• Assay Type

  Solid Phase Sandwich ELISA

• Format

  96-well strip plate

• Range

  62.50 - 4,000 pg/mL

• Sufficient Materials

  For five 96-well plates*

• Specificity

  Please see the

* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.

Ancillary Reagent Kit Available  

DY008, DuoSet ELISA Ancillary Reagent Kit 2 -

This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human Zinc alpha-2-Glycoprotein (ZAG). The suggested diluent is suitable for the analysis of most cell culture supernate, serum, plasma, saliva, urine, and human milk samples. Diluents for complex matrices, such as serum, plasma, saliva, urine, and human milk, should be evaluated prior to use in this DuoSet.

Product Features

• Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time

• Development protocols are provided to guide further assay optimization

• Assay can be customized to your specific needs

• Economical alternative to complete kits

Kit Content

• Capture Antibody

• Detection Antibody

• Recombinant Standard

• Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)

Other Reagents Required

DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # ) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.

The components listed above may be purchased separately:

PBS: (Catalog # ), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na₂HPO₄, 1.5 mM KH₂PO₄, pH 7.2 - 7.4, 0.2 µm filtered

Wash Buffer: (Catalog # ), or 0.05% Tween^® 20 in PBS, pH 7.2-7.4

Reagent Diluent: (Catalog # ), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered

Substrate Solution: 1:1 mixture of Color Reagent A (H₂O₂) and Color Reagent B (Tetramethylbenzidine) (Catalog # )

Stop Solution: 2 N H₂SO₄ (Catalog # )

Microplates: R&D Systems (Catalog # )

Plate Sealers: ELISA Plate Sealers (Catalog # )

Preparation and Storage

• Storage

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

Background: ZAG

ZAG (zinc-alpha  ₂-glycoprotein; also ZA2G) is a 40 kDa, secreted member of the MHC class I family of proteins. It is produced by adipocytes and various epithelial cells that generate exocrine-type secretions. ZAG is reported to stimulate lipid breakdown and thus may play a role in lipid homeostasis. Mature human ZAG is 278 amino acids (aa) in length. It contains one MHC class I antigen region (aa 26-201) and a C2-type Ig-like domain (aa 207-292). Two alternate splice forms exist; one shows a 66 aa substitution for the C-terminal 30 aa, and a second shows a nine Lys substitution for aa 151-298. Mature human ZAG is 60% aa identical to mouse ZAG.

• Entrez Gene IDs:

  563 (Human); 12007 (Mouse); 25294 (Rat);

• Long Name:

  Zinc alpha-2-Glycoprotein

• Aliases:

  alpha-2-glycoprotein 1, zinc; alpha-2-glycoprotein 1, zinc-binding; AZGP1; ZA2G; ZAG; ZAGzn-alpha-2-GP; zinc; zinc-alpha-2-glycoprotein; zn-alpha-2-glycoprotein; ZNGP1