$5,928.00Catalog Number: PTN086-1mgSize: 1mg

CSTA Human

Cystatin-A Human Recombinant

Cystatin A Human Recombinant produced in E.Coli is a single, non-glycosylated, Polypeptide chain containing 98 amino acids and having a molecular mass of 11kDa.
The Cystatin A is purified by proprietary chromatographic techniques.

Accession

P01040

Amino acid sequence

The sequence of the first five N-terminal amino acids was determined and was found to be Met-Ile-Pro-Gly-Gly.

Biological Activity

The IC50 value is < 3.4 nM, as measured by its ability to inhibit papain cleavage of a fluorogenic peptide substrate.

Formulation

Cystatin A was lyophilized from a concentrated (1mg/ml) solution in 50mM Tris-HCl, pH 7.5 and 100mM NaCl.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Purity

Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Solubility

It is recommended to reconstitute the lyophilized Cystatin A in sterile 18MΩ-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Source

Escherichia Coli.

Stability

Lyophilized Cystatin A although stable at room temperature for 3 weeks, should be stored desiccated below -18oC. Upon reconstitution CSTA should be stored at 4oC between 2-7 days and for future use below -18oC.
Please prevent freeze-thaw cycles.

Synonyms

Cystatin-A, Cystatin-AS, Stefin-A, CSTA, STF1, STFA.

Quantity

$5,928.00

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