Astana Biomed Group, an authorized Abcam distributor in Central Asia

Human CD14 ELISA Kit (ab208983)

Key features and details

  • One-wash 90 minute protocol
  • Sensitivity: 4 pg/ml
  • Range: 31.3 pg/ml - 2000 pg/ml
  • Sample type: Cell culture supernatant, Cit plasma, EDTA Plasma, Hep Plasma, Serum
  • Detection method: Colorimetric
  • Assay type: Sandwich (quantitative)
  • Reacts with: Human

Overview

  • Product name

    Human CD14 ELISA Kit
    See all CD14 kits

  • Detection method

    Colorimetric

  • Precision

    Intra-assay
    Sample n Mean SD CV%
    Human serum 8 2.8%
    Inter-assay
    Sample n Mean SD CV%
    Human serum 3 2.1%

  • Sample type

    Cell culture supernatant, Serum, Hep Plasma, EDTA Plasma, Cit plasma

  • Assay type

    Sandwich (quantitative)

  • Sensitivity

    4 pg/ml

  • Range

    31.3 pg/ml - 2000 pg/ml

  • Recovery

    Sample specific recovery
    Sample type Average % Range
    Cell culture supernatant 102 95% - 106%
    Serum 110 104% - 114%
    Hep Plasma 109 106% - 111%
    EDTA Plasma 110 105% - 115%
    Cit plasma 109 99% - 116%

  • Assay time

    1h 30m

  • Assay duration

    One step assay

  • Species reactivity

    Reacts with: Human
    Does not react with: Goat, Cow, Pig

  • Product overview

    Human CD14 ELISA Kit (ab208983) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of CD14 protein in cell culture supernatant, cit plasma, edta plasma, hep plasma, and serum. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human CD14 with 4 pg/ml sensitivity.


    SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:


            - Single-wash protocol reduces assay time to 90 minutes or less
            - High sensitivity, specificity and reproducibility from superior antibodies
            - Fully validated in biological samples
            - 96-wells plate breakable into 12 x 8 wells strips


    A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.

  • Notes

    CD14 is a LPS-binding glycoprotein primarily expressed on myeloid cells. In response to a gram negative bacterial infection, LPS-activated CD14 leads to the production of inflammatory cytokines. CD14 plays a role in additional cellular functions, including recognition of peptidylglycan from gram positive cells and binding of apoptotic cells to induce phagocytosis.

  • Platform

    Microplate (12 x 8 well strips)

Properties

Images

  • Other - Human CD14 ELISA Kit (ab208983)
    Other - Human CD14 ELISA Kit (ab208983)

    SimpleStep ELISA technology allows the formation of the antibody-antigen complex in one single step, reducing assay time to 90 minutes. Add samples or standards and antibody mix to wells all at once, incubate, wash, and add your final substrate. See protocol for a detailed step-by-step guide.

     

  • House CD14 standard curve comparison data.
    House CD14 standard curve comparison data.

    Standard curve comparison between human CD14 SimpleStep ELISA® kit and traditional ELISA kit from leading competitor. SimpleStep ELISA kit shows a 30-fold increase in sensitivity.

  • Example of human CD14 standard curve in Sample Diluent NS.
    Example of human CD14 standard curve in Sample Diluent NS.

    Background-subtracted data values (mean +/- SD) are graphed.

  • Interpolated concentrations of native CD14 in human serum and plasma samples.
    Interpolated concentrations of native CD14 in human serum and plasma samples.

    The concentrations of CD14 were measured in duplicates, interpolated from the CD14 standard curves and corrected for sample dilution. Undiluted samples are as follows: serum 1:625, plasma (citrate) 1:800, plasma (heparin) 1:800 and plasma (EDTA) 1:800. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean CD14 concentration was determined to be 897 ng/mL in serum, 1128 ng/mL in plasma (citrate), 1,195 ng/mL in plasma (heparin) and 1,212 ng/mL in plasma (EDTA).

  • Interpolated concentrations of native CD14 in human stimulated and unstimulated PBMC.
    Interpolated concentrations of native CD14 in human stimulated and unstimulated PBMC.

    The concentrations of CD14 were measured, interpolated from the CD14 standard curves and corrected for sample dilution. Undiluted samples are as follows: PHA stimulated PBMC 25% and unstimulated PBMC 25%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean CD14 concentration was determined to be 7.91 ng/mL in PHA stimulated PBMC and 6.92 ng/mL in unstimulated PBMC.

  • Serum from ten individual healthy human male donors was measured in duplicate.
    Serum from ten individual healthy human male donors was measured in duplicate.

    Interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean CD14 concentration was determined to be 1,360 ng/mL with a range of 429 – 2,955 ng/mL.

  • Sandwich ELISA - Human CD14 ELISA Kit (ab208983)
    Sandwich ELISA - Human CD14 ELISA Kit (ab208983)
    To learn more about the advantages of recombinant antibodies see here.

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