Description
Product Characteristics: Function: Calcium selective cation channel probably involved in Ca(2+) uptake in various tissues, including Ca(2+) reabsorption in intestine. The channel is activated by low internal calcium level, probably including intracellular calcium store depletion, and the current exhibits an inward rectification. Inactivation includes both, a rapid Ca(2+)-dependent and a slower Ca(2+)-calmodulin-dependent mechanism, the latter may be regulated by phosphorylation. In vitro, is slowly inhibited by Mg(2+) in a voltage-independent manner. Heteromeric assembly with TRPV5 seems to modify channel properties. TRPV5-TRPV6 heteromultimeric concatemers exhibit voltage-dependent gating.
Subunit: Homotetramer and probably heterotetramer with TRPV5. Interacts with TRPV5, heterotetramer.
Subcellular location: Cell membrane, Multi-pass membrane protein.
Tissue specificity: Expressed in duodenum, proximal jejunum, cecum, and colon. SIMILARITY: Belongs to the transient receptor family, TrpV subfamily. SIMILARITY: Contains 5 ANK repeats. Also known as: Transient receptor potential cation channel subfamily V member 6, TrpV6, Epithelial calcium channel 2, ECaC2, Calcium transport protein 1, CaT1, Trpv6 transient receptor potential cation channel, subfamily V, member 6, CaT1, Ecac2, Otrpc3.
Target Information: This gene encodes a member of the vanilloid family of transient receptor potential (TRP) calcium channel proteins. Proteins in this TRP family have an N-terminal ankyrin repeat domain, which is required for channel assembly and regulation. [provided by RefSeq, Nov 2011]