Protein mom-5; Receptor for Wnt proteins. Most 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 (Probable). 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 (Probable). B [...]

Abnormal cell lineage protein 44; Ligand for members of the frizzled family of seven transmembrane receptors (By similarity). Affects male tail development, vulval precursor cell specification and egg laying. Involved in morphogenesis by influencing polarity of asymmetric cell divisions of the B, U, and F cells in the male, and the T cell in males and hermaphrodites. Controls spindle orientation in B-gamma cell division during male copulatory spicule development. Involved in specification of the P7.p lineage during vulval development. Has a role in providing polarity and default lin-17 [...]

Vang-like protein.

Axin-like protein pry-1; Works in parallel with axl-1 in negatively regulating bar-1 signaling in vulval precursor cells and Q neuroblasts. Inhibits Wnt signaling, which affects tissue specific expression of Hox genes, egl- 5, lin-39 and mab-5. This in turn affects QR (postembryonic neuroblast) cell migration, vulval cell fate specification, and the development of sensory structures by the seam cell lineage. Has a role in alae V cell patterning, ray formation in the male tail and axon guidance. Does not affect B cell polarity.

Protein Wnt-1; Ligand for members of the frizzled family of seven transmembrane receptors. Probable developmental protein. May be a signaling molecule which affects the development of discrete regions of tissues. Is likely to signal over only few cell diameters. Binds receptor tyrosine kinase cam-1. Together with Wnt ligand cwn-2, regulates the migration of CAN, ALM, BDU and HSN neurons during embryogenesis, the migration of QL and QR neuroblast descendants during larval development, and polarity of ALM neurons. Also acts with the Wnt ligand egl-20 to direct HSN neuron migration. Acts [...]

Protein mom-2; Ligand for members of the frizzled family of seven transmembrane receptors. Required in embryonic development for endoderm specification and the correct positioning and orientation of the mitotic spindles and division planes in blastomere cells. Involved in cleavage axis determination. Binds to receptor tyrosine kinase cam-1. Together with wnt ligand lin-44, plays a role in controlling vulva precursor cell P7.p lineage orientation during vulva development, probably by acting as a ligand for tyrosine kinase receptor lin-18. May act redundantly with other Wnt ligands such [...]

Protein Wnt-2; Ligand for members of the frizzled family of seven transmembrane receptors. Probable developmental protein. May be a signaling molecule which affects the development of discrete regions of tissues. Is likely to signal over only few cell diameters. Involved in the correct positioning of the developing nerve ring and in axon guidance of SIA and SIB neurons, probably by binding to tyrosine kinase receptor cam-1. In addition, regulates the positioning of some head neuronal cells, muscle arms associated with the nerve ring and the excretory pore. Together with Wnt ligand cwn- [...]

Axin-like protein 1; Works in parallel with pry-1 in negatively regulating bar-1 signaling in vulval precursor cells and Q neuroblasts. Shown to have a role in excretory cell development.

Armadillo repeat-containing protein wrm-1; Antagonistic role in the Wnt signaling pathway that operates in embryogenesis. When located at the cortex it has been shown to inhibit Wnt signaling during asymmetric cell division but when relocated to the nucleus it shows positive regulation. Has a role in blastomere signaling during endoderm specification. Activates lit-1- dependent kinase activity. Wrm-1/lit-1 complex promotes phosphorylation, down-regulation and subcellular relocation of pop-1. Can substitute for bar-1 indicating functional redundancy. Appears to have a role in centrosome [...]