Transient receptor potential cation channel subfamily V member 6
蛋白功能
Expressed at high levels in the gastrointestinal tract, including esophagus, stomach, duodenum, jejunum, ileum and colon, and in pancreas, placenta, prostate and salivary gland. Expressed at moderate levels in liver, kidney and testis. Expressed in trophoblasts of placenta villus trees (at protein level)(PubMed:23612980). Expressed in locally advanced prostate cancer, metastatic and androgen-insensitive prostatic lesions but not detected in healthy prostate tissue and benign prostatic hyperplasia. .
Tissue Specificity
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 (By similarity). .
Sequence Similarities
Transient receptor potential cation channel subfamily V member 6;TrpV6;CaT-like;CaT-L;Calcium transport protein 1;CaT1;Epithelial calcium channel 2;ECaC2;TRPV6;ECAC2;
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.