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Human CD2 Protein (His Tag)

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Human CD2 Protein Product Information
Synonym:CD2, RP4-655N15.2, FLJ46032, SRBC, T11
Protein Construction:A DNA sequence encoding the human CD2 (NP_001758.2) extracellular domain (Met 1-Asp 209) was expressed, fused with a polyhistidine tag at the C-terminus.
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human CD2 Protein QC Testing
Purity:> 97 % as determined by SDS-PAGE
Bio-Activity:Measured by its binding ability in a functional ELISA.
Immobilized human CD2-His at 10 μg/ml (100 μl/well) can bind human CD58-Fc (Cat:12409-H02H), The EC50 of human CD58-Fc (Cat:12409-H02H) is 0.04-0.1 μg/ml.
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Lys 25
Molecule Mass:The recombinant human CD2 consists of 196 amino acids and has a predicted molecular mass of 22.7 kDa. In SDS-PAGE under reducing conditions, rhCD2 magrates as an approximately 37 kDa band due to glycosylation.
Formulation:Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human CD2 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Other CD2 Recombinant Protein Products
CD2 Background

T-cell surface antigen CD2, also known as T-cell surface antigen T11/Leu-5, and SRBC, is a single-pass type I membrane protein. It contains one Ig-like C2-type domain and one Ig-like V-type domain. CD2 is a cell adhesion molecule expressed on T cells and is recognized as a target for CD48 (rats) and CD58 (humans). CD2 has been shown to set quantitative thresholds in T cell activation both in vivo and in vitro. Further, intracellular CD2 signaling pathways and networks are being discovered by the identification of several cytosolic tail binding proteins. CD2 interacts with lymphocyte function-associated antigen (LFA-3) and CD48/BCM1 to mediate adhesion between T-cells and other cell types. CD2 is implicated in the triggering of T-cells, the cytoplasmic domain of CD2 is implicated in the signaling function. The complex of CD2 and CD58 also plays an important role in enhancing the adhesion of T lymphocytes to target cells, and promoting hyperplasia and activation of T lymphocytes. As a cell surface glycoprotein, CD2 expressed on most human T cells and natural killer (NK) cells and plays an important role in mediating cell adhesion in both T-lymphocytes and in signal transduction.

Human CD2 References
  • Yang JJ, et al. (2001) Structural biology of the cell adhesion protein CD2: alternatively folded states and structure-function relation. Curr Protein Pept Sci. 2(1): 1-17.
  • Wilkins AL, et al. (2003) Structural biology of the cell adhesion protein CD2: from molecular recognition to protein folding and design. Curr Protein Pept Sci. 4(5): 367-73.
  • McNerney ME, et al. (2006) The CD2 family of natural killer cell receptors. Curr Top Microbiol Immunol. 298: 91-120.
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    Catalog: 10982-H08H-10
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    • Human CD2 Protein (His Tag) SDS-PAGE
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