Invitrogen™ CD11b Monoclonal Antibody (MEM-174)

Mouse Monoclonal Antibody

Supplier:  Invitrogen™ MA119004

Catalog No. 01-675-877

Description

This antibody recognizes an extracellular epitope of CD11b antigen (Mac-1 alpha), a 165-170 kDa type I transmembrane protein mainly expressed on monocytes, granulocytes and NK-cells. The CD11b mediates neutrophil and monocyte interactions with stimulated endothelium. Immunoprecipitation with the antibody MEM-174 was successfully performed using immuno-affinity sorbents (Mini columns). The final immunosorbent should contain 1-5 mg of antibody/1 mL of sorbent gel (e.g. agarose beads). It is recommended to stimulate positive control material by LPS 1-2 days before to achieve better expression of target antigen.

CD11b (integrin alpha-M, ITGAM, integrin alpha-X, ITGAX) is a 165 kDa adhesion molecule that associates non-covalently with integrin beta-2 (CD18). The CD11b/CD18 heterodimeric complex is also known as integrin alpha-M beta-2, Mac-1, and CR3 (complement receptor 3). CD11b is expressed on the surface of monocytes/macrophages, granulocytes, activated lymphocytes, a subset of NK cells, a subset of dendritic cells, and microglia in the brain. CD11b/CD18 functions as the receptor for ICAM-1 (CD54), ICAM-2 (CD102), ICAM-4 (CD242), CD14, CD50, CD23, heparin, iC3b, fibrinogen, and Factor X -these adhesions are critical for cell-cell and cell-matrix interactions. CD11b is expressed on 8% of spleen cells, 44% of bone marrow cells, and less than 1% of thymocytes, and is commonly used as a microglial marker in nervous tissue. The expression of CD11b increases during monocyte maturation and expression levels vary on tissue macrophages. Further, peritoneal macrophages are reported to express higher levels of CD11b than splenic macrophages. Diseases associated with CD11b dysfunction include systemic lupus erythematosus 6 and ITGAM-related susceptibility to systemic lupus erythematosus.

Specifications

• Antigen: CD11b
• Classification: Monoclonal
• Concentration: 1 mg/mL
• Formulation: PBS with no preservative; pH 7.4
• Gene Accession No.: P11215
• Gene Symbols: ITGAM
• Immunogen: Human granulocytes.
• Quantity: 100 μg
• Primary or Secondary: Primary
• Target Species: Human
• Product Type: Antibody
• Isotype: IgG2a

• Applications: Flow Cytometry, Immunoprecipitation
• Clone: MEM-174
• Conjugate: Unconjugated
• Gene: ITGAM
• Gene Alias: antigen CD11b (p170); antigen CD11b (p170); macrophage antigen alpha polypeptide; CD11 antigen-like family member B; CD11b; CD11B (p170); CD11b/CD18; cell surface glycoprotein MAC-1 alpha subunit; cell surface glycoprotein MAC-1 subunit alpha; complement component 3 receptor 3 subunit; complement component receptor 3 alpha-a; complement receptor type 3; CR3; CR-3 alpha chain; CR3A; F730045J24Rik; integrin alpha M; integrin alpha-M; integrin subunit alpha M; integrin, alpha M; integrin, alpha M (complement component 3 receptor 3 subunit); ITGAM; Leukocyte adhesion receptor MO1; leukocyte integrin alpha-M chain; LOC100351865; Ly-40; MAC1; Mac-1; Mac-1 alpha; Mac-1 alpha (Mac1A); MAC-1 alpha subunit; MAC1A; Mac-1a; macrophage antigen alpha; macrophage antigen alpha polypeptide; MGC117044; MO1A; Neutrophil adherence receptor; neutrophil adherence receptor alpha-M subunit; SLEB6; unnamed protein product
• Host Species: Mouse
• Purification Method: Protein A
• Regulatory Status: RUO
• Gene ID (Entrez): 3684
• Content And Storage: 4°C, do not freeze
• Form: Liquid