• Assay Type

  Solid Phase Sandwich ELISA

• Format

  96-well strip plate

• Sample Type & Volume Required

  100 µL

• Range

  3.91 - 250 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

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

  PBS: (Catalog # ), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na  ₂HPO  ₄, 1.5 mM KH  ₂PO  ₄, pH 7.2 - 7.4, 0.2 µm filtered  
 
  Wash Buffer: (Catalog # ), or equivalent  
 
  Reagent Diluent*  
 
  Blocking Buffer*  
 
  Substrate Solution: 1:1 mixture of Color Reagent A (H  ₂O  ₂) and Color Reagent B (Tetramethylbenzidine) (Catalog # )  
 
  Stop Solution: 2 N H  ₂SO  ₄ (Catalog # )  
 
  Microplates: R&D Systems (Catalog # ), or equivalent  
 
  Plate Sealers: ELISA Plate Sealers (Catalog # ), or equivalent  
 

*For the Reagent Diluent and Blocking Buffer recommended for a specific DuoSet ELISA Development Kit, please see the product

Preparation and Storage

• Storage

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

Background: S100A13

S100A13 is an 11 kDa member of the S100 (soluble in 100% saturated ammonium sulfate) family of vertebrate EF-hand Ca²⁺-binding proteins. It is widely expressed as a homodimer with two 98 amino acid (aa) long subunits. Human S100A13 shares 83%, 90%, 91%, 87%, 78% and 47% aa identity with mouse, rat, cow, dog, opossum, and chicken S100A13, respectively. Like other S100 proteins, S100A13 is small and generally acidic, but contains a basic residue rich sequence at the C-terminus, and two EF hand motifs that bind with Ca²⁺ differing affinities.

Some S100 proteins, including S100A13, are able to bind the cell surface receptor for advanced glycation endproducts (RAGE). Despite lacking a signal sequence, S100A13 plays an important role in Cu²⁺-dependent export of FGF-1 (FGF acidic) and IL-1 alpha from the cell in response to stresses such as heat shock, anoxia and starvation. Binding of copper is necessary for formation of a multiprotein complex between S100A13, FGF-1 and p40 synaptotagmin1 (syt1). Cu²⁺ ions supplied by S100A13 are thought to oxidize and downregulate the activity of FGF-1 prior to export. calcium influx may also play a similar role in FGF-1 release from neuronal cells. With FGF-1 and syt1, S100A13 likely perturbs the membrane, which allows the S100A13 protein complex to exit the cell. S100A13 has been proposed as a marker for angiogenesis in tumors and endometrium, due to its role in stress induced export of FGF-1.

• Entrez Gene IDs:

  6284 (Human); 20196 (Mouse); 295213 (Rat);

• Long Name:

  S100 Calcium Binding Protein

• Aliases:

  S100 calcium binding protein A13; S100 calcium-binding protein A13protein S100-A13; S100A13