"CSTA" Related Products


Recombinant Human CSTA protein, His-tagged

Cat.No.: CSTA-203H
Product Overview: Recombinant human CSTA protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.
Description: CSTA, also known as Stefin A, is thiol protease inhibitors that form complexes with papain and the cathepsins B, H and L. The protein is one of the precursor proteins of the cornified cell envelope in keratinocytes and plays a role in epidermal development and maintenance. CSTA is thought to be a tumor suppressor, since an inverse correlation seems to exist between the level of CSTA and tumor progression, in several malignancies
Source: E.coli
Species: Human
Tag: His
Form: Liquid. In 20 mM Tris-HCl buffer (pH8.0) containing 1mM DTT, 10% glycerol
Bio-activity: The IC50 value is < 1.0nM. The inhibitory function of Cystatin A on protease activity of papain was measured by a fluorometric assay using Z-FR-AMC at pH 7.5 at 25C.
Molecular Mass: 13.1 kDa (118aa) confirmed by MALDI-TOF
Purity: > 95% by SDS - PAGE
Storage: Can be stored at +4 centigrade short term (1-2 weeks). For long term storage, aliquot and store at -20 centigrade or -70 centigrade. Avoid repeated freezing and thawing cycles.
Concentration: 1 mg/ml (determined by BCA assay)
Gene Name: CSTA cystatin A (stefin A) [ Homo sapiens ]
Official Symbol: CSTA
Synonyms: CSTA; cystatin A (stefin A); STF1; STFA; CSTA; Cystatin-A; Cystatin-AS; cystatin A; cystatin AS; stefin A
Gene ID: 1475
mRNA Refseq: NM_005213
Protein Refseq: NP_005204
MIM: 184600
UniProt ID: P01040
Chromosome Location: 3q21
Function: cysteine-type endopeptidase inhibitor activity; protease binding; protein binding, bridging; structural molecule activity

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