Human CD21 DuoSet ELISA, 5 Plate

• Reactivity: Hu
• Applications: ELISA
• Conjugate: Biotin

Human CD21 DuoSet ELISA, 5 Plate Summary

• Source: N/A
• Assay Type: Solid Phase Sandwich ELISA
• 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 CD21 DuoSet ELISA, 5 Plate

• C3DR
• C3DRSLEB9
• CD21 antigen
• CD21
• Complement C3d receptor
• complement component (3d/Epstein Barr virus) receptor 2
• complement receptor type 2
• CR2
• EBV receptor
• Epstein-Barr virus receptor

Background

CD21, also known as complement receptor 2 (CR2), is a 145 kDa transmembrane protein that contains 15 tandem SCR/SUSHI repeats. CD21 is primarily expressed on B cells, follicular dendritic cells, and T cells. It binds the complement component fragments iC3b, C3d, and C3d,g and forms complexes with CD19 and CD35. CD21 is required for germinal center development, antibody production, and B cell tolerance. It also functions as a cellular uptake receptor for Epstein-Barr virus.

FAQs for CD21 (DY4909-05). (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.