The antibody MEM-48 recognizes an extracellular epitope involving residues 534-546 in cysteine-rich repeat 3 of the CD18 antigen (integrin beta2 subunit, beta2 integrin). CD18 is a 90-95 kDa type I transmembrane protein expressed on all leukocytes.
无交叉反应
犬
交叉反应 (详细)
Human
纯化方法
Purified by sequential steps of physicochemical fractionation (differential precipitation and solid-phase chromatography methods).
纯度
> 95 % (by SDS-PAGE)
内毒素水平
Endotoxin level is less than 0.01 EU/µg of the protein, as determined by the LAL test.
免疫原
Leukocytes of a patient suffering from a LGL-type leukemia.
Kuttruff, Koch, Kelp, Pawelec, Rammensee, Steinle: "NKp80 defines and stimulates a reactive subset of CD8 T cells." in: Blood, Vol. 113, Issue 2, pp. 358-69, (2009) (PubMed).
Garnotel, Rittié, Poitevin, Monboisse, Nguyen, Potron, Maquart, Randoux, Gillery: "Human blood monocytes interact with type I collagen through alpha x beta 2 integrin (CD11c-CD18, gp150-95)." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 164, Issue 11, pp. 5928-34, (2000) (PubMed).
Stefanová, Horejsí: "Association of the CD59 and CD55 cell surface glycoproteins with other membrane molecules." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 147, Issue 5, pp. 1587-92, (1991) (PubMed).
Bazil, Stefanová, Hilgert, Kristofová, Van?k, Horejsí: "Monoclonal antibodies against human leucocyte antigens. IV. Antibodies against subunits of the LFA-1 (CD11a/CD18) leucocyte-adhesion glycoprotein." in: Folia biologica, Vol. 36, Issue 1, pp. 41-50, (1990) (PubMed).
Larson, Springer: "Structure and function of leukocyte integrins." in: Immunological reviews, Vol. 114, pp. 181-217, (1990) (PubMed).
Integrin subunit beta 2,CD18, integrin beta2 subunit, forms heterodimers with four types of CD11 Molecule to constitute leukocyte (beta2) integrins: alphaLbeta2 (CD11a/CD18, LFA-1), alphaMbeta2 (CD11b/CD18, Mac-1, CR3), alphaXbeta2 (CD11c/CD18) and alphaDbeta2 (CD11d/CD18). In most cases, the response mediated by the integrin is a composite of the functions of its individual subunits. These integrins are essential for proper leukocyte migration, mediating intercellular contacts. Absence of CD18 leads to leukocyte adhesion deficiency-1, severe reduction of CD18 expression leads to the development of a psoriasiform skin disease. CD18 is also a target of Mannheimia (Pasteurella) haemolytica leukotoxin and is sufficient to mediate leukotoxin-mediated cytolysis.,Integrin beta2, Complement receptor C3 subunit beta, ITGB2