Stanniocalcin-2 is a protein that in humans is encoded by the STC2gene.[1][2][3]
This gene encodes a secreted, homodimeric glycoprotein that is expressed in a wide variety of tissues and may have autocrine or paracrine functions. The encoded protein has 10 of its 15 cysteine residues conserved among stanniocalcin family members and is phosphorylated by casein kinase 2 exclusively on its serine residues. Its C-terminus contains a cluster of histidine residues which may interact with metal ions. The protein may play a role in the regulation of renal and intestinal calcium and phosphate transport, cell metabolism, or cellular calcium/phosphate homeostasis. Constitutive overexpression of human stanniocalcin 2 in mice resulted in pre- and postnatal growth restriction, reduced bone and skeletal muscle growth, and organomegaly. Expression of this gene is induced by estrogen and altered in some breast cancers.[3]
References
↑Chang AC, Reddel RR (Nov 1998). "Identification of a second stanniocalcin cDNA in mouse and human: stanniocalcin 2". Mol Cell Endocrinol. 141 (1–2): 95–9. doi:10.1016/S0303-7207(98)00097-5. PMID9723890.
↑Ishibashi K, Miyamoto K, Taketani Y, Morita K, Takeda E, Sasaki S, Imai M (Nov 1998). "Molecular cloning of a second human stanniocalcin homologue (STC2)". Biochem Biophys Res Commun. 250 (2): 252–8. doi:10.1006/bbrc.1998.9300. PMID9753616.
Moore EE, Kuestner RE, Conklin DC, et al. (1999). "Stanniocalcin 2: characterization of the protein and its localization to human pancreatic alpha cells". Horm. Metab. Res. 31 (7): 406–14. doi:10.1055/s-2007-978764. PMID10450831.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Gagliardi AD, Kuo EY, Raulic S, et al. (2005). "Human stanniocalcin-2 exhibits potent growth-suppressive properties in transgenic mice independently of growth hormone and IGFs". Am. J. Physiol. Endocrinol. Metab. 288 (1): E92–105. doi:10.1152/ajpendo.00268.2004. PMID15367391.
Luo CW, Pisarska MD, Hsueh AJ (2005). "Identification of a stanniocalcin paralog, stanniocalcin-2, in fish and the paracrine actions of stanniocalcin-2 in the mammalian ovary". Endocrinology. 146 (1): 469–76. doi:10.1210/en.2004-1197. PMID15486227.
Stelzl U, Worm U, Lalowski M, et al. (2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. PMID16169070.
Otsuki T, Ota T, Nishikawa T, et al. (2007). "Signal sequence and keyword trap in silico for selection of full-length human cDNAs encoding secretion or membrane proteins from oligo-capped cDNA libraries". DNA Res. 12 (2): 117–26. doi:10.1093/dnares/12.2.117. PMID16303743.
Esseghir S, Kennedy A, Seedhar P, et al. (2007). "Identification of NTN4, TRA1, and STC2 as prognostic markers in breast cancer in a screen for signal sequence encoding proteins". Clin. Cancer Res. 13 (11): 3164–73. doi:10.1158/1078-0432.CCR-07-0224. PMID17545519.
Ichikawa T, Horie-Inoue K, Ikeda K, et al. (2007). "Vitamin K2 induces phosphorylation of protein kinase A and expression of novel target genes in osteoblastic cells". J. Mol. Endocrinol. 39 (4): 239–47. doi:10.1677/JME-07-0048. PMID17909264.