Detects human Cystatin A in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human (rh) Cystatins B, C, D, E/M, F, S, SA, rhFetuin A, rhFetuin B, rhHPRG, rhKininogen, or rhKininostatin is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2A

Scientific Data Images for Human Cystatin A Antibody

Detection of Human Cystatin A by Western Blot.

Western Blot shows lysates of THP-1 human acute monocytic leukemia cell line. PVDF membrane was probed with 2 µg/ml of Mouse Anti-Human Cystatin A Monoclonal Antibody (Catalog # MAB1407) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Cystatin A at approximately 11 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Applications for Human Cystatin A Antibody

Application

Recommended Usage

Immunoprecipitation

25 µg/mL
Sample: Conditioned cell culture medium spiked with Recombinant Human Cystatin A (Catalog # 1407-PI), see our available Western blot detection antibodies

Western Blot

2 µg/mL
Sample: THP-1 human acute monocytic leukemia cell line

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Cystatin A

Cystatin A, also called stefin A, Cystatin AS or keratolinin, is a member of family 1 of the cystatin superfamily (1, 2). Like Cystatin B, it is an intracellular inhibitor regulating the activities of cysteine proteases of the papain family such as cathepsins B, H and L (3). For example, immunohistochemical analysis of Cystatin A and cathepsin L is a useful indicator for malignancy in human epidermal keratinocytes (4). The ratio of cathepsin B and Cystatin A can be used in the differential diagnosis and treatment of patients with prostate carcinoma (5). The human Cystatin A consists of 98 amino acids (1).

References

Kartasova, T. et al. (1987) Nucleic Acids Res. 15:5945.
Abrahamson, M. (1994) Methods Enzymol. 244:685.
Jenko, S. et al. (2003) J. Mol. Biol. 326:875.
Palungwachira, P. et al. (2002) J. Dermatol. 29:573.
Sinha, A.A. et al. (2002) Cancer 94:3141.

Alternate Names

AREI, CSTA, Stefin A, STF1, STFA

Entrez Gene IDs

1475 (Human)

Gene Symbol

CSTA

UniProt

P01040

Additional Cystatin A Products

Product Documents for Human Cystatin A Antibody

Product Datasheets

Download Product Datasheets

COA

SDS

Download SDS

Product Specific Notices for Human Cystatin A Antibody

For research use only

Citations
Reviews