Human sTransferrin Receptor/sTfR Quantikine ELISA, RUO

• Applications: ELISA

Human sTransferrin Receptor/sTfR Quantikine ELISA, RUO Summary

• Background: The Quantikine Human sTfR Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human sTfR in serum and plasma. Results obtained using natural human sTfR 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 sTfR.
• Specificity: This assay recognizes natural human sTfR.
• Inter-Assay: See PDF Datasheet for details
• Intra-Assay: See PDF Datasheet for details
• Spike Recovery: See PDF Datasheet for details
• Sample Volume: See PDF Datasheet for details

Applications/Dilutions

• Dilutions:
  • ELISA
• Application Notes: No significant interference observed with available related molecules.

Packaging, Storage & Formulations

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

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Human sTransferrin Receptor/sTfR Quantikine ELISA, RUO

• CD71 antigen
• CD71
• CD71TRFR
• p90
• T9
• TfR (Transferrin R)
• TfR (TransferrinR)
• TfR
• TFR1
• TFRC
• TR
• transferrin receptor (p90, CD71)
• transferrin receptor protein 1
• TRFR

Background

Transferrin receptors are transmembrane, homodimeric proteins that play a role in iron transport, uptake, and storage. TfR is an essential receptor, found on almost all cell types, regulated by intracellular iron concentration, and has a high affiinity for transferrin. Soluble TfR (sTfR) arises from the proteolysis of TfR into monomers that can be measured in plasma and serum. TfR2 has limited tissue distribution (hepatocytes and enterocytes), is regulated by the cell cycle, and binds transferrin poorly.

FAQs for TfR (Transferrin R) (DTFRU0). (Showing 1 - 1 of 1 FAQ).

1. What is the difference between the Quantikine and Duoset ELISA kits?
   • Our Quantikine kits are fully optimized and validated for the sample types listed on the product specific webpage and datasheet, as this can vary between kits. Each kit is supplied ready to use with one pre-coated 96-well plate, a detection antibody directly conjugated to HRP, and all other necessary reagents. These kits are ideal for researchers who want the convenience of a ready to use and optimized ELISA product. Some of these kits are also available prepackaged in larger 6 and 50 plate sizes.Our DuoSet Kits, in contrast, are ELISA development kits containing the capture and detection antibody, the mass-value calibrated standard, and streptavidin-HRP to prepare approximately 5 or 15 plates. Ancillary reagents will need to be used/purchased, and for most kits, we will recommend one of our Ancillary Reagent Kits, which contain the reagents we use ourselves in-house. DuoSet kits are validated only for cell culture supernatant samples and therefore require further development and validation for accurate measurement in more complex samples such as serum and plasma. Our DuoSet Kits offer an economical, flexible alternative for the experienced ELISA user.