PARD6A Antibody – Rabbit Polyclonal

This gene is a member of the PAR6 family and encodes a protein with a PSD95/Discs-large/ZO1 (PDZ) domain and a semi-Cdc42/Rac interactive binding (CRIB) domain. This cell membrane protein is involved in asymmetrical cell division and cell polarization processes as a member of a multi-protein complex. The protein also has a role in the epithelial-to-mesenchymal transition (EMT) that characterizes the invasive phenotype associated with metastatic carcinomas. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

PARD6A: Adapter protein involved in asymmetrical cell division and cell polarization processes. Probably involved in the formation of epithelial tight junctions. Association with PARD3 may prevent the interaction of PARD3 with F11R/JAM1, thereby preventing tight junction assembly. The PARD6-PARD3 complex links GTP-bound Rho small GTPases to atypical protein kinase C proteins. Interacts with MAP2K5. Interacts with PARD3. Interacts with GTP-bound forms of CDC42, ARHQ/TC10 and RAC1. Interacts with the N-terminal part of PRKCI and PRKCZ. Part of a complex with PARD3, CDC42 or RAC1 and PRKCI or PRKCZ. Part of a complex with LLGL1 and PRKCI. Interacts with human T-cell leukemia virus type I TAX protein. Interacts with MPP5 and CRB3. Interacts with TGFBR1; involved in TGF-beta induced epithelial to mesenchymal transition. Interacts with ECT2 ('Thr- 359' phosphorylated form) and PRKCI. Expressed in pancreas, skeletal muscle, brain and heart. Weakly expressed in kidney and placenta. Belongs to the PAR6 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Adaptor/scaffold; Motility/polarity/chemotaxis; Cell adhesion

Chromosomal Location of Human Ortholog: 16q22.1

Cellular Component: ruffle; protein complex; tight junction; apical part of cell; plasma membrane; cell cortex; nucleus; cytosol

Molecular Function: protein binding; Rho GTPase binding; protein kinase C binding; GTP-dependent protein binding; transcription factor binding

Biological Process: intercellular junction assembly and maintenance; viral reproduction; cell division; transforming growth factor beta receptor signaling pathway; intercellular junction maintenance; cell cycle