- M1/70 (See other available formats)
- Regulatory Status
- Other Names
- αM integrin, Mac-1, Mo1, CR3, Ly-40, C3biR, ITGAM
- Rat IgG2b, κ
- Ave. Rating
- Submit a Review
- Product Citations
CD11b is a 170 kD glycoprotein also known as αM integrin, Mac-1 α subunit, Mol, CR3, and Ly-40. CD11b is a member of the integrin family, primarily expressed on granulocytes, monocytes/macrophages, dendritic cells, NK cells, and subsets of T and B cells. CD11b non-covalently associates with CD18 (β2 integrin) to form Mac-1. Mac-1 plays an important role in cell-cell interaction by binding its ligands ICAM-1 (CD54), ICAM-2 (CD102), ICAM-4 (CD242), iC3b, and fibrinogen.Product Details
- Verified Reactivity
- Mouse, Human, Cynomolgus, Rhesus
- Reported Reactivity
- Chimpanzee, Baboon, Rabbit
- Antibody Type
- Host Species
- C57BL/10 splenocytes
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 488 under optimal conditions.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
FC - Quality tested
IHC-F, 3D IHC - Verified
SB - Reported in the literature, not verified in house
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per 106 cells in 100 µl volume. For immunohistochemical staining on frozen tissue sections, the suggested use of this reagent is 2.5 - 10 µg per ml. For 3D immunohistochemistry on formalin-fixed tissues, a concentration of 5.0 µg/mL is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 488 has a maximum emission of 519 nm when it is excited at 488 nm.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
View full statement regarding label licenses
- Excitation Laser
Blue Laser (488 nm)
- Application Notes
Clone M1/70 has been verified for immunocytochemistry (ICC) and frozen immunohistochemistry (IHC-F).
Additional reported applications (for relevant formats of this clone) include: immunoprecipitation1,4, in vitro blocking3,9,12, depletion2,8, immunofluorescence microscopy6,7,10, immunohistochemistry of acetone-fixed frozen sections5,11-13, and spatial biology (IBEX)35,36. For in vivo studies or highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) (Cat. No. 101248).
- Additional Product Notes
Iterative Bleaching Extended multi-pleXity (IBEX) is a fluorescent imaging technique capable of highly-multiplexed spatial analysis. The method relies on cyclical bleaching of panels of fluorescent antibodies in order to image and analyze many markers over multiple cycles of staining, imaging, and, bleaching. It is a community-developed open-access method developed by the Center for Advanced Tissue Imaging (CAT-I) in the National Institute of Allergy and Infectious Diseases (NIAID, NIH).
(PubMed link indicates BioLegend citation)
- Springer T, et al. 1978. Eur. J. Immunol. 8:539. (IP)
- Ault K and Springer T. 1981. J. Immunol. 126:359. (Deplete)
- Springer TA, et al. 1982. Immunol. Rev. 68:171. (Block)
- Ho MK and Springer TA. 1983. J. Biol. Chem. 258:2766. (IP)
- Flotte TJ, et al. 1983. Am. J. Pathol. 111:112. (IHC)
- Noel GJ, et al. 1990. J. Clin. Invest. 85:208. (IF)
- Allen LA and Aderem A. 1996. J. Exp. Med. 184:627 (IF)
- D'Amico A and Wu L. 2003. J. Exp. Med. 198:293. (Deplete)
- Brickson SJ, et al. 2003. Appl Physiol. 95:969. (Block)
- Clatworthy MR and Smith KG. 2004. J. Exp. Med. 199:717. (IF)
- Hata H, et al. 2004. J. Clin. Invest. 114:582. (IHC)
- Zhang Y, et al. 2002. J. Immunol. 168:3088. (IHC)
- Iwasaki A and Kelsall BL. 2001. J. Immunol. 166:4884 (IHC, FC)
- Tailleux L. 2003. J. Exp. Med. 197:121. (Block, FC)
- Olver S, et al. 2006. Cancer Research 66:571. (FC)
- Tan SL, et al. 2006. J. Immunol. 176:2872. (FC) PubMed
- Ponomarev ED, et al. 2006. J. Immunol. 176:1402. (FC)
- Dzhagalov I, et al. 2007. Blood 109:1620. (FC)
- Fazilleau N, et al. 2007. Nature Immunol. 8:753.
- Rasmussen JW, et al. 2006. Infect. Immun.74:6590. PubMed
- Napimoga MH, et al. 2008. J. Immunol. 180:609. PubMed
- Elqaraz-Carmon V, et al. 2008. J. Lipid. Res. 49:1894. PubMed
- Kim DD, et al. 2008. Blood 112:1109. PubMed
- Guo Y, et al. 2008. Blood 112:480. PubMed
- Norian LA, et al. 2009. Cancer Res. 69:3086. (FC) PubMed
- Baumgartner CK, et al. 2010. J. Immunol. 184:573. PubMed
- Charles N, et al. 2010. Nat. Med. 16:701. (FC) PubMed
- Whiteland J, et al. 1995. J. Histochem. Cytochem. 43:313. (IHC)
- Weber GF, et al. 2014. J Exp Med. 211:1243. PubMed
- Ashok A, et al. 2015. Toxicol Sci. 143:64. PubMed
- Price PJ, et al. 2015. J Immunol. 194:1164. PubMed
- Doni A, et al. 2015. J Exp Med. 212:905. PubMed
- Ferreira R, et al. 2016. J Infect Dis. 213: 669 - 673. PubMed
- Peterson VM, et al. 2017. Nat. Biotechnol. 35:936. (PG)
- Radtke AJ, et al. 2020. Proc Natl Acad Sci U S A. 117:33455-65. (SB) PubMed
- Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
- Product Citations
AB_493545 (BioLegend Cat. No. 101219)
AB_389305 (BioLegend Cat. No. 101217)
- Integrin family, associates with integrin β2 (CD18), 170 kD
Granulocytes, monocytes/macrophages, dendritic cells, NK cells, subsets of T and B cells
- Adhesion, chemotaxis
- ICAM-1 (CD54), ICAM-2 (CD102), ICAM-4 (CD242), iC3b, fibrinogen
- Cell Type
- B cells, Dendritic cells, Granulocytes, Macrophages, Monocytes, Neutrophils, NK cells, T cells, Tregs
- Biology Area
- Cell Adhesion, Cell Biology, Costimulatory Molecules, Immunology, Innate Immunity, Neuroscience, Neuroscience Cell Markers
- Molecular Family
- Adhesion Molecules, CD Molecules
- Antigen References
1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Springer TA. 1994. Cell 76:301.
3. Coxon A, et al. 1996. Immunity 5:653.
- Gene ID
- 16409 View all products for this Gene ID 3684 View all products for this Gene ID
- View information about CD11b on UniProt.org
Related Pages & Pathways
- If an antibody clone has been previously successfully used in IBEX in one fluorescent format, will other antibody formats work as well?
It’s likely that other fluorophore conjugates to the same antibody clone will also be compatible with IBEX using the same sample fixation procedure. Ultimately a directly conjugated antibody’s utility in fluorescent imaging and IBEX may be specific to the sample and microscope being used in the experiment. Some antibody clone conjugates may perform better than others due to performance differences in non-specific binding, fluorophore brightness, and other biochemical properties unique to that conjugate.
- Will antibodies my lab is already using for fluorescent or chromogenic IHC work in IBEX?
Fundamentally, IBEX as a technique that works much in the same way as single antibody panels or single marker IF/IHC. If you’re already successfully using an antibody clone on a sample of interest, it is likely that clone will have utility in IBEX. It is expected some optimization and testing of different antibody fluorophore conjugates will be required to find a suitable format; however, legacy microscopy techniques like chromogenic IHC on fixed or frozen tissue is an excellent place to start looking for useful antibodies.
- Are other fluorophores compatible with IBEX?
Over 18 fluorescent formats have been screened for use in IBEX, however, it is likely that other fluorophores are able to be rapidly bleached in IBEX. If a fluorophore format is already suitable for your imaging platform it can be tested for compatibility in IBEX.
- The same antibody works in one tissue type but not another. What is happening?
Differences in tissue properties may impact both the ability of an antibody to bind its target specifically and impact the ability of a specific fluorophore conjugate to overcome the background fluorescent signal in a given tissue. Secondary stains, as well as testing multiple fluorescent conjugates of the same clone, may help to troubleshoot challenging targets or tissues. Using a reference control tissue may also give confidence in the specificity of your staining.
- How can I be sure the staining I’m seeing in my tissue is real?
In general, best practices for validating an antibody in traditional chromogenic or fluorescent IHC are applicable to IBEX. Please reference the Nature Methods review on antibody based multiplexed imaging for resources on validating antibodies for IBEX.
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FITC anti-mouse/human CD11b
PE anti-mouse/human CD11b
PE/Cyanine5 anti-mouse/human CD11b
Purified anti-mouse/human CD11b
PE/Cyanine7 anti-mouse/human CD11b
Alexa Fluor® 488 anti-mouse/human CD11b
Alexa Fluor® 647 anti-mouse/human CD11b
Alexa Fluor® 700 anti-mouse/human CD11b
Pacific Blue™ anti-mouse/human CD11b
APC/Cyanine7 anti-mouse/human CD11b
PerCP/Cyanine5.5 anti-mouse/human CD11b
PerCP anti-mouse/human CD11b
Brilliant Violet 421™ anti-mouse/human CD11b
Brilliant Violet 570™ anti-mouse/human CD11b
Brilliant Violet 605™ anti-mouse/human CD11b
Brilliant Violet 650™ anti-mouse/human CD11b
Brilliant Violet 711™ anti-mouse/human CD11b
Brilliant Violet 785™ anti-mouse/human CD11b
Brilliant Violet 510™ anti-mouse/human CD11b
Ultra-LEAF™ Purified anti-mouse/human CD11b
Purified anti-mouse/human CD11b (Maxpar® Ready)
Alexa Fluor® 594 anti-mouse/human CD11b
PE/Dazzle™ 594 anti-mouse/human CD11b
APC/Fire™ 750 anti-mouse/human CD11b
TotalSeq™-A0014 anti-mouse/human CD11b
Brilliant Violet 750™ anti-mouse/human CD11b
TotalSeq™-B0014 anti-mouse/human CD11b
TotalSeq™-C0014 anti-mouse/human CD11b
Spark NIR™ 685 anti-mouse/human CD11b
PE/Fire™ 640 anti-mouse/human CD11b
Spark YG™ 593 anti-mouse/human CD11b
Spark YG™ 570 anti-mouse/human CD11b
PE/Fire™ 810 anti-mouse/human CD11b
APC/Fire™ 810 anti-mouse/human CD11b Antibody
Spark Blue™ 550 anti-mouse/human CD11b
Spark UV™ 387 anti-mouse/human CD11b
PerCP/Fire™ 806 anti-mouse/human CD11b