FETUIN A human
SIGMA/SRP3283 - recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE), ≥95% (HPLC)
Synonym: Alpha-
CAS Number: 9014-81-7
Product Type: Chemical
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| assay | ≥95% (HPLC) |
| ≥95% (SDS-PAGE) | |
| biological source | human |
| color | white to off-white |
| form | lyophilized |
| impurities | <0.1 EU/μg endotoxin, tested |
| mol wt | 45.0-55.0 kDa |
| packaging | pkg of 50 μg |
| potency | ≥100 nM |
| recombinant | expressed in HEK 293 cells |
| shipped in | wet ice |
| storage temp. | −20°C |
| UniProt accession no. | P02765   |
| Application: | FETUIN A human has been used to stimulate mRNA expression in human monocytic THP1 cells, human in vitro differentiated adipocytes and C57BL/6 mice. |
| Biochem/physiol Actions: | AHSG (α-2-HS-glycoprotein, also referred to as fetuin-A) is a major serum protein component that exerts various calcium dependent physiological activities, and can mediate growth signaling in certain tumor cells. It also can act as a natural antagonist against specific TGF-β (transforming growth factor β) and BMP (bone morphogenetic protein) signaling proteins. High levels of fetuin-A in the serum is associated with mild osteogenesis imperfecta. On the other hand, reduced levels are seen in Paget′s disease. It is predicted as a potential biomarker for the early diagnosis of hypopharyngeal squamous cell carcinoma. |
| General description: | The gene AHSG (α-2-HS-glycoprotein, also referred to as fetuin-A) is mapped to human chromosome 3q27. Fetuin A/AHSG is a human plasma glycoprotein belonging to the Cystatin family of proteases inhibitors. Fetuin A is highly expressed in embryonic cells and adult hepatocytes, and is expressed to a lesser extent in monocytes/macrophages. The protein has cystatin-like domains, a calcium phosphate-binding site and a TGF (transforming growth factor)-β cytokine-binding motif. Recombinant human fetuin-A is a heterodimeric protein containing a 282 amino acid A chain and a 27 amino acid B chain. Due to glycosylation, recombinant fetuin-A migrates at an apparent molecular weight of 45–55kDa by SDS-PAGE run under nonreducing conditions. |
| Physical form: | Lyophilized from 10 mM Sodium Phosphate, pH 7.8. |
| Preparation Note: | Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥95% (HPLC); ≥95% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |