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Functions as a calcium permeable cation channel involved in fluid-flow mechanosensation by the primary cilium in renal epithelium. Together with TRPV4, forms mechano- and thermosensitive channels in cilium (PubMed:18695040). PKD1 and PKD2 may function through a common signaling pathway that is necessary for normal tubulogenesis. Acts as a regulator of cilium length, together with PKD1. The dynamic control of cilium length is essential in the regulation of mechanotransductive signaling. The cilium length response creates a negative feedback loop whereby fluid shear-mediated deflection of the primary cilium, which decreases intracellular cAMP, leads to cilium shortening and thus decreases flow-induced signaling. Also involved in left/right axis specification downstream of nodal flow: forms a complex with PKD1L1 in cilia to facilitate flow detection in left/right patterning.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Autosomal dominant polycystic kidney disease type II protein; PC2; polycystic kidney disease 2 (autosomal dominant); Polycystic kidney disease 2 protein; Polycystin-2; Polycystwin; R48321; Transient receptor potential cation channel subfamily P member 2; transient receptor potential cation channel, subfamily P, member 2
Gene Aliases: APKD2; Pc-2; PC2; PKD2; PKD4; TRPP2
UniProt ID: (Human) Q13563
Entrez Gene ID: (Human) 5311
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