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Description: The monoclonal antibody 162 recognizes CRACC (CD2 like receptor for activating cytotoxic cells) also known as CD319 and CS1. It is a member of the SLAM receptor family. CRACC is a 66 kDa glycosylated transmembrane protein which contains a cytoplasmic ITSM domain (Immunoreceptor Tyrosine-based Switch Motif). It is this domain, found in other proteins such as CD244 and NTB-A, that interacts with SH2 containing proteins such as SAP. Interestingly the ITSM domain in CRACC is SAP independent. Instead EAT-2 acts as the signaling molecule for CRACC. This has profound impact for patients with X-linked lymphoproliferative disease (contains a SAP mutation). It should be noted that a splice variant has been reported which deletes the ITSM domain.
Applications Reported: This 162 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This 162 antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at 5 µL (0.5 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.
PerCP-eFluor® 710 emits at 710 nm and is excited with the blue laser (488 nm); it can be used in place of PerCP-Cyanine5.5. We recommend using a 710/50 bandpass filter, however, the 695/40 bandpass filter is an acceptable alternative. Please make sure that your instrument is capable of detecting this fluorochrome.
Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.
Fixation: Samples can be stored in IC Fixation Buffer (cat. 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (cat. 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.
Excitation: 488 nm; Emission: 710 nm; Laser: Blue Laser.
Filtration: 0.2 µm post-manufacturing filtered.
SLAMF7 contains one Ig-like C2-type (immunoglobulin-like) domain. Isoform 1 mediates NK cell activation through a SAP-independent extracellular signal-regulated ERK-mediated pathway. It may play a role in lymphocyte adhesion. Isoform 3 does not mediate any activation. SAP can bind the cytoplasmic tail of isoform 1 when phosphorylated in the presence of Fyn (in vitro). SLAMF7 is expressed in spleen, lymph node, peripheral blood leukocytes, bone marrow, small intestine, stomach, appendix, lung and trachea. Expression was detected in NK cells, activated B-cells, NK-cell line but not in promyelocytic, B-, or T-cell lines. The isoform 3 is expressed at much lower level than isoform 1. There are three named isoforms.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 19A24 protein; CD2 subset 1; CD2-like receptor activating cytotoxic cells; CD2-like receptor-activating cytotoxic cells; CD319; CRACC; Membrane protein FOAP-12; Novel Ly9; novel LY9 (lymphocyte antigen 9) like protein; Protein 19A; SLAM family member 7
Gene Aliases: 19A; CD319; CRACC; CS1; SLAMF7; UNQ576/PRO1138
UniProt ID: (Human) Q9NQ25
Entrez Gene ID: (Human) 57823
Molecular Function: immunoglobulin receptor superfamily