Integrin, alpha L (Antigen CD11A (p180), Lymphocyte Function-Associated Antigen 1; alpha Polypeptide) (ITGAL) antibody

Antigen: Integrin, alpha L (Antigen CD11A (p180), Lymphocyte Function-Associated Antigen 1; alpha Polypeptide) (ITGAL)

Synonyms: CD11A, LFA-1, LFA1A, Cd11a, Ly-15, Ly-21, ITGAL, CD11a

Clonality: Monoclonal (MEM-25)

Host: Mouse

Reactivity: Human

Application: Flow Cytometry (FACS), Immunoprecipitation (IP), Functional Studies (Func)

Catalog no.: ABIN93948

Additional Information

Alternative name: CD11a

Immunogen: Leukocytes from a pacient suffering from a LGL-type leukaemia.

Format: Purified

Isotype: IgG1

Clone: MEM-25

Description: 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-affinityconformation, which supports tight binding of LFA-1 to its ligands, the intercellular adhesionmolecules ICAM-1, -2, -3. LFA-1 is thus involved in interaction of various immune cells andin their tissue-specific settlement, but participates also in control of cell differentiation andproliferation and of T-cell effector functions. Blocking of LFA-1 function by specificantibodies or small molecules has become an important therapeutic approach in treatmentof 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 ofcholesterol-lowering drug simvastatin to CD11a allosteric site leads to immunomodulationand increase in lymphocytic cholinergic activity.

Specificity: The antibody MEM-25 reacts with CD11a (alpha subunit of human LFA-1), a 170-180 kDatype I transmembrane glycoprotein expressed on B and T lymphocytes, monocytes,macrophages, neutrophils, basophils and eosinophils.HLDA IV, WS Code NL 209

Application Details

Application Notes: Immunoprecipitation: excellent antibody for immunoaffinity purification of LFA-1 complex. Functional Application: The antibody MEM-25 partially blocks binding of LFA-1 complex to ICAM-1.

Concentration: 1 mg/ml

Purity: > 95% (by SDS-PAGE)

Purification: Purified from ascites by protein-A affinity chromatography.

Buffer: Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4

Storage: Store at 2-8 o C. Do not use after expiration date stamped on vial label. For long-term storage aliquot and store at -20 o C. Avoid freeze/thaw cycles.

Research Area: Stem Cells, Hematopoietic Progenitors, CD Antigens, Surface Receptors of Immune Cells

Restrictions: For Research Use only

Publications

Publications: Ottonello, Epstein, Dapino et al.: "Monoclonal Lym-1 antibody-dependent cytolysis by neutrophils exposed to granulocyte-macrophage colony-stimulating factor: intervention of FcgammaRII (CD32), CD11b-CD18 integrins, and CD66b glycoproteins." in: Blood, Vol. 93, Issue 10, pp. 3505-11, 1999 (PubMed).

Simon, Cherapanov, Nadra et al.: "Signaling functions of L-selectin in neutrophils: alterations in the cytoskeleton and colocalization with CD18." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 163, Issue 5, pp. 2891-901, 1999 (PubMed).

Garnotel, Rittiue, Poitevin et al.: "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).

Hajishengallis, Martin, Sojar et al.: "Dependence of bacterial protein adhesins on toll-like receptors for proinflammatory cytokine induction." in: Clinical and diagnostic laboratory immunology, Vol. 9, Issue 2, pp. 403-11, 2002 (PubMed).

Mathison, Befus, Davison et al.: "Modulation of neutrophil function by the tripeptide feG." in: BMC immunology, Vol. 4, pp. 3, 2003 (PubMed).

Stulc, Vrabluik, Kasalovua et al.: "Leukocyte and endothelial adhesion molecules in patients with hypercholesterolemia: the effect of atorvastatin treatment." in: Physiological research / Academia Scientiarum Bohemoslovaca, Vol. 57, Issue 2, pp. 184-94, 2008 (PubMed).

Wang, Kwas, Wu: "Intercellular adhesion molecule 1 (ICAM-1), but not ICAM-2 and -3, is important for dendritic cell-mediated human immunodeficiency virus type 1 transmission." in: Journal of virology, Vol. 83, Issue 9, pp. 4195-204, 2009 (PubMed).

Eksteen, Mora, Haughton et al.: "Gut homing receptors on CD8 T cells are retinoic acid dependent and not maintained by liver dendritic or stellate cells." in: Gastroenterology, Vol. 137, Issue 1, pp. 320-9, 2009 (PubMed).

Aubert, Yoon, Sloan et al.: "The virological synapse facilitates herpes simplex virus entry into T cells." in: Journal of virology, Vol. 83, Issue 12, pp. 6171-83, 2009 (PubMed).