PUBLICATION
Cell shape regulation by Gravin requires N-terminal membrane effector domains
- Authors
- Weiser, D.C., Julien, K.R., Lang, J.S., and Kimelman, D.
- ID
- ZDB-PUB-080902-7
- Date
- 2008
- Source
- Biochemical and Biophysical Research Communications 375(4): 512-516 (Journal)
- Registered Authors
- Kimelman, David, Weiser, Douglas C.
- Keywords
- AKAP, Gravin, SSeCKS, Cell spreading, Zebrafish
- MeSH Terms
-
- Animals
- COS Cells
- Zebrafish Proteins/genetics
- Zebrafish Proteins/physiology*
- Protein Structure, Tertiary
- Cell Membrane/enzymology
- Chlorocebus aethiops
- Zebrafish/genetics
- Zebrafish/metabolism
- A Kinase Anchor Proteins/genetics
- A Kinase Anchor Proteins/physiology*
- Cell Movement/genetics
- Cell Shape*/genetics
- PubMed
- 18725198 Full text @ Biochem. Biophys. Res. Commun.
Citation
Weiser, D.C., Julien, K.R., Lang, J.S., and Kimelman, D. (2008) Cell shape regulation by Gravin requires N-terminal membrane effector domains. Biochemical and Biophysical Research Communications. 375(4):512-516.
Abstract
Gravin (AKAP12, SSeCKS) is a scaffolding protein that acts as a potent inhibitor of tumor metastasis in vivo and in vitro, and regulates morphogenesis during vertebrate gastrulation. Despite being implicated in many cellular processes, surprisingly little is known about the mechanism by which Gravin elicits cell shape changes. In this work, we use in vitro cell spreading assays to demonstrate that the Gravin N-terminus containing the three MARCKS-like basic regions (BRs) is necessary and sufficient to regulate cell shape in vitro. We show that the conserved phosphorylation sites in the BRs are essential for their function in these assays. We further demonstrate that the Gravin BRs are necessary for in vivo function during gastrulation in zebrafish. Together, these results provide an important step forward in understanding the mechanism of Gravin function in cell shape regulation and provide valuable insight into how Gravin acts as a cytoskeletal regulator.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping