Detection of Mouse CRACC/SLAMF7 by Western Blot. Western blot shows lysates of human peripheral blood mononuclear cells. PVDF membrane was probed with 2 µg/mL of Rat Anti-Mouse CRACC/SLAMF7 Monoclonal Antibody (Catalog # MAB4628) followed by HRP-conjugated Anti-Rat IgG Secondary Antibody (Catalog # HAF005). A specific band was detected for CRACC/SLAMF7 at approximately 33 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
CD2-like receptor activating cytotoxic cells (CRACC), also known as CS1, novel Ly9, SLAMF7, and CD319, is a 66 kDa type I transmembrane glycoprotein in the SLAM subgroup of the CD2 family (1). Mature mouse CRACC consists of a 202 amino acid (aa) extracellular domain (ECD) with one Ig‑like V-set domain and one Ig‑like C2-set domain, a 21 aa transmembrane segment, and an 88 aa cytoplasmic domain with two immunoreceptor tyrosine-based switch motifs ITSMs (2, 3). Within the ECD, mouse CRACC shares 53% aa sequence identity with human CRACC. It shares 19%‑35% aa sequence identity with comparable regions of other mouse SLAM proteins including 2B4, BLAME, CD2F-10, CD84, CD229, NTB-A, and SLAM/CD150. Additional isoforms of mouse CRACC are distinguished by deletions and/or substitutions in their cytoplasmic domains. CRACC is expressed on the surface of NK cells, CD8+ T cells, activated B cells, and mature dendritic cells (4, 5). It interacts homophilically to induce NK, CTL, and B cell activation (4‑7). In human NK cells, activated CRACC transmits signals following association with the adaptor protein EAT-2 (8).
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Tovar, V. et al. (2002) Immunogenetics 54:394.
Murphy, J.J. et al. (2002) Biochem. J. 361:431.
Bouchon, A. et al. (2001) J. Immunol. 167:5517.
Lee, J.K. et al. (2007) J. Immunol. 179:4672.
Kumaresan, P.R. et al. (2002) Mol. Immunol. 39:1.
Stark, S. and C. Watzl (2006) Int. Immunol. 18:241.
Tassi, H. and M. Colonna (2005) J. Immunol. 175:7996.
Entrez Gene IDs:
57823 (Human); 75345 (Mouse)
19A; CD2 subset 1; CD2-like receptor activating cytotoxic cells; CD319 antigen; CD319; CRACC; CRACCCD2-like receptor-activating cytotoxic cells; CS119A24 protein; Membrane protein FOAP-12; novel LY9 (lymphocyte antigen 9) like protein; Novel Ly9; Protein 19A; SLAM family member 7; SLAMF7
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