Ultra-LEAF™ Purified anti-human CD11b Antibody

Pricing & Availability
Clone
ICRF44 (See other available formats)
Workshop
IV M047
Other Names
Integrin αM chain, C3biR, CR3, Mac-1, Mo1, ITGAM
Isotype
Mouse IgG1, κ
Ave. Rating
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Product Citations
publications
ICRF44_LEAF_061407
Human peripheral blood granulocytes stained with purified ICRF44, followed by anti-mouse IgGs FITC
  • ICRF44_LEAF_061407
    Human peripheral blood granulocytes stained with purified ICRF44, followed by anti-mouse IgGs FITC
Cat # Size Price Quantity Avail. Save
301361 100 µg £165
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301362 1 mg £413
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Description

CD11b is a 165-170 kD type I transmembrane glycoprotein also known as αM integrin, Mac-1, CR3, and C3biR. CD11b non-covalently associates with integrin β2 (CD18) and is expressed on granulocytes, monocytes/macrophages, dendritic cells, NK cells, and subsets of T and B cells. CD11b/CD18 is critical for the transendothelial migration of monocytes and neutrophils. It is also involved in granulocyte adhesion, phagocytosis, and neutrophil activation. CD11b/CD18 interacts with ICAM-1 (CD54), ICAM-2 (CD102), ICAM-4, CD14, CD23, heparin, iC3b, fibrinogen, and factor X.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Human, African Green, Baboon, Chimpanzee, Common Marmoset, Cynomolgus, Rhesus, Swine (Pig, Porcine)
Antibody Type
Monoclonal
Host Species
Mouse
Formulation
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
Preparation
The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration
1.0 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application

FC - Quality tested
CyTOF® - Validated
Block, IHC, IF - Reported in the literature

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 ≤ 2.0 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

The ICRF44 antibody inhibits heterotypic adhesion of granulocytes in response to fMLP. Additional reported applications (for the relevant formats) include: immunohistochemical staining of acetone-fixed frozen tissue sections, immunofluorescence microscopy5, stimulation of monocytes3, blocking of heterotypic PMN aggregation8, and blocking of granulocyte activation12. This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue.

The Ultra-LEAF™ purified antibody (Endotoxin <0.01 EU/μg, Azide-Free, 0.2 μm filtered) is recommended for functional assays (Cat. Nos. 301361 & 301362).

Application References

(PubMed link indicates BioLegend citation)
  1. Knapp W. 1989. Leucocyte Typing IV. Oxford University Press New York.
  2. Barclay N, et al. 1997. The Leucocyte Antigen Facts Book. Academic Press Inc. San Diego.
  3. Rezzonico R, et al. 2001. Blood 97:2932. (Stim)
  4. Marsik C, et al. 2003. Shock 20:493. (FC)
  5. David A, et al. 2003. J. Leukoc. Biol. 74:551. (IF)
  6. Charles N, et al. 2010. Nat. Med. 16:701. (FC) PubMed
  7. Thurlow LR, et al. 2010. Infect. Immun. 128:1128. (FC) PubMed
  8. Jadhav S, et al. 2001. J. Immunol. 167:5986. (Block)
  9. Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
  10. Sestak K, et al. 2007. Vet. Immunol. Immunopathol. 119:21. (FC)
  11. Wen T, et al. 2014. J Immunol. 192:5481. (FC) PubMed
  12. Sprong T, et al. 2003. Blood 102:3702. (Block)
  13. Cash JL, et al. 2013. EMBO Rep. 14:999. (FC) PubMed
  14. Larsson K, et al. 2015. PNAS. PubMed
RRID
AB_2814118 (BioLegend Cat. No. 301361)
AB_2814119 (BioLegend Cat. No. 301362)

Antigen Details

Structure
Integrin, type I transmembrane glycoprotein, associates with integrin β2 (CD18), 165-170 kD
Distribution

Granulocytes, monocytes/macrophages, dendritic cells, NK cells, subset of T cells, subset of B cells

Function
Adhesion, phagocytosis, chemotaxis, neutrophil activation
Ligand/Receptor
ICAM-1(CD54), ICAM-2 (CD102), ICAM-4, CD14, CD23, heparin, iC3b, fibrinogen, factor X
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. Stewart M, et al. 1995. Curr. Opin. Cell Biol. 7:690.

Gene ID
3684 View all products for this Gene ID
UniProt
View information about CD11b on UniProt.org

Related FAQs

Does BioLegend test each LEAF™ antibody by functional assay?

No, BioLegend does not test LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.

Do you guarantee that your antibodies are totally pathogen free?

BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.

Does BioLegend test each LEAF™ antibody for potential pathogens?

No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.

Have you tested this LEAF™/Ultra-LEAF™ antibody for in vivo or in vitro applications?

We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.

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For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.

 

*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

BioLegend Inc., 8999 BioLegend Way, San Diego, CA 92121 www.biolegend.com
Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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