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Human SerpinB9 ELISA Kit (Colorimetric)

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-27286

Novus Biologicals, part of Bio-Techne
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NBP3-27286

Key Product Details

Sample Type & Volume Required Per Well

Serum, plasma, tissue homogenates, cell lysates and other biological fluids (100 uL)

Sensitivity

0.45 ng/mL (example only; lot dependent)

Assay Range

1.56 - 100 ng/mL (example only; lot dependent)

Product Specifications

Assay Type

Sandwich ELISA

Kit Type

ELISA Kit (Colorimetric)

Reactivity

Human

Description

Assay Length: 4.5 hours

Precision

Intra-Assay Precision (Precision within an assay) %CV < 10 (example only; lot dependent)

Inter-Assay Precision (Precision between assays) %CV < 12 (example only; lot dependent)

Scientific Data Images for Human SerpinB9 ELISA Kit (Colorimetric)

ELISA: Human SerpinB9 ELISA Kit (Colorimetric) [NBP3-27286] -

ELISA: Human SerpinB9 ELISA Kit (Colorimetric) [NBP3-27286] - Standard Curve Reference

Kit Contents for Human SerpinB9 ELISA Kit (Colorimetric)

  • Detection Reagent A
  • Detection Reagent B
  • Diluent Buffer
  • Instruction manual
  • Plate sealer for 96 wells
  • Pre-coated 96T strip plate
  • Standard
  • Stop Solution
  • TMB Substrate
  • Wash Buffer (30 x concentrate)

Preparation and Storage

Shipping

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

Stability & Storage

Storage of components varies. See protocol for specific instructions.

Background: SerpinB9

SerpinB9 is a serine proteinase inhibitor of the ovalbumin like B clade of serpins. The mouse orthologue to PI9 is SPI-6. SerpinB9 was first discovered in human bone marrow in a search for serpins similar to SerpinB6. SerpinB9 was identified in lymphocytes, especially natural killer cells and cytotoxic T lymphocytes, cells which also produce and store the apoptosis-inducing enzyme Granzyme B. PI9 was shown to be a potent inhibitor of Granzyme B, working at picamolar efficiencies. PI9 was also shown to inhibit caspase 1, the interleukin 1 converting enzyme, thus blocking IL1 223; production, and decreasing inflammatory processes. Most leukemia cells and many tumor cells produce PI9, leading to speculation that PI9 may help protect tumor cells from destruction by NK and CTL cells. PI9 is also found in placenta, lung, kidney, mast cells, and many tissues and cell lines. In kidney transplant, PI9 is sharply elevated, and in the liver PI9 has been shown to be upregulated by a downstream estrogen promoter. SerpinB9 inhibits Granzyme B, and is cleaved by Granzyme M, as a down regulatory step. SerpinB9 also inhibits the bacterial proteinase subtilisin A, and this may be a protective agent against infections. Neutrophil elastase is also a target of SerpinB9. Like SerpinB6 and SerpinB8, SerpinB9 lacks a signal sequence, and is found mainly in the cytoplasm and nucleus, although it can be detected outside of cells and in serum. The original SerpinB9 sequence described was 379 amino acids in length, with predicted mass of 42.4 kDa and pI of 5.51.

Alternate Names

CAP-3, CAP3PI-9, Cytoplasmic antiproteinase 3, Peptidase inhibitor 9, PI9protease inhibitor 9 (ovalbumin type), serine (or cysteine) proteinase inhibitor, clade B (ovalbumin), member 9, serpin B9, serpin peptidase inhibitor, clade B (ovalbumin), member 9, serpin peptidase inhibitor, clade B, member 9

Gene Symbol

SERPINB9

Additional SerpinB9 Products

Product Documents for Human SerpinB9 ELISA Kit (Colorimetric)

Certificate of Analysis

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

Product Specific Notices for Human SerpinB9 ELISA Kit (Colorimetric)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.

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