Invitrogen™ Granzyme K Monoclonal Antibody (G3H69), eFluor™ 660, eBioscience™

Description

Description: This G3H69 monoclonal antibody reacts with human Granzyme K. Granzyme K is one of five granzyme serine proteases that have been indentified in humans. These proteins are expressed in the granules of NK cells and cytotoxic T cells, and are critical for the induction of target cell apoptosis through the cleavage of intracellular substrates. Granzyme A and Granzyme K are both tryptases and appear to show overlapping, though not identical, substrate specificity. This functional similarity is believed to account for the minimal decrease in cytotoxicity of Granzyme A-deficient CTLs. Applications Reported: This G3H69 antibody has been reported for use in intracellular staining followed by flow cytometric analysis. Applications Tested: This G3H69 antibody has been pre-titrated and tested by intracellular staining followed by flow cytometric analysis. This can be used at 5 μL (0.03 μg) per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. eFluor® 660 is a replacement for Alexa Fluor® 647. eFluor® 660 emits at 659 nm and is excited with the red laser (633 nm). Please make sure that your instrument is capable of detecting this fluorochome. Excitation: 633-647 nm; Emission: 668 nm; Laser: Red Laser. Filtration: 0.2 μm post-manufacturing filtered.

Granzyme K (GrK) belongs to a family of trypsin-like serine proteases localised in the cytotoxic granules of activated T cells and NK cells. It encodes a 28 kDa serine protease whose gene is located on chromosome 5q11-12 close to the granzyme A-encoding gene. Like granzyme A, it has a trypsin-like specifity cleaving at the basic residues arginine and lysine. Granzyme K triggers rapid cell death independently of caspase activation with single-stranded DNA nicks and is primarily expressed in thymus, lung, spleen and peripheral blood leukocytes.