Human Cystatin B Alexa Fluor™ Plus 488-conjugated Antibody
R&D Systems, part of Bio-Techne | Catalog # FAB1408AFP488
Conjugate
Catalog #
Key Product Details
Species Reactivity
Human
Applications
Knockout Validated, Western Blot, Neutralization, Immunoprecipitation
Label
Alexa Fluor Plus 488 (Excitation = 493 nm, Emission = 518 nm)
Antibody Source
Monoclonal Mouse IgG2B Clone # 225228
Product Specifications
Immunogen
E. coli-derived recombinant human Cystatin B
Specificity
Detects human Cystatin B in Western blots and direct ELISAs. In Western blots, less than 5% cross-reactivity with recombinant human (rh) Cystatins A and S, recombinant mouse Cystatin B, rhFetuin A, and rhHPRG (Histidine-Proline-Rich Glycoprotein) is observed and approximately 5% to 10% cross-reactivity with rhCystatins C, D, E/M, SA, SN, and rhFetuin B is observed.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG2B
Applications
Application
Recommended Usage
Immunoprecipitation
Optimal dilution of this antibody should be experimentally determined.
Knockout Validated
Optimal dilution of this antibody should be experimentally determined.
Western Blot
Optimal dilution of this antibody should be experimentally determined.
Neutralization
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
Background: Cystatin B
Cystatin B, also called stefin B or liver thiol proteinase inhibitor, is a member of family 1 of the cystatin superfamily (1). Like Cystatin A, it is an intracellular inhibitor regulating the activities of cysteine proteases of the papain family such as cathepsins B, H and L (2). Mutations in the Cystatin B gene is the cause of progressive myoclonus epilepsy (EPM1) (3). Because of its expression patterns, Cystatin B can be used as a marker for certain cancers, such as glioblastoma tumors (4). It readily forms amyloid fibrils in vitro (5). The human Cystatin B consists of 98 amino acid residues (3).
References
- Abrahamson, M. (1994) Methods Enzymol. 244:685.
- Pol, E. and I. Bjork (1999) Biochemistry 38:10519.
- Pennacchio, L.A. et al. (1996) Science 271:1731.
- Zhang, R. et al. (2003) Glia 42:194.
- Zerovnik, E. et al. (2002) Biochim. Biophys. Acta 1594:1.
Alternate Names
CSTB, Stefin B
Gene Symbol
CSTB
UniProt
Additional Cystatin B Products
Product Specific Notices
This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
For research use only
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