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Human ICAM-2 / CD102 Protein (His & Fc Tag)

CD102

Catalog Number P10332-H03H
Organism Species Human
Host Human Cells
Synonyms CD102
Molecular Weight The recombinant human ICAM2/Fc is a disulfide-linked homodimer after removal of the signal peptide. The reduced monomer consists of 449 amino acids and has a predicted molecular mass of 50.3 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhICAM2/Fc monomer is approximately 85-95 kDa due to glycosylation.
predicted N Ser 22
SDS-PAGE
Purity > 97 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the extracellular domain (Met 1-Gln 223) of human ICAM2 (NP_000864.2) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
Bio-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 ICAM2-coated plates (12.5 μg/mL, 100 μL/well), approximately 50 % - 60 % will adhere specifically.
Research Area Cardiovascular |Vasculature |Endothelium |Endothelial Cell Markers
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.
Background Intercellular adhesion molecule 2 (ICAM-2, CD102), belongs to the ICAM family consisting of three members identified as ligands for integrin receptors. It is a type I transmembrane glycoprotein with two Ig-like C2-type domains, and binds to the leukocyte integrins LFA-1 (CD11a/CD18) and Mac-1 (CD11b/CD18). As a second ligand of leukocyte function-associated antigen-1, ICAM-2 functions as a costimulatory molecule for effector cells. ICAM-2 is mainly expressed on vascular endothelial and hematopoietic cells. Interactions of ICAM-2 and the integrin receptors mediate cell adhesion in a wide range of lymphocyte, monocyte, natural killer cell, and granulocytewith other cells, and play important roles in many adhesion-dependent immune and inflammation responses, such as T cell aggregation, NK-cell cytotoxicity and migration, lymphocyte recirculation, etc. Serum levels of ICAM-2 correlated significantly with the inflammatory and course sequences of trichinosis in mice and had a similar relation with blood eosinophilia. So, estimation of ICAM-2 serum levels may prove useful in diagnosis of trichinosis recent infections, and in monitoring the prognosis and response to treatment.
Reference
  • Weber KS, et al. (2004) Sialylation of ICAM-2 on platelets impairs adhesion of leukocytes via LFA-1 and DC-SIGN. Inflammation. 28(4): 177-88.
  • Tanaka H, et al. (2004) ICAM-2 gene therapy for peritoneal dissemination of scirrhous gastric carcinoma. Clin Cancer Res. 10(14): 4885-92.
  • Younis AI, et al. (2005) Intercellular adhesion molecule-2 (ICAM-2) in experimental trichinosis. J Egypt Soc Parasitol. 35(3): 1019-26.