Thermo Fisher Scientific CD11a Monoclonal Antibody (MEM-83)

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

1 µg/mL

-

Immunoprecipitation (IP)

Assay-dependent

-

Functional Assay (Functional)

Assay-dependent

-

Product Specifications

Species Reactivity

Human

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

MEM-83

Immunogen

Human peripheral blood lymphocytes if (typeof window.$mangular === undefined || !window.$mangular) { window.$mangular = {}; } $mangular.antigenJson = \[{targetFamily:CD11a,uniProtId:P20701-1,ncbiNodeId:9606,antigenRange:1-1170,antigenLength:1170,antigenImageFileName:MA5-44062_CD11a_P20701-1_House_mouse.svg,antigenImageFileNamePDP:MA5-44062_CD11a_P20701-1_House_mouse_PDP.jpeg,sortOrder:1}\]; $mangular.isB2BCMGT = false; $mangular.isEpitopesModalImageMultiSizeEnabled = true;

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Conjugate

Unconjugated Unconjugated Unconjugated

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_2912994

Product Specific Information

This antibody reacts with an extracellular epitope of CD11a (alpha subunit of human LFA-1), a 170-180 kDa type I transmembrane glycoprotein expressed on B and T lymphocytes, monocytes, macrophages, neutrophils, basophils and eosinophils.

Functional application: The antibody directly induces the binding of T cells to purified ICAM-1. Using an in vitro-translated CDlla cDNA deletion series, the MEM-83 activation epitope was mapped to the I domain of the LFA-1 alpha subunit. The studies have therefore identified a novel LFA-1 activation epitope mapping to the I domain of LFA-1, which could play a role in the regulation of LFA-1 binding to ICAM-1

Target Information

CD11a (LFA-1 alpha, ITGAL) together with CD18 constitute leukocyte function-associated antigen 1 (LFA-1), the alphaLbeta2 integrin. CD11a is implicated in activation of LFA-1 complex. CD11a plays a central role in leukocyte intercellular adhesion through interactions with its ligands, ICAMs 1-3 (intercellular adhesion molecules 1 through 3), and also functions in lymphocyte costimulatory signaling. CD11a is expressed on the plasma membrane of leukocytes in a low-affinity conformation. Cell stimulation by chemokines or other signals leads to induction the high-affinity conformation, which supports tight binding of CD11a to its ligands, the intercellular adhesion molecules ICAM-1, -2, -3. CD11a is thus involved in interaction of various immune cells and in their tissue-specific settlement, but participates also in control of cell differentiation and proliferation and of T-cell effector functions. Blocking of CD11a function by specific antibodies or small molecules has become an important therapeutic approach in treatment of multiple inflammatory diseases. For example, humanized anti- CD11a antibody Efalizumab (Raptiva) is being used to interfere with T cell migration to sites of inflammation, binding of cholesterol-lowering drug simvastatin to CD11a allosteric site leads to immunomodulation and increase in lymphocytic cholinergic activity. Two transcript variants encoding different isoforms of CD11a have been found. Diseases associated with CD11a dysfunction include benign cephalic histiocytosis and leukocyte adhesion deficiency.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.