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CD18 Antibody (MA1-19017) in Flow
Flow Cytometry analysis of CD18 using CD18 Monoclonal Antibody (MEM-148) (Product # MA1-19017). Separation of human monocytes (red-filled) from CD18 negative blood debris (black-dashed) in flow cytometry analysis (surface staining) of human peripheral whole blood stained using anti-human CD18 (MEM-148) purified antibody (concentration in sample 1.67 μg/mL) GAM APC.
Product Details
MA1-19017
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Host/Isotype
Mouse
/ IgG1
Class
Monoclonal
Type
Antibody
Clone
MEM-148
Immunogen
Peripheral blood mononuclear cells.
Conjugate
Form
Liquid
Concentration
1 mg/mL
Purification
Protein A
Storage buffer
PBS, pH 7.4
Contains
no preservative
Storage conditions
4° C, do not freeze
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_1071385
Product Specific Information
This antibody recognizes an extracellular epitope on CD18 which is essentially inaccessible in intact integrin molecules on resting leukocytes, but is exposed on high-affinity state of LFA-1 or on unassociated CD18. CD18 (integrin beta2 subunit; beta2 integrin) is a 90-95 kDa type I transmembrane protein expressed on all leukocytes.
This antibody will not cross-react with porcine.
Endotoxin level is less than 0.01 EU/ug of the protein, as determined by the LAL test.
Purity is >95% by SDS-PAGE.
Western blot should be performed under non-reducing conditions.
Functional Application: The antibody MEM-148 induces homotypic cell aggregation and high-affinity LFA-1 conformation in resting leukocytes.
Target Information
CD18 integrin beta 2 subunit is a 90 kDa type I transmembrane protein expressed on all leucocytes. CD18 can combine with integrin molecules CD11a-c to form heterodimers at the cell surface, and these heterodimers are known to participate in the process of cell adhesion as well as cell-surface mediated signaling. CD18 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, and 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. Defects in the CD18 gene are the cause of leukocyte adhesion deficiency type I (LAD1). Two transcript variants encoding the CD18 protein have been identified.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD18; cell surface adhesion glycoprotein (LFA-1/CR3/P150,959 beta subunit precursor); Cell surface adhesion glycoproteins LFA-1/CR3/p150,95 subunit beta; complement component 3 receptor 3 and 4 subunit; complement receptor C3 beta-subunit; Complement receptor C3 subunit beta; integrin beta chain, beta 2; Integrin beta-2; integrin, beta 2 (complement component 3 receptor 3 and 4 subunit); leukocyte cell adhesion molecule CD18; leukocyte-associated antigens CD18/11A, CD18/11B, CD18/11C
Gene Aliases: CD18; ITGB2; LAD; LCAMB; LFA-1; MAC-1; MF17; MFI7
UniProt ID: (Human) P05107
Entrez Gene ID: (Human) 3689
leukocyte migration involved in inflammatory response
phagocytosis
apoptotic process
inflammatory response
cell adhesion
leukocyte cell-cell adhesion
cell-matrix adhesion
integrin-mediated signaling pathway
cell-cell signaling
aging
regulation of cell shape
natural killer cell activation
extracellular matrix organization
neutrophil chemotaxis
receptor internalization
heterotypic cell-cell adhesion
toll-like receptor 4 signaling pathway
endodermal cell differentiation
receptor clustering
endothelial cell migration
cellular extravasation
positive regulation of nitric oxide biosynthetic process
positive regulation of angiogenesis
regulation of peptidyl-tyrosine phosphorylation
regulation of immune response
leukocyte migration
positive regulation of NF-kappaB transcription factor activity
cellular response to low-density lipoprotein particle stimulus
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