Human CellExp™ Sclerostin, human recombinant

Biomolecule/Target: SOST

Synonyms: SOST, VBCH

Alternates names: SOST, VBCH

Taglines: Negative regulator of bone growth

Taglines: USA

Country of Animal Origin: USA

NCBI Gene ID #.: 50964

NCBI Gene Symbol: SOST

Gene Source: Human

Accession #: Q9BQB4

Recombinant: Yes

Source: HEK 293 cells

Purity by SDS-PAGE #: > 95%

Assay: SDS-PAGE

Purity: N/A

Assay #2: N/A

Endotoxin Level: < 1.0 EU per/μg

Activity (Specifications/test method): N/A

Biological activity: N/A

Results: N/A

Binding Capacity: N/A

Unit Definition: N/A

Molecular Weight: 22.5 kDa

Concentration: N/A

Appearance: Lyophilized

Physical form description: Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Trehalose is added as protectant before lyophilization.

Reconstitution Instructions: Reconstitute in sterile deionized water to the desired protein concentration.

Background Information: Sclerostin (SOST) is also known as Sclerosteosis, VBCH, is a secreted glycoprotein with a signal peptide for secretion and a C-terminal cysteine knot-like (CTCK) domain and belongs to the Cerberus/DAN family of bone morphogenetic protein (BMP) antagonists. Sclerostin is produced by the osteocyte and has anti-anabolic effects on bone formation. More recently Sclerostin has been identified as binding to LRP5/6 receptors and inhibiting the Wnt signalling pathway. Wnt pathway inhibition under these circumstances is antagonistic to bone formation (meaning Sclerostin antagonizes bone formation). It has been shown that SOST binds BMP-5, -6, and -7 with high affinity and BMP-2 and -4 with low affinity. Sclerostin production by osteocytes is inhibited by parathyroid hormone, mechanical loading and cytokines including oncostatin M, cardiotrophin-1 and leukemia inhibitory factor. Sclerostin production is increased by calcitonin. Thus, osteoblast activity is self regulated by a negative feedback system. Mutations of Sclerostin is associated with the syndrome Sclerosteosis, and reduced sclerostin expression results in a milder form of the disorder called van Buchem disease.

Amino acid sequence: N/A

Handling: Centrifuge the vial prior to opening.

Usage: For Research Use Only! Not to be used in humans