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Recombinant Rat Cystatin C Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 6154-PI

R&D Systems, part of Bio-Techne
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6154-PI-010

Key Product Details

Source

NS0

Accession #

Conjugate

Unconjugated

Applications

Inhibition Activity

Product Specifications

Source

Mouse myeloma cell line, NS0-derived rat Cystatin C protein
Met1-Ala140, with a C-terminal 6-His tag

Purity

>90%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain at 5 μg per lane.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Gly21

Predicted Molecular Mass

14 kDa

SDS-PAGE

15-25 kDa, reducing conditions

Activity

Measured by its ability to inhibit papain cleavage of a fluorogenic peptide substrate Z-FR-AMC (Catalog # ES009).
The IC50 is <15 nM, as measured under the described conditions.

Formulation, Preparation and Storage

6154-PI
Formulation Supplied as a 0.2 μm filtered solution in HEPES and NaCl.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Background: Cystatin C

Cystatin C is a member of family 2 in the Cystatin superfamily (1). It is involved in processes such as tumor invasion and metastasis, inflammation and some neurological diseases. It inhibits many cysteine proteases such as papain and cathepsins B, H, K, L and S (2, 3). It is ubiquitous in human tissues and body fluids. A point mutation in the gene coding for the 120 amino acid mature Cystatin C causes a hereditary form of amyloid angiopathy in which the protein variant is deposited in the cerebral arteries, leading to fatal cerebral hemorrhage (4). Cystatin C may have additional clinical applications. For example, it is a good marker for glomerular filtration rate (5).

References

  1. Reed, C.H. (2000) British J. Biomed. Sci. 57:323.
  2. Janowski, R. et al. (2001) Nat. Struct. Biol. 8:316.
  3. Abrahamson, M. (1994) Methods Enzymol. 244:685.
  4. Abrahamson, M. et al. (1992) Hum. Genet. 89:377.
  5. Laterza, O.F. et al. (2002) Clin. Chem. 48:699.

Alternate Names

ARMD11, CST3, Gamma-trace, Neuroendocrine basic polypeptide, Post-gamma-globulin

Entrez Gene IDs

1471 (Human); 13010 (Mouse); 25307 (Rat)

Gene Symbol

CST3

UniProt

Additional Cystatin C Products

Product Documents for Recombinant Rat Cystatin C Protein, CF

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Rat Cystatin C Protein, CF

Coomassie is a registered trademark of Imperial Chemical Industries Ltd.

For research use only

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