ARG62708

anti-CD11a / LFA1 alpha antibody [MEM-83]

anti-CD11a / LFA1 alpha antibody [MEM-83] for Flow cytometry,Functional study,Immunoprecipitation and Human

Developmental Biology antibody; Immune System antibody; Signaling Transduction antibody

Overview

Product Description Mouse Monoclonal antibody [MEM-83] recognizes CD11a / LFA1 alpha
Tested Reactivity Hu
Tested Application FACS, FuncSt, IP
Specificity The clone MEM-83 reacts with 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.
HLDA IV; WS Code N 211
Host Mouse
Clonality Monoclonal
Clone MEM-83
Isotype IgG1
Target Name CD11a / LFA1 alpha
Antigen Species Human
Immunogen Human peripheral blood lymphocytes
Conjugation Un-conjugated
Alternate Names Leukocyte adhesion glycoprotein LFA-1 alpha chain; LFA1A; LFA-1A; Integrin alpha-L; CD11A; Leukocyte function-associated molecule 1 alpha chain; LFA-1; CD11 antigen-like family member A; CD antigen CD11a

Application Instructions

Application Suggestion
Tested Application Dilution
FACS1 µg/ml
FuncStAssay-dependent
IPAssay-dependent
Application Note Functional studies: The clone MEM-83 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.
* The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.

Properties

Form Liquid
Purification Purified from ascites by protein-A affinity chromatography.
Purity > 95% (by SDS-PAGE)
Buffer PBS (pH 7.4) and 15 mM Sodium azide
Preservative 15 mM Sodium azide
Concentration 1 mg/ml
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.

Bioinformation

Database Links

GeneID: 3683 Human ITGAL

Swiss-port # P20701 Human Integrin alpha-L

Gene Symbol ITGAL
Gene Full Name integrin, alpha L (antigen CD11A (p180), lymphocyte function-associated antigen 1; alpha polypeptide)
Background CD11a (LFA-1 alpha) together with CD18 constitute leukocyte function-associated antigen 1 (LFA-1), the alphaLbeta2 integrin. CD11a is implicated in activation of LFA-1 complex. LFA-1 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 LFA-1 to its ligands, the intercellular adhesion molecules ICAM-1, -2, -3. LFA-1 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 LFA-1 function by specific antibodies or small molecules has become an important therapeutic approach in treatment of multiple inflammatory diseases. For example, humanized anti-LFA-1 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.
Function Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. It is involved in a variety of immune phenomena including leukocyte-endothelial cell interaction, cytotoxic T-cell mediated killing, and antibody dependent killing by granulocytes and monocytes. [UniProt]
Research Area Developmental Biology antibody; Immune System antibody; Signaling Transduction antibody
Calculated MW 129 kDa
PTM In resting T-cells, up to 40% of surface ITGAL is constitutively phosphorylated. Phosphorylation causes conformational changes needed for ligand binding and is necessary for activation by some physiological agents.

Clone References

LFA-1 and ICAM-1 expression induced during melanoma-endothelial cell co-culture favors the transendothelial migration of melanoma cell lines in vitro.

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Ghislin S et al.
BMC Cancer.,  (2012)

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Regulation of LFA-1-dependent inflammatory cell recruitment by Cbl-b and 14-3-3 proteins.

Choi EY et al.
Blood.,  (2008)

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A novel LFA-1 activation epitope maps to the I domain.

Landis RC et al.
J Cell Biol.,  (1993)

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Involvement of the I domain of LFA-1 in selective binding to ligands ICAM-1 and ICAM-3.

Landis RC et al.
J Cell Biol.,  (1994)

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