CD50 Active Protein | ICAM3 active protein

CD50 Protein, Human, Recombinant (His Tag)

Cat. Num. AAA8120199

• Purity: >92% as determined by SDS-PAGE
• Synonyms: CD50; CD50 Protein; Human; Recombinant (His Tag); Human CD50/ICAM-3 Protein (His Tag); CDW50 Protein; ICAM-3 Protein; ICAM-R Protein; intercellular adhesion molecule 3; ICAM3 active protein

• Host: HEK293 Cells
• Purity/Purification: >92% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.5. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Met1-His485

• Species: Human
• Activity: Measured by the ability of the immobilized protein to support the adhesion of PMA-stimulated HSB2 human peripheral blood acute lymphoblastic leukemia cells. When cells are added to ICAM3-coated plates (12.5ug/mL, 100uL/well), approximately >25% cells will adhere specifically.
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: Gln 30
• Tag: C-His
• Protein Construction: A DNA sequence encoding the extracellular domain of human ICAM3 (CAA49369.1)(Met 1-His 485) was expressed, with the C-terminal fused polyhistidine tag.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; 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.

SDS-Page

Related Product Information for ICAM3 active protein

Background: The protein ICAM-3, also known as CD50, is a member of the intercellular adhesion molecule (ICAM) family consisting of three members. It is a DC-SIGN ligand that is constitutively expressed on resting leukocytes and is thus an important molecule for the first immune response. ICAM-3 comprises five immunoglobulin-like domains and binds LFA-1 through its two N-terminal domains. It functions not only as an adhesion molecule but also as a potent signaling molecule. ICAM-3 binds to LFA-1 on antigen-presenting cells (APC) stabilizing the T cell-APC interaction, facilitating signaling through the CD3/TCR complex. However, recent evidence using cultured and transformed T cells suggests ICAM-3 may also function in signaling. It has been reported that the CD50 molecule can play a role in developing functionally mature T lymphocytes and its expression increases during the maturation process of T lymphocytes. Also, the interactions of ICAM-3 and LFA-1 facilitate HIV-1- induced virological synapse formation between T cells. ICAM-3 is associated with an increase in cellular radio-resistance and cancer cell proliferation. It could be considered as a candidate for anti-cancer drug development and as a cancer test marker.

References

Berney SM, et al. (1999) ICAM-3 (CD50) cross-linking augments signaling in CD3-activated peripheral human T lymphocytes. J Leukoc Biol. 65(6): 867-74.van Buul JD, et al. (2004) ICAM-3 activation modulates cell-cell contacts of human bone marrow endothelial cells. J Vasc Res. 41(1): 28-37.Sugino H. (2005) ICAM-3, a ligand for DC-SIGN, was duplicated from ICAM-1 in mammalian evolution, but was lost in the rodent genome. FEBS Lett. 579(13): 2901-6.Park JK, et al. (2010) ICAM-3 enhances the migratory and invasive potential of human non-small cell lung cancer cells by inducing MMP-2 and MMP-9 via Akt and CREB. Int J Oncol. 36(1): 181-92.

NCBI and Uniprot Product Information

• Molecular Weight: The recombinant human ICAM3 consists of 467 amino acids after removal of the signal peptide and predicts a molecular mass of 50.8kDa. By SDS-PAGE, the apparent molecular mass of rh ICAM3 is approximately 100-120kDa due to the glycosylation.
• Protein Family: Intercellular adhesion molecule