Invitrogen™ CD11b Monoclonal Antibody (M1/70), APC-eFluor™ 780, eBioscience™, Invitrogen™

Catalog No.	Quantity
50-112-9683	25 μg
50-161-42	100 μg

Catalog No. 50-112-9683 Supplier Invitrogen™ Supplier No. 47011280

Description

Rat Monoclonal Antibody

Description: The M1/70 monoclonal antibody reacts with mouse CD11b, the 165-170 kDa integrin alphaM. CD11b non-covalently associates with CD18 to form alphaMbeta2 integrin (Mac-1) and binds to CD54 (ICAM-1), C3bi, and fibrinogen. Mac-1 is expressed by macrophages, NK cells, granulocytes, activated lymphocytes and mouse B-1 cells in the peritoneal cavity. M1/70 is also cross-reactive to human CD11b, and can be used for the detection of this antigen on human peripheral blood monocytes, granulocytes, and a subset of NK cells. Through interactions with its ligands, CD11b participates in adhesive cell interactions. Applications Reported: This M1/70 antibody has been reported for use in flow cytometric analysis. Applications Tested: This M1/70 antibody has been tested by flow cytometric analysis of mouse bone marrow cells. This can be used at less than or equal to 0.125 μg per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. APC-eFluor 780 emits at 780 nm and is excited with the Red laser (633 nm). Please make sure that your instrument is capable of detecting this fluorochome. Light sensitivity: This tandem is sensitive to photo-induced oxidation.

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
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: M1/70
• Concentration: 0.2 mg/mL
• Conjugate: APC-eFluor 780
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: ITGAM
• Gene Accession No.: P05555
• 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
• Gene Symbols: ITGAM
• Host Species: Rat
• Purification Method: Affinity chromatography
• Quantity: 25 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 16409
• Target Species: Mouse
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG2b κ

Frequently Asked Questions (FAQs)

I am unable to analyze my cells stained with eFluor Organic Dyes today. What options do I have?

Our options will depend on the samples you are analyzing.

If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.

For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.

Can the eFluor Organic fluorochromes be used for intracellular staining?

Yes, the eFluor Organic fluorochromes can be used for intracellular staining. The eFluor organic fluorochromes maintain bright signal and require minimal changes in compensation when fixed with eBioscience IC Fixation Buffer (Cat. No. 00-8222-49) and Permeabilization Buffer (Cat. No. 00-8333-56) or 1-step Fix/Lyse Solution (Cat. No. 00-5333-54, 00-5333-57) (as compared to live cells).

What buffers are compatible with the eFluor Organic fluorochromes and eVolve QDots?

The eFluor Organic fluorochromes and eVolve QDots can be used with flow staining buffers containing PBS and protein.

What is the difference between eFluor Organic Dyes and eVolve Qdots?

The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.

Are the eFluor Organic Dyes photo-labile?

As with other fluorochromes, we recommend minimal exposure to light to maintain optimal signal.

For Research Use Only.