Detects human Granzyme B in direct ELISAs and Western blots. In direct ELISAs, approximately 25% cross‑reactivity with recombinant human Granzyme H is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Scientific Data Images for Human Granzyme B Antibody

Detection of Human Granzyme B by Western Blot.

Western blot shows lysates of NK-92 human natural killer lymphoma cell line. PVDF membrane was probed with 0.25 µg/mL of Goat Anti-Human Granzyme B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2906) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Granzyme B at approximately 32-35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Human Granzyme B by Simple Western^TM.

Simple Western lane view shows lysates of NK-92 human natural killer lymphoma cell line, loaded at 0.2 mg/mL. A specific band was detected for Granzyme B at approximately 42 kDa (as indicated) using 10 µg/mL of Goat Anti-Human Granzyme B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2906) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Detection of Granzyme B in human tonsil.

Granzyme B was detected in immersion fixed paraffin-embedded sections of human tonsil using Goat Anti-Human Granzyme B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2906) at 1 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Goat IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC004). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in lymphocytes. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Applications for Human Granzyme B Antibody

Application

Recommended Usage

Immunohistochemistry

1-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human tonsil

Simple Western

10 µg/mL
Sample: NK‑92 human natural killer lymphoma cell line

Western Blot

0.25 µg/mL
Sample: NK‑92 human natural killer lymphoma cell line

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 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: 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 precursor (247 residues) with a signal peptide (residues 1‑18), a pro peptide (residues 19‑20), and a mature chain (residues 21‑247) (4‑6).

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.

Alternate Names

CGL-1, CGL1, CSPB, CTLA-1, CTLA1, CTSGL1, Fragmentin-2, Granzyme-2, GRB, GrzB, GZMB, HLP, SECT

Entrez Gene IDs

3002 (Human); 14939 (Mouse)

Gene Symbol

GZMB

UniProt

P10144

Additional Granzyme B Products

Product Documents for Human Granzyme B Antibody

Product Datasheets

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COA

SDS

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Product Specific Notices for Human Granzyme B Antibody

For research use only

Citations
Reviews

Human Granzyme B Antibody

R&D Systems, part of Bio-Techne | Catalog # AF2906

Key Product Details

Species Reactivity

Validated:

Cited:

Applications