Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

R&D Systems | Catalog # QK0124

R&D Systems
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Key Product Details

Assay Length

80 minutes

Sample Type & Volume Required Per Well

Cell Culture Supernates (25 µL), Cell Lysates (10 µL), Serum (25 µL), EDTA Plasma (25 µL), Heparin Plasma (25 µL)

Sensitivity

5.23 pg/mL

Assay Range

18.8-37.5 pg/mL (Cell Culture Supernates, Cell Lysates, Serum, EDTA Plasma, Heparin Plasma)
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Product Summary for Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

The Quantikine QuicKit Human BAFF/BlyS/TNFSF13B Immunoassay is a one-step, 80-minute solid phase ELISA designed to measure human BAFF levels in cell culture supernates, serum, plasma, and cell lysates. It contains recombinant human BAFF and antibodies raised against the recombinant protein. Results obtained for naturally occurring human BAFF showed linear curves that were parallel to the standard curves obtained using the recombinant QuicKit standards. These results indicate that this kit can be used to determine relative mass values for natural human BAFF.

Product Specifications

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Species

Human

Specificity

Natural and recombinant human BAFF. 

Cross-reactivity

< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.

Interference

No significant interference observed with available related molecules.

精度

Intra-Assay Precision (Precision within an assay) Two samples of known concentration were tested twenty times on one plate to assess&nbsp;intra-assay precision.

Inter-Assay Precision (Precision between assays) Two samples of known concentration were tested in ten separate assays to assess inter-assay precision. Assays were performed by at least five technicians.

Cell Culture Supernates, Cell Lysates, EDTA Plasma, Heparin Plasma, Serum

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 1 2
n 20 20 10 10
Mean (pg/mL) 81.2 605 96.2 558
Standard Deviation 2.28 21.9 10.5 34.3
CV% 2.8 3.6 10.9 6.2

Recovery for Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

The recovery of BAFF is spiked to three different levels in samples throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=2) 97 85-105
EDTA Plasma (n=2) 101 85-110
Heparin Plasma (n=2) 99 81-108
Lysis Buffer (n=1) 125 117-133
Serum (n=2) 95 78-104

Linearity

To assess the linearity of the assay, samples containing high concentrations of BAFF were diluted with Calibrator Diluent RD5-20 (diluted 1:2) to produce samples with values within the dynamic range of the assay. 

Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

Scientific Data Images for Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA Standard Curve

Preparation and Storage

Shipping

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

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: BAFF/BLyS/TNFSF13B

BAFF (B-cell activating factor), also known as BLyS, TALL-1, THANK, and TNFSF13B, is a TNF superfamily ligand that plays a critical role in the development and survival of B lineage cells. It can be expressed as a homotrimer or as a heteromer in association with the related protein APRIL. It is produced by many hematopoietic cell types, and a soluble form can be released by activated neutrophils. Both BAFF and APRIL signal through the receptors BCMA and TACI, and BAFF additionally signals through BAFF R. Mice that overexpress BAFF exhibit elevated B cell numbers, increased formation and size of germinal centers, and symptoms of autoimmunity. In addition, BAFF costimulates T cell activation, promotes a Th1 biased immune response, and promotes the expansion of Treg cells.

Long Name

B cell Activating Factor

Alternate Names

BLyS, CD257, TALL1, THANK, TNFSF13B, ZTNF4

Entrez Gene IDs

10673 (Human); 24099 (Mouse); 498666 (Rat); 102123214 (Cynomolgus Monkey)

Gene Symbol

TNFSF13B

Additional BAFF/BLyS/TNFSF13B Products

Product Documents for Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human BAFF/BlyS/TNFSF13B Quantikine QuicKit ELISA

For research use only

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