Cystatin C human
SIGMA/H5041 - recombinant, expressed in HEK 293 cells, HumanKine®, suitable for cell culture
MDL Number: MFCD00163390
Product Type: Chemical
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| assay | ≥95% (SDS-PAGE) |
| biological source | human |
| form | lyophilized powder |
| impurities | ≤1 EU/mg |
| mol wt | dimer 12-13 kDa (non-glycosylated) |
| packaging | pkg of 10 μg |
| potency | ≤5 μg per mL EC50 |
| quality | endotoxin tested |
| Quality Level | 100  |
| recombinant | expressed in HEK 293 cells |
| storage condition | avoid repeated freeze/thaw cycles |
| storage temp. | −20°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P01034  |
| Analysis Note: | The inhibitory function of cystatin c on papain’s protease activity was measured by a colorimetric assay using |
| Application: | Cystatin C human has been used as a standard in western blot assay. It has also been used to study its effect on the endopeptidase activity of activated Trichobilharzia regenti isoform of cathepsin B1 peptidase (TrCB1). |
| Biochem/physiol Actions: | Cystatin C is an inhibitor of cysteine proteases including cathepsin B which has been identified as the most important β-amyloid-degrading enzyme. Measurement of cystatin C in serum is replacing creatinine as an indicator of kidney function (glomerular filtration rate, GFR). Studies show its role in predicting new-onset or deteriorating cardiovascular disease. It also seems to play a role in brain disorders involving amyloid, such as Alzheimer′s disease. Cystatin C inhibits transforming growth factor β signaling in normal and cancer cells. |
| General description: | HumanKine human Cystatin C is expressed as a non-glycosylated monomer in human HEK 293 cells. Cystatin C belongs to the cystatin superfamily. Two isoforms (pI = 7.8, 9.2) of native Cystatin C are found in human urine differentiated by the elimination of small basic peptides or amino acids from the N-terminal end of the protein. This protein is coded by a housekeeping gene, CST3 located on human chromosome 20p11.21 and is generated by nucleated cells. |
| Legal Information: | HumanKine is a registered trademark of Proteintech Group, Inc. and Humanzyme, Inc |
| Packaging: | 10 μg in poly bottle |
| Physical form: | Lyophilized from a 0.2 μm filtered solution of 1×PBS |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥95% (SDS-PAGE) |
| Storage Temp. | −20°C |
| UNSPSC | 12352202 |