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Human Serpin A12 Quantikine ELISA Kit

R&D Systems, part of Bio-Techne | Catalog # DSA120

R&D Systems, part of Bio-Techne
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DSA120

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Key Product Details

Assay Length

4.5 hours

Sample Type & Volume Required Per Well

Cell Culture Supernates (50 µL), Serum (50 µL), EDTA Plasma (50 µL), Heparin Plasma (50 µL), Saliva (50 µL), Urine (50 µL), Human Milk (50 µL)

Sensitivity

14.6 pg/mL

Assay Range

31.3-2000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Saliva, Urine, Human Milk)

Product Summary for Human Serpin A12 Quantikine ELISA Kit

The Quantikine Human Serpin A12/Vaspin Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human Serpin A12 in cell culture supernates, serum, plasma, saliva, urine, and human milk. It contains NS0-expressed recombinant human Serpin A12 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human Serpin A12 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 naturally occurring human Serpin A12.

Product Specifications

Assay Type

Solid Phase Sandwich ELISA

Format

96-well strip plate

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Reactivity

Human

Specificity

Natural and recombinant human Serpin A12.

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 using two lots of components.

Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Human Milk, Saliva, Serum, Urine

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 170 531 1061 173 523 1033
Standard Deviation 8.57 10.6 39.9 11.2 30.6 66.6
CV% 5.0 2.0 3.8 6.5 5.9 6.4

Recovery for Human Serpin A12 Quantikine ELISA Kit

The recovery of human Serpin A12 spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 98 92-107
EDTA Plasma (n=4) 90 80-97
Heparin Plasma (n=4) 92 84-98
Serum (n=4) 92 85-99
Urine (n=4) 93 83-100

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human Serpin A12 were diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.

Human Serpin A12 ELISA Linearity

Scientific Data Images for Human Serpin A12 Quantikine ELISA Kit

Human Serpin A12 ELISA Standard Curve

Human Serpin A12 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: Serpin A12

The human serpin superfamily consists of at least 35 members that target not only serine proteases, but also selected cysteine proteases and non-protease proteins. Serpins bind the protease active site resulting in a major conformational rearrangement that traps the enzyme in a covalent acyl-enzyme intermediate. As protease inhibitors, serpins have an array of functions including regulating blood clotting, the complement pathway, extracellular matrix remodeling, and cell motility. They are also involved in activities that extend beyond their ability to inhibit proteases. For instance, they may also regulate blood pressure, angiogenesis, or act as storage/transport proteins.

Alternate Names

OL-64, Vaspin

Entrez Gene IDs

145264 (Human); 68054 (Mouse); 191570 (Rat)

Gene Symbol

SERPINA12

Additional Serpin A12 Products

Product Documents for Human Serpin A12 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 Serpin A12 Quantikine ELISA Kit

For research use only

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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.