Frizzled 9 (FZD9) Antibody – Rabbit Polyclonal

Members of the 'frizzled' gene family encode 7-transmembrane domain proteins that are receptors for Wnt signaling proteins. The FZD9 gene is located within the Williams syndrome common deletion region of chromosome 7, and heterozygous deletion of the FZD9 gene may contribute to the Williams syndrome phenotype. FZD9 is expressed predominantly in brain, testis, eye, skeletal muscle, and kidney. [provided by RefSeq, Jul 2008]

FZD9: Receptor for Wnt proteins. Most of frizzled receptors are coupled to the beta-catenin canonical signaling pathway, which leads to the activation of disheveled proteins, inhibition of GSK- 3 kinase, nuclear accumulation of beta-catenin and activation of Wnt target genes. A second signaling pathway involving PKC and calcium fluxes has been seen for some family members, but it is not yet clear if it represents a distinct pathway or if it can be integrated in the canonical pathway, as PKC seems to be required for Wnt-mediated inactivation of GSK-3 kinase. Both pathways seem to involve interactions with G-proteins. May be involved in transduction and intercellular transmission of polarity information during tissue morphogenesis and/or in differentiated tissues. Belongs to the G-protein coupled receptor Fz/Smo family.

Protein type: GPCR, Fz/Smo family; Receptor, GPCR; Membrane protein, integral; Membrane protein, multi-pass

Chromosomal Location of Human Ortholog: 7q11.23

Cellular Component: cell surface; cytoplasm; filopodium membrane; integral to membrane; perinuclear region of cytoplasm; plasma membrane

Molecular Function: G-protein coupled receptor activity; protein heterodimerization activity; protein homodimerization activity; Wnt receptor activity; Wnt-protein binding

Biological Process: B cell differentiation; G-protein coupled receptor protein signaling pathway; learning and/or memory; nervous system development; neuroblast proliferation; Wnt receptor signaling pathway through beta-catenin