Health / Medical Topics |
Stanniocalcin 2
Widely expressed in muscle and heart (strongest), pancreas, kidney, spleen, prostate, small intestine, colon, and peripheral leucocytes by human STC2 Gene (Stanniocalcin Family) at 5q35.2 encodes 302-aa Stanniocalcin 2, a constitutively secreted disulfide-linked homodimeric 32-kD protein that regulates calcium and phosphate homeostasis. STC2 shares 34% identity with STC1; human and mouse proteins are nearly 88% identical. A Cys-rich N-terminal region may mediate homodimerization. STC2 function on kidney phosphate transport appears to be opposite STC1. STC2 may be serine phosphorylated by a casein kinase-2 ecto-protein. STC2 is likely phosphorylated on serine 288. Phosphorylation may regulate calcium and phosphate homeostasis activity. (NCI Thesaurus)