96 Tests PN: A117329


45x Ab-conjugated beads (S5P12- Human Granzyme A Ab-bead). PN: A117329A. One vial containing 100 µL of anti-human Granzyme A conjugated to AimPlex Bead S5P12.

25x Biotin-detection Ab (Human Granzyme A Biotin-dAb). PN: A117329B. One vial containing 100 µL of biotinylated anti-Human Granzyme A.

Lyophilized Standard Mix - Human Granzyme A. PN: A117329S. One vial containing lyophilized Granzyme A.

Application: Optimal antibody pair and antigen standard for assaying human Human Granzyme A/GZMA/CTLA3. To be used in conjunction with the AimPlex NR Basic Kit (PN: P100001) and a diluent kit. Refer to the AimPlex Multiplex Immunoassay User Manual and kit inserts for the assay procedure.

Storage:  2-8 C in the dark.

Important: Sodium azide forms explosive compounds with heavy metals. These products contain <0.05% (w/w) azide which with repeated contact with lead and copper commonly found in plumbing drains may result in the buildup of shock sensitive compounds. Dispose in accordance with regulations from your institute.

For Research Use Only.  Not for use in diagnostic procedures.

Assay Specifications:

  • Sample types: Cell culture supernatant, serum, plasma, bodily fluid and tissue/cell lysate

  • Sensitivity (LOD): < 15 pg/mL

  • Quantitation range:

  • LLOQ: < 30 pg/mL

  • ULOQ: > 5,000 pg/mL

  • Standard dose recovery: 70-130%

  • Intra-assay CV: < 10%

  • Inter-assay CV: < 20%

  • Sample volume: 15 µL/test


Granzyme A (GZMA or CTLA3) is a 28 kD disulfide-linked homodimeric protein and the most abundant of the proteases occurring in CTL granules. It is homologous to other serine esterases, including other granyzmes, mast cell proteases, and neutrophil cathepsins. Granzyme B is thought to be a rapidly-acting apoptotic enzyme, while Granzyme A is slow acting. Cytolytic T lymphocytes (CTL) and natural killer (NK) cells share the remarkable ability to recognize, bind, and lyse specific target cells. They are thought to protect their host by lysing cells bearing on their surface 'non-self' antigens, usually peptides or proteins resulting from infection by intracellular pathogens. The protein described here is a T cell- and natural killer cell-specific serine protease that may function as a common component necessary for lysis of target cells by cytotoxic T lymphocytes and natural killer cells. Diseases associated with GZMA include Chilblain Lupus.


  1. Hameed A, Lowrey DM, Lichtenheld M, Podack ER (Nov 1988). "Characterization of three serine esterases isolated from human IL-2 activated killer cells". J Immunol. 141 (9): 3142–7. PMID 3262682.

  2. Masson D, Zamai M, Tschopp J (Dec 1986). "Identification of granzyme A isolated from cytotoxic T-lymphocyte-granules as one of the proteases encoded by CTL-specific genes". FEBS Lett. 208 (1): 84–8. doi:10.1016/0014-5793(86)81537-X. PMID 3533635.

  3. "Entrez Gene: GZMA granzyme A (granzyme 1, cytotoxic T-lymphocyte-associated serine esterase 3)".