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CD11a Antibody (MA5-44062) in Flow
Separation of human CD11a positive lymphocytes (red-filled) from CD11a negative blood debris (black-dashed) in flow cytometry analysis (surface staining) of human peripheral whole blood stained using anti-human CD11a (MEM-83) purified Monoclonal antibody (Product # MA5-44062) (low endotoxin, concentration in sample 1 µg/mL) GAM APC.
产品信息
MA5-44062
应用
建议稀释比
已发表文章
产品规格
种属反应
Human
宿主/亚型
Mouse
/ IgG1
分类
Monoclonal
类型
Antibody
克隆号
MEM-83
抗原
Human peripheral blood lymphocytes
偶联物
形式
Liquid
浓度
1 mg/mL
纯化类型
Protein A
保存液
PBS, pH 7.4
内含物
no preservative
保存条件
4° C, do not freeze
运输条件
Ambient (domestic); Wet ice (international)
RRID
AB_2912994
产品详细信息
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
靶标信息
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.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
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生物信息学
蛋白别名: antigen CD11A (p180); antigen CD11A (p180), lymphocyte function-associated antigen 1, alpha polypeptide; antigen CD11A p180; CD11 antigen-like family member A; CD11a; integrin alpha L; Integrin alpha-L; integrin alphaL; integrin gene promoter; integrin, alpha L (antigen CD11A (p180), lymphocyte function-associated antigen 1; alpha polypeptide); Leukocyte adhesion glycoprotein LFA-1 alpha chain; Leukocyte function-associated molecule 1 alpha chain; LFA-1 alpha; LFA-1A; lymphocyte function-associated antigen 1; lymphocyte function-associated antigen 1, alpha polypeptide
基因别名: CD11A; ITGAL; LFA-1; LFA1A
UniProt ID: (Human) P20701
Entrez Gene ID: (Human) 3683
T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell
phagocytosis
movement of cell or subcellular component
inflammatory response
cell adhesion
heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules
leukocyte cell-cell adhesion
cell-matrix adhesion
signal transduction
integrin-mediated signaling pathway
extracellular matrix organization
receptor clustering
regulation of immune response
leukocyte migration
