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Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

R&D Systems, part of Bio-Techne | Catalog # DPTX30B

R&D Systems, part of Bio-Techne
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DPTX30B

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Key Product Details

Assay Length

5.0 hours

Sample Type & Volume Required Per Well

Serum-free Cell Culture Supernates (20 µL), EDTA Plasma (20 µL), Saliva (20 µL)

Sensitivity

0.026 ng/mL

Assay Range

0.313-20 ng/mL (Serum-free Cell Culture Supernates, EDTA Plasma, Saliva)

Product Summary for Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

The Quantikine® Human Pentraxin 3/TSG-14 Immunoassay is a 5.0 hour solid-phase ELISA designed to measure human Pentraxin 3 in serum-free cell culture supernates, plasma, and saliva. It contains NS0-expressed recombinant human Pentraxin 3 and antibodies raised against the recombinant protein. Natural human Pentraxin 3 showed linear curves that were parallel to the standard curves obtained using the Quantikine® kit standards. These results indicate that this kit can be used to determine relative mass values for natural human
Pentraxin 3.

Product Specifications

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Reactivity

Human

Specificity

Natural and recombinant human Pentraxin 3

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.

Precision

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

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

EDTA Plasma, Saliva, Serum-free Cell Culture Supernates

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (ng/mL) 2.12 6.03 11.6 2.05 5.86 11.4
Standard Deviation 0.038 0.158 0.140 0.141 0.383 0.500
CV% 1.8 2.6 1.2 6.9 6.5 4.4

Recovery for Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

The recovery of human Pentraxin 3 spiked to levels throughout the range of the assay was evaluated.

Sample Type Average % Recovery Range %
EDTA Plasma (n=4) 99 85-108
Saliva (n=4) 89 79-99
Serum-free Cell Culture Media (n=2) 109 100-120

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human Pentraxin 3 were serially diluted with calibrator diluent to produce samples with values within the dynamic range of the assay.

Human Pentraxin 3/TSG-14 ELISA Linearity
Human Pentraxin 3/TSG-14 ELISA Linearity

Scientific Data Images for Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

Human Pentraxin 3/TSG-14 ELISA Standard Curve

Human Pentraxin 3/TSG-14 ELISA Standard Curve

Human Pentraxin 3/TSG-14 ELISA Standard Curve

Human Pentraxin 3/TSG-14 ELISA Standard Curve

Preparation and Storage

Shipping

The product is shipped at ambient temperature. 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: Pentraxin 3/TSG-14

Pentraxin 3 (PTX3), also known as TNF-stimulated gene 14 (TSG-14), is a secreted glycoprotein belonging to the Pentraxin family of proteins. It is the prototypical long Pentraxin, exhibiting a C-terminal Pentraxin domain characteristic of the family, and a unique N-terminal domain. It is produced by several cell types including endothelial and mononuclear cells. PTX3 acts as a pattern recognition receptor with non-redundant roles in the innate immune response to several microbial agents including the fungal pathogen Aspergillus fumigatus. Overexpression leads to enhanced pro-inflammatory responses. PTX3 is induced in response to LPS and inflammatory cytokines including TNF-alpha and IL-1 beta.

Long Name

Tumor Necrosis Factor Stimulated Gene 14

Alternate Names

PTX3, TSG-14, TSG14

Entrez Gene IDs

5806 (Human); 19288 (Mouse)

Gene Symbol

PTX3

Additional Pentraxin 3/TSG-14 Products

Product Documents for Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human Pentraxin 3/TSG-14 Quantikine ELISA Kit

For research use only

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