homology, Amino Acid, GTPase-Activating Proteins, Molecular Sequence Data, Intracellular Signaling Peptides and Proteins, Actins, Fungal Proteins, rab GTP-Binding Proteins, Amino Acid Sequence, Cloning, Molecular, Cytoskeleton, DNA Primers
cdc42 GTP-Binding Protein, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Base Sequence, Sequence Homology, Amino Acid, GTPase-Activating Proteins, Molecular Sequence Data, Intracellular Signaling Peptides and Proteins, Actins, Fungal Proteins, rab GTP-Binding Proteins, Amino Acid Sequence, Cloning, Molecular, Cytoskeleton, DNA Primers
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