Anti-hCD14-IgA is a chimeric monoclonal antibody specific for human CD14. It was generated by combining the constant domains of the human IgA molecule with murine variable regions. This antibody has been selected for its ability to efficiently neutralize the biological activity of TLR2 or TLR4. The neutralizing activity of this IgA antibody was determined using HEK-Blue™ TLR2 and HEK-Blue™ TLR4 Cells.

Product change notification

October, 18th 2017
The IgA version of this anti-hCD14 antibody has been replaced by an IgG isotype (Anti-hCD14-IgG).


Clonality: Monoclonal antibody
Neutralizing TLR2 or TLR4-induced cellular activation. It can also be used for flow cytometry.
Specificity: Human CD14
Clone: D3B8
Isotype: Human IgA2
Formulation: 0.2 μm filtered solution in Tris HCl with glycine, saccharose and stabilizing agents


100 μg purified anti-hCD14-IgA antibody, provided azide-free and lyophilized

Product is shipped at room temperature. Store lyophilized antibody at -20 °C. Lyophilized product is stable for at least 1 year.


CD14 is a glycosylphosphatidylinositol (GPI)-anchored membrane protein which acts as a bacterial pattern recognition receptor [1]. CD14 is found on cells derived from the monocyte/macrophage lineage, as well as neutrophils and B lymphocytes. CD14 serves as a member of the heteromeric lipopolysaccharide (LPS) receptor complex that also contains TLR4 and MD2 [2].

CD14 binds LPS but is not capable of initiating a transmembrane activation signal since it does not contain a cytoplasmic domain. Upon LPS binding, CD14 physically associates with TLR4 which in turn transduces the signal. CD14 was also shown to interact with TLR2 in response to various microbial infections [3].

1. Pugin J. et al., 1994. CD14 is a pattern recognition receptor. Immunity. 1(6):509-16.
2. Da Silva Correia J. et al., 2001. Lipopolysaccharide is in close proximity to each of the proteins in its membrane receptor complex. transfer from CD14 to TLR4 and MD-2. J Biol Chem. 276(24): 21129- 35.
3. Aderem A. & Ulevitch R.J. , 2000. Toll-like receptors in the induction of the innate immune response. Nature. 406(6797):782-7.


Recent articles using InvivoGen Anti-hCD14-IgA



Description Human IgA2 against human CD14
Cat. Codemaba-hcd14
Unit Size100 µg
Price For price or distributor address,
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