Species Reactivity
Human
Specificity
Detects human Granzyme B in direct ELISAs and Western blots. Does not cross-react with recombinant human (rh) Granzyme A, rhGranzyme H, recombinant mouse (rm) Granzyme B, rmGranzyme C, rmGranzyme D, or rmGranzyme G.
Source
Monoclonal Mouse IgG 2A Clone # 351927
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Granzyme B
Gly19-Tyr247
Accession # P10144Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Phycoerythrin
Applications
Recommended
ConcentrationSample
Intracellular Staining by Flow Cytometry
10 µL/10 6 cells
See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. are available in the Technical Information section on our website.
Data Examples
Intracellular Staining by Flow Cytometry | Detection of Granzyme B in NK‑92 Human Cell Line by Flow Cytometry. NK‑92 human natural killer lymphoma cell line was stained with Mouse Anti-Human Granzyme B PE‑conjugated Monoclonal Antibody (Catalog # IC2906P, filled histogram) or isotype control antibody (Catalog # , open histogram). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # ) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # ). View our protocol for . |
Preparation and Storage
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: Granzyme B
Granzyme B is a member of the Granzyme family of the serine proteases found specifically in the cytotoxic granules of Cytotoxic T Lymphocytes (CTL) and Natural Killer (NK) cells (1, 2). Granzyme B plays an essential role in granule-mediated apoptosis and may have additional roles in rheumatoid arthritis and in bacterial and viral infections (3). It activates various Caspases and cleaves proteins such as Aggrecan (3). Human Granzyme B is synthesized as a 247 amino acid (aa) precursor with a signal peptide (aa 1-18), a pro peptide (aa 19-20), and a mature chain (aa 21-247) (4-6). The recombinant human (rh) Granzyme B consisting of aa 19-247 was expressed and purified. After being activated by active Cathepsin C, rhGranzyme B cleaves a thioester substrate described previously (3).
References:
Kam, C-M. et al. (2000) Biochim. Biophys. Acta 1477:307.
Smyth, M.J. et al. (1996) J. Leukoc. Biol. 60:555.
Froelich, C.J. (2004) in Handbook of Proteolytic Enzymes, Barrett, A.J. et al., eds., pp. 1549 - 1552.
Schmid, J. and C. Weissman (1987) J. Immunol. 139:250.
Caputo, A. et al. (1988) J. Biol. Chem. 263:6363.
Trapani, J.A. et al. (1988) Proc. Natl. Acad. Sci. USA 85:6924.
Entrez Gene IDs:
3002 (Human); 14939 (Mouse)
Alternate Names:
CSPB; CTLA-1; CTSGL1; Fragmentin-2; Granzyme B; Granzyme-2; GRB; GrzB; GZMB; HLP; SECT
