Chapter Category: Molecular Biology

From the book The Pombe Cdc15 Homology Proteins

Gas 7

Wenlynn B. Su, Jhong-Jhe You, Bo-Tsang Huang, Vishwanathan Sivakumar, Shauh-Der Yeh and Sue Lin-Chao

Gas7 (growth‑arrest specific gene 7) has recently been classified to be a member of the Pombe Cdc 15 homology (PCH) family and belongs to the proline, serine, threonine‑rich phosphatase interacting protein (PSTPIP) subfamily.1,2 Most PCH proteins share a similar domain architecture, which is composed of an N‑terminal Fes/CIP4 homology (FCH) domain, a coiled‑coil (CC) region and one or two Src homology (SH3) domains.1 The PSTPIPs, a subfamily of the PCH proteins, are tyrosine‑phosphorylated proteins involved in the organization of the cytoskeleton and are substrates for the PEST‑type protein tyrosine phosphatases.3,4 Among the PSTPIPs, PSTPIP1 interacts with neural Wiskott‑Aldrich Syndrome protein (N‑WASP) and the interaction is regulated by phosphorylation on two tyrosine residues in the SH3 domain.5 In addition, another member of the PSTPIP subfamily, PSTPIP2, has been proven to directly bind and crosslink actin to induce filopodia formation.6,7 This chapter will present the identified characteristics of mouse Gas7 as well as its physiological roles in relation to the PCH proteins, especially the PSTPIP family.

Taken from the book

The Pombe Cdc15 Homology Proteins

Edited by: Pontus Aspenström

More chapters from the book:

The PACSIN Proteins and their Role in Membrane Trafficking
Markus Plomann, Matthias Mörgelin and Sylvia Schael

PACSIN 1/syndapin 1 was originally identified by its drastic expression decrease during CNS repair processes and by virtue of its binding to the GTPase dynamin. The three family members play important roles as accessory proteins in clathrin‑mediated endocytosis. They differ in tissue...


F‑BAR Domain Proteins in Schizosaccharomyces pombe
Rachel H Roberts-Galbraith and Kathleen L. Gould

S chizosaccharomyces pombe is a simple model organism ideal for study of conserved proteins of interest. The genome of S. pombe encodes seven proteins containing F‑BAR domains, including four scaffolding proteins of the pombe cdc15 homology (PCH) family and three Rho GTPase activating...


The CIP4 Family of F‑BAR Domain‑Containing Proteins
Marcia Toguchi and Pontus Aspenström

The F‑BAR family of proteins has emerged as important coordinators of signaling pathways that regulate actomyosin assembly and membrane dynamics. This review article will focus on the Cdc42‑interacting protein 4 (CIP4) family of proteins. Recently, they have been found to bind phospholipids...


The NOSTRIN Subfamily of PCH/F‑BAR Proteins
Ann Siehoff-Icking, Masood Siddique and Werner Müller-Esterl

NOSTRIN is a prototypic PCH/F‑BAR protein with an N‑terminal F‑BAR domain mediating membrane association and a C‑terminal SH3 domain representing a docking platform for various proteins. Human NOSTRIN has recently been shown to function as an adaptor protein in caveolar trafficking of...


FES and FER: The F‑BAR Domain‑Containing Protein‑Tyrosine Kinases
Waheed Sangrar, Andrew W. Craig and Peter A. Greer

FES and FER are the only two members of a distinct subgroup of the protein‑tyrosine kinase (PTK) family. What distinguishes them from other PTKs and indeed all other kinases, are their unique amino‑terminal domains, which contain sequences homologous to the recently solved F‑BAR domains of...


PSTPIP1 and PSTPIP2/MAYP
Violeta Chitu and E. Richard Stanley

PSTPIP1 and PSTPIP2 are expressed predominantly in the hematopoietic system where their C‑terminal tyrosine phosphorylation is regulated by PEST family phosphatases. Both proteins deform membranes via their conserved F‑BAR domains and regulate actin organization, but their actin regulatory...


Proteins that belong to the BAR (Bin, Amphiphysin, RVS) domain superfamily are alpha‑helical bilayer‑binding modules that have evolved to induce or stabilize membrane curvature during cellular events like endocytosis, cell division and organelle biogenesis. Within the superfamily, a subset of...


The Budding Yeast PCH/F‑BAR Proteins
Alan L. Munn and Barbara Winsor

The budding yeast Saccharomyces cerevisiae genome encodes two classical Pombe Cdc15 Homology (PCH) proteins: Hof1p (or Cyk2p) and Bzz1p (or Lsb7p). Like mammalian PCH proteins, both have an N‑terminal F‑BAR domain and C‑terminal Src Homology 3 (SH3) domain(s). The yeast genome also encodes...


Gas 7
Wenlynn B. Su, Jhong-Jhe You, Bo-Tsang Huang, Vishwanathan Sivakumar, Shauh-Der Yeh and Sue Lin-Chao

Gas7 (growth‑arrest specific gene 7) has recently been classified to be a member of the Pombe Cdc 15 homology (PCH) family and belongs to the proline, serine, threonine‑rich phosphatase interacting protein (PSTPIP) subfamily.1,2 Most PCH proteins share a similar domain architecture, which is...


Advertisements