SOST, also known as Sclerostin, is a member of the cerberus/DAN family. This protein is produced primarily by the osteocyte but is also expressed in other tissues, and has anti-anabolic effects on bone formation. It was originally believed to be a nonclassical bone morphogenetic protein (BMP) antagonist. More recently, sclerostin has been identified as binding to LRP5/6 receptors and inhibiting the Wnt signaling pathway. The inhibition of the Wnt pathway leads to decreased bone formation. Although the underlying mechanisms are unclear, it is believed that the antagonism of BMP-induced bone formation by sclerostin is mediated by Wnt signaling, but not BMP signaling pathways. Mutations in the gene that encodes the sclerostin protein are associated with disorders associated with high bone mass, sclerosteosis and van Buchem disease. Recombinant protein corresponding to aa21-211 from mouse Sclerostin, fused to His-Tag at C-terminal, expressed in HEK293 cells. Molecular Weight: ~21.9kD Amino Acid Sequence: QGWQAFRNDA TEVIPGLGEY PEPPPENNQT MNRAENGGRP PHHPYDAKDV SEYSCRELHY TRFLTDGPCR SAKPVTELVC SGQCGPARLL PNAIGRVKWW RPNGPDFRCI PDRYRAQRVQ LLCPGGAAPR SRKVRLVASC KCKRLTRFHN QSELKDFGPE TARPQKGRKP RPGARGAKAN QAELENAY Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.