Human CD11b ELISA Kit (Colorimetric)

Name: Human CD11b ELISA Kit (Colorimetric)
Brand: Novus Biologicals
SKU: NBP3-39957

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-39957

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Product Specifications
Precision
Scientific Data
Kit Contents
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Sample Type & Volume Required Per Well

Serum, plasma, tissue homogenates, cell lysates, cell culture supernatants and other biological fluids (100 uL)

Sensitivity

0.125 ng/mL (example only; lot dependent)

Assay Range

0.312 - 20 ng/mL (example only; lot dependent)

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Product Specifications

Assay Type

Sandwich ELISA

Kit Type

ELISA Kit (Colorimetric)

Reactivity

Human

Description

Assay Length: 4.5 hours

Precision

Intra-Assay Precision (Precision within an assay) %CV < 10 (example only; lot dependent)

Inter-Assay Precision (Precision between assays) %CV < 12 (example only; lot dependent)

Scientific Data Images for Human CD11b ELISA Kit (Colorimetric)

ELISA: Human CD11b ELISA Kit (Colorimetric) [NBP3-39957]

ELISA: Human CD11b ELISA Kit (Colorimetric) [NBP3-39957] - Standard Curve Reference

Kit Contents for Human CD11b ELISA Kit (Colorimetric)

Detection Reagent A
Detection Reagent B
Diluent Buffer
Instruction manual
Plate sealer for 96 wells
Pre-coated 96T strip plate
Standard
Stop Solution
TMB Substrate
Wash Buffer (30 x concentrate)

Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Storage of components varies. See protocol for specific instructions.

Background: CD11b/Integrin alpha M

CD11b (integrin alpha M subunit) is a type I transmembrane glycoprotein. 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). The CD11b/CD18 (Mac-1) heterodimer has a theoretical molecular weight of 127kDa but is often observed near 170kDa due to post translational modifications. Integrins are transmembrane proteins that mediate interactions between adhesion molecules on adjacent cells and/or the extracellular matrix. Integrins have diverse roles in several biological processes, including cell migration during development, wound healing, cell differentiation, and apoptosis. The particular integrin CD11b is known as a pro-inflammatory molecule given its ability to promote phagocyte cytotoxic functions while enhancing several effector molecules such as FcGR, uPAR, and CD14 (1). In macrophages, CpG-DNA stimulates lysosomal degradation and vacuolar acidification, subsequently promoting CD11b release via TLR9 (2). During an acute infection, high CD11b/Mac-1 expression on antigen-specific CD8 (+) T cells can signify recent activation of the immune system, whereas naive T cells and virus-specific memory CD8 (+) T cells express little or no Mac-1 when exposed to a virus (3). Variations at the ITGAM gene, which encodes for the CD11b chain of the Mac-1 integrin, is one of the main genetic risk factors involved in systemic lupus erythematosus /SLE disorder (4).

References

1. Rosetti, F., & Mayadas, T. N. (2016). The many faces of Mac-1 in autoimmune disease. Immunol Rev, 269(1), 175-193. doi:10.1111/imr.12373

2. Kim, D., Kim, T. H., Wu, G., Park, B. K., Ha, J. H., Kim, Y. S., . . . Kwon, H. J. (2016). Extracellular Release of CD11b by TLR9 Stimulation in Macrophages. PLoS One, 11(3), e0150677. doi:10.1371/journal.pone.0150677

3. Christensen, J. E., Andreasen, S. O., Christensen, J. P., & Thomsen, A. R. (2001). CD11b expression as a marker to distinguish between recently activated effector CD8(+) T cells and memory cells. Int Immunol, 13(4), 593-600. doi:10.1093/intimm/13.4.593

4. Nath, S. K., Han, S., Kim-Howard, X., Kelly, J. A., Viswanathan, P., Gilkeson, G. S., . . . Harley, J. B. (2008). A nonsynonymous functional variant in integrin-alpha(M) (encoded by ITGAM) is associated with systemic lupus erythematosus. Nat Genet, 40(2), 152-154. doi:10.1038/ng.71

Alternate Names

CD11b, Integrin alpha M, ITGAM

Gene Symbol

ITGAM

Additional CD11b/Integrin alpha M Products

Product Documents for Human CD11b ELISA Kit (Colorimetric)

Product Datasheets

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COA

Product Specific Notices for Human CD11b ELISA Kit (Colorimetric)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.

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