Entrez Summary: This gene encodes a member of the R-spondin family of proteins that share a common domain organization consisting of a signal peptide, cysteine-rich/furin-like domain, thrombospondin domain and a C-terminal basic region. The encoded protein may be involved in activation of Wnt/beta-catenin signaling pathways. Mutations in this gene are associated with anonychia congenital. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Sep 2009].
UniProt Summary: Activator of the canonical Wnt signaling pathway by acting as a ligand for LGR4-6 receptors. Upon binding to LGR4-6 (LGR4, LGR5 or LGR6), LGR4-6 associate with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes. Also regulates the canonical Wnt/beta-catenin-dependent pathway and non-canonical Wnt signaling by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. {ECO:0000269|PubMed:21727895, ECO:0000269|PubMed:21909076}.
Pfam DomainsGO Terms
Pfam Domains
No Pfam Domain information is available for this gene.
GO Terms
nail development
frizzled binding
positive regulation of canonical Wnt signaling pathway
heparin binding
positive regulation of Wnt signaling pathway
appendage development
limb development
regulation of canonical Wnt signaling pathway
Wnt signaling pathway
cell-cell signaling by wnt
regulation of Wnt signaling pathway
cell surface receptor signaling pathway involved in cell-cell signaling
cell-cell signaling
extracellular space
positive regulation of signal transduction
positive regulation of cell communication
positive regulation of signaling
extracellular region
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)