FunctionRelays signals from the cell surface to the nucleus to weaken adherens junction and promote actin cytoskeleton reorganization and cell invasiveness. Involved in lysophosphatidic acid-induced cell adhesion and migration. Acts as a transcriptional coactivator for NF-kappa-B and JUN, and mediates the transrepression of these transcription factors induced by glucocorticoid receptor.
Tissue specificityAbundantly expressed in kidney, liver and lung. Lower levels in heart, placenta and pancreas. Expressed in colonic epithelial cells. Up-regulated in colonic tumors.
Sequence similaritiesBelongs to the zyxin/ajuba family. Contains 3 LIM zinc-binding domains.
DomainThe LIM zinc-binding domains mediate interaction with LPAR2 and with S.typhimurium protein sseI.
Post-translational modificationsPhosphorylation at Tyr-55 by SRC is required for enhancement of lysophosphatidic acid-induced cell migration. Tyr-55 is dephosphorylated by PTPN13.
Cellular localizationCytoplasm > cytoskeleton. Cell junction > focal adhesion. Nucleus. Cytoplasm. Shuttles between nucleus and cytoplasm.