• Product name

    Human LBP ELISA Kit
    See all LBP kits
  • Detection method

  • Precision

    Sample n Mean SD CV%
    1 16 15.3ng/ml 0.66 4.3%
    2 16 38ng/ml 1.9 5%
    3 16 85ng/ml 4.76 5.6%
    Sample n Mean SD CV%
    1 24 20ng/ml 1.48 7.4%
    2 24 42ng/ml 2.77 6.6%
    3 24 93ng/ml 6.7 7.2%
  • Sample type

    Cell culture supernatant, Serum, Cell Lysate, Heparin Plasma, EDTA Plasma
  • Assay type

    Sandwich (quantitative)
  • Sensitivity

    < 50 pg/ml
  • Range

    0.78 ng/ml - 50 ng/ml
  • Assay time

    3h 30m
  • Assay duration

    Multiple steps standard assay
  • Species reactivity

    Reacts with: Human
  • Product overview

    The Human LBP Enzyme-Linked Immunosorbent Assay (ELISA) kit (ab213805) is designed for the quantitative detection of Human LBP in cell culture supernatants, cell lysates, serum and plasma (heparin, EDTA).

    The ELISA kit is based on standard sandwich enzyme-linked immunosorbent assay technology. A monoclonal antibody from mouse specific for LBP has been pre-coated onto 96-well plates. Standards (Expression system for standard: NSO; Immunogen sequence: A26-V481) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for LBP is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Human LBP amount of sample captured in plate.

  • Notes

    Lipopolysaccharide binding protein is a protein that in humans is encoded by the LBP gene. This gene is mapped to 20q11.23. LBP is a soluble acute-phase protein that binds to bacterial lipopolysaccharide (or LPS) to elicit immune responses by presenting the LPS to important cell surface pattern recognition receptors called CD14 and TLR4. It is present in the cerebrospinal fluid of patients with pneumococcal meningitis. The protein encoded by this gene is involved in the acute phase immunologic response to gram-negative bacterial infections. LBP is made in the liver during the acute phase of infections and is thought to function as a carrier for LPS and to help control LPS-dependent monocyte responses.

  • Tested applications

    Suitable for: Sandwich ELISAmore details
  • Platform

    Pre-coated microplate (12 x 8 well strips)


  • Storage instructions

    Store at -20°C. Please refer to protocols.
  • Components Identifier 1 x 96 tests
    ABC Diluent Buffer Blue Cap 1 x 12ml
    Adhesive Plate Seal 4 units
    Antibody Diluent Buffer Green Cap 1 x 12ml
    Anti-Human LBP coated Microplate (12 x 8 wells) 1 unit
    Avidin-Biotin-Peroxidase Complex (ABC) 1 x 130µl
    Biotinylated anti-Human LBP antibody 1 x 130µl
    Lyophilized recombinant Human LBP standard 2 x 50ng
    Sample Diluent Buffer Green Cap 1 x 30ml
    TMB Color Developing Agent Black Cap 1 x 10ml
    TMB Stop Solution Yellow Cap 1 x 10ml
  • Research areas

  • Function

    Binds to the lipid A moiety of bacterial lipopolysaccharides (LPS), a glycolipid present in the outer membrane of all Gram-negative bacteria. The LBP/LPS complex seems to interact with the CD14 receptor.
  • Sequence similarities

    Belongs to the BPI/LBP/Plunc superfamily. BPI/LBP family.
  • Cellular localization

  • Information by UniProt
  • Alternative names

    • BPI fold containing family D, member 2
    • Bpifd2
    • LBP
    • LBP1
    • Lipopolysaccharide binding protein
    • Lipopolysaccharide-binding protein
    • LPS binding protein
    • Ly88
    • MGC22233
    • OTTHUMP00000030965
    • RP23-407H16.4
    see all
  • Database links


Our Abpromise guarantee covers the use of ab213805 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.


  • Human LBP ELISA Kit (ab213805) Standard Curve



This product has been referenced in:

  • Tran TTT  et al. APOE genotype influences the gut microbiome structure and function in humans and mice: relevance for Alzheimer's disease pathophysiology. FASEB J N/A:fj201900071R (2019). Read more (PubMed: 30958695) »
  • Shen L  et al. TLR4/NF-?B axis signaling pathway-dependent up-regulation of miR-625-5p contributes to human intervertebral disc degeneration by targeting COL1A1. Am J Transl Res 11:1374-1388 (2019). Read more (PubMed: 30972168) »
See all 2 Publications for this product

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