Human CD48/SLAMF2 Antibody

Name: Human CD48/SLAMF2 Antibody
Brand: R&D Systems
SKU: MAB36441
Rating: 5 (1 reviews)

Catalog #: MAB36441 1 Review Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB36441
MAB36441-SP

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human CD48/SLAMF2 Antibody Summary

Species Reactivity

Human

Specificity

Detects human CD48/SLAMF2 in direct ELISAs and Western blots. Does not cross-react with recombinant human (rh) OX-40, rhCD84, or recombinant mouse CD48.

Source

Monoclonal Mouse IgG2b Clone # 394620

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.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

Recombinant Human CD48/SLAMF2 (Catalog # 3644-CD) under non-reducing conditions only

Immunocytochemistry

8-25 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Immunocytochemistry

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CD48/SLAMF2 in Human PBMCs. CD48/SLAMF2 was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using 10 µg/mL Mouse Anti-Human CD48/SLAMF2 Mono-clonal Antibody (Catalog # MAB36441) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counter-stained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Immunocytochemistry

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CD48/SLAMF2 in Human PBMCs. CD48/SLAMF2 was detected in immersion fixed non-stimulated human peripheral blood mononuclear cells (PBMCs) using 25 µg/mL Mouse Anti-Human CD48/SLAMF2 Mono-clonal Antibody (Catalog # MAB36441) for 3 hours at room temperature. Cells were stained (red) and counterstained (green). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Shipping

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

Store the unopened product at -20 to -70 °C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Do not use past expiration date.

Background: CD48/SLAMF2

CD48, also known as BLAST-1, BCM-1, and SLAMF2, is a 65 kDa GPI-linked protein in the CD2 family of immunoglobulin superfamily molecules (1-3). The human CD48 cDNA encodes a 243 amino acid (aa) precursor that includes a 26 aa signal sequence, a 194 aa mature protein that contains one Ig-like V-type domain and one Ig-like C2-type domain, and a 23 aa C-terminal propeptide (4). A soluble form of CD48 has been detected in the serum of lymphoid leukemia and arthritis patients (5). Human CD48 shares approximately 50% aa sequence identity with mouse and rat CD48. It shares 20%‑26% aa sequence identity with comparable regions of human CD2 family members 2B4, CD2, BLAME, CD2F-10, CD84, CD229, CRACC, NTB-A, and SLAM. CD48 is expressed on most lineage-committed hematopoietic cells but not on hematopoietic stem cells or multipotent hematopoietic progenitors (4, 6). Among dendritic cells (DC), CD48 is selectively expressed on circulating myeloid DC and resident bone marrow and thymus DC (7). CD2, 2B4, and heparan sulfate function as CD48 ligands (8‑10). CD48 is competent to transduce signals and can also trigger signaling through CD2 or 2B4 (8, 11). CD48-CD2 interactions promote T cell activation and class switching to IgG_2a in B cells (8, 12). High affinity CD48‑2B4 interactions can either promote or inhibit NK cell and cytotoxic T cell (CTL) activation (7, 11, 13, 14). In mouse, CD48-2B4 ligation does not directly trigger CTL activity but enhances signaling from the T cell receptor (13). CD48-2B4 mediated inhibition of NK cell activity is distinct from MHC I-restricted mechanisms (15). CD48 expressed on NK cells is coactivating, whereas CD48 expressed on other cell types inhibits NK cell activation (14). Both CD48 expressing and non‑expressing cells can be targets of NK cell or CTL-mediated lysis (13, 16).

References

Assarsson, E. et al. (2005) J. Immunol. 175:2045.
Bhat, R. et al. (2006) J. Leukocyte Biol. 79:417.
Loertscher, R. and P. Lavery (2002) Transpl. Immunol. 9:93.
Wong, Y.W. et al. (1990) J. Exp. Med. 171:2115.
Smith, G.M. et al. (1997) J. Clin. Immunol. 17:502.
Keil, M.J. et al. (2005) Cell 121:1109.
Morandi, B. et al. (2005) J. Immunol. 175:3690.
Kato, K. et al. (1992) J. Exp. Med. 176:1241.
Latchman, Y. et al. (1998) J. Immunol. 161:5809.
Ianelli, C.J. et al. (1998) J. Biol. Chem. 273:23367.
Messmer, B. et al. (2006) J. Immunol. 176:4646.
Gao, N. et al. (2005) J. Immunol. 174:4113.
Lee, K-M. et al. (2003) J. Immunol. 170:4881.
Lee, K-M. et al. (2006) Blood 107:3181.
McNerney, M.E. et al. (2005) Blood 106:1337.
Lee, K-M. et al. (2004) J. Exp. Med. 199:1245.

Long Name

SLAM Family Member 2

Entrez Gene IDs

962 (Human); 12506 (Mouse); 245962 (Rat); 102134608 (Cynomolgus Monkey)

Alternate Names

BCM1 surface antigen; BCM1; BCM1Leukocyte antigen MEM-102; BLAST; BLAST1; BLAST1TCT.1; B-lymphocyte activation marker BLAST-1; CD48 antigen (B-cell membrane protein); CD48 antigen; CD48 molecule; CD48; hCD48; mCD48; MEM-102; SLAMF2