CD11b Antibody (ICRF44) [Alexa Fluor® 700] Summary
synovial cells and monocytes
Microglia Marker, Macrophage Marker
Detects human CD11b/Integrin alpha M.
Test in a species/application not listed above to receive a full credit towards a future purchase.
- Flow Cytometry 0.25-1 ug/10^6 cells
Flow Cytometry: Please use 0.25-1 ug of conjugated antibody per 10e6 cells.
Packaging, Storage & Formulations
|Protect from light. Do not freeze.
- 12 months from date of receipt, 2 to 8 °C as supplied.
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
0.09% Sodium Azide
Please see the vial label for concentration. If unlisted please contact technical services.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for CD11b Antibody (ICRF44) [Alexa Fluor® 700]
- antigen CD11b (p170)
- CD11 antigen-like family member B
- CD11b antigen
- CD11Bintegrin, alpha M (complement component receptor 3, alpha; also known as CD11b(p170), macrophage antigen alpha polypeptide)
- Cell surface glycoprotein MAC-1 subunit alpha
- CR-3 alpha chain
- Integrin alpha M
- integrin alpha-M
- integrin, alpha M (complement component 3 receptor 3 subunit)
- Leukocyte adhesion receptor MO1
- macrophage antigen alpha polypeptide
- neutrophil adherence receptor alpha-M subunit
- Neutrophil adherence receptor
The Integrin family proteins are heterodimeric transmembrane receptors
composed of an alpha and a beta subunit. The Integrin alpha M subunit, also known
as MAC-1 alpha subunit or CD11b, combines with the Integrin beta 2 subunit
(CD18) to form the non-covalent heterodimer Integrin alpha M/ beta 2, also known
as MAC-1 and complement receptor type 3 (CR3). Integrin alpha M/ beta 2 is
expressed on granulocytes, macrophages, dendritic cells and natural
killer cells. Upon activation, alpha M/ beta 2 can bind several ligands
(including ICAM-1 fibrinogen and the C3 complement fragment C3bi) to
mediate phagocyte adhesion, migration and ingestion of
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed
for 1 year from date of receipt.
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Product General Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
FAQs for CD11b Antibody (FAB1699N). (Showing 1 - 7 of 7 FAQ).
I am looking for a Mac-1 (microglia cell marker) antibody to do immunostaining with my mouse brain and I checked, you have a lot of antibodies for this biomarker. I don't know which one is the best to be used for immunohistology on mouse brain tissue. Could you please help with this?
- I would recommend NB110-89474. This antibody has been published in 11 scientific articles, including several times in IHC in mouse. As long as CD11b is expressed in your sample, it should work just fine and is backed by our 100% Novus Guarantee.
What types of cells can this CD11b antibody be used as a marker for?
- A study used this CD11b antibody to stain granulocytes in mouse uterine tissue in IHC. CD11b is also expressed on other leukocytes such as monocytes, macrophages, and natural killer cells.
Do you know if this CD11b antibody can be used in CD11b positive cell depletion?
- This particular CD11b antibody is not reccomended for depletion studies due to the preservative used; however, our CD11b antibody NBP1-06650 is offered in a preservative free format and has been validated for blocking.
Looking for a bone marrow macrophage marker can you recommend a CD11b antibody for ICC?
- I would recommend NB110-89474 which is our most popular CD11b antibody and has been validated in ICC and cited in 18 publications.
We need a CD11b antibody for IHC-P on mouse tissue conjugated to FITC, do you have one that will work?
- We have 3 CD11b antibodies for IHC-P and just one CD11 b antibody we offer conjugated to FITC, NB110-89474F.
The protocol says to do enzymatic antigen retrieval before incubating with the CD11b antibody, which enzyme is used?
- The protocol is referencting the PIER method using Proteinase K as the enzyme.
I'm not sure if this will work for me, can I get a free sample of your CD11b antibody to test?
- We don't offer free samples but we do offer this CD11b antibody in a trial size of 0.025 ml at a reduced cost, all antibodies are backed by our 100% guarantee to work in all validated species and applications on the product's web page.
Additional Array Products
Bioinformatics Tool for CD11b Antibody (FAB1699N)
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Blogs on CD11b.
TMEM 119 is a specific marker of microglia cells
By Jennifer Sokolowski, MD, PhD.Microglia are a major immune-cell component in the brain. They ingest and degrade dead cells, debris, and foreign material and interact with other immune cells to orchestrate centra... Read full blog post.
Topics in CD11b: The innate immune response
Integrins are transmembrane receptors composed of alpha and beta chains, where beta-integrins are mainly expressed in leukocytes. Leukocytes are white blood cells that act in the immune system to defend our body against foreign pathogens. Integrin... Read full blog post.
CD11b - More than a microglial marker
The protein CD11b has been implicated in the various adhesion-related interactions of cells such as monocytes, macrophages, natural killer (NK) cells, and granulocytes. It is part of a heterodimer that consists of CD11b and CD18. It also modulates the... Read full blog post.
CD11b: Marker for a New Type of B Cell that Participates in Cell-Mediated Immunity
Think B lymphocytes just produce antibodies? Think again! Although, of course, B cells are vital for the humoral immune response, many studies in recent years have begun to uncover antibody-independent actions of B cells: regulating T cells and thus a... Read full blog post.
Adhesion Receptor Molecule CD11b/c is the Point of Entry for many Infectious Diseases
Pathogenic microorganisms utilize a variety of cell surface receptors to gain entry into host cells and to bypass the natural defense mechanisms. One of the most prominent receptors used in this fashion is the leukocyte adhesion receptor CD11b/c. This... Read full blog post.
CD11b/CD18 and Neutrophil-Epithelial Interactions as Targets for Anti-Inflammatory Therapies
The beta-2 integrins, a family of four cell surface transmembrane glycoproteins expressed only on leukocytes, include CD11a/CD18, CD11b/CD18, CD11c/CD18, and CD11d/CD18. They consist of a common beta subunit (CD18) and homologous alpha subunits (CD11a... Read full blog post.
The CD11b Antibody: A Marker for Microglial Cells
Microglia are the resident macrophages of the central nervous system, and the first line of immune defense. Pioneering antibody research in the 1990's identified the Integrin beta 2 protein (also called ITGB2, complement receptor 3, CR3, CD18, and Mac... Read full blog post.
CD11b Expression, Leukocyte Adhesion and the Innate Immune System
CD11b is an integrin family member which pairs with CD18 to form the CR3 heterodimer. CD11b is expressed on the surface of many leukocytes including monocytes, neutrophils, natural killer cells, granulocytes and macrophages, as well as on 8% of spleen... Read full blog post.