- 7E9 (See other available formats)
- Regulatory Status
- Other Names
- Rat IgG2a, κ
- Ave. Rating
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- Product Citations
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CD21, also known as CR2 (complement receptor 2) and C3d receptor, binds C3d and iC3b. It is also a receptor of Epstein-Barr virus. CD35, also known as CR1, binds C3b, iC3b, C4b, and iC4b. CD21/CD35 is primarily expressed on B lymphocytes, mast cells, follicular dendritic cells, macrophages, and activated granulocytes. CD21/CD35 forms part of the B-cell antigen receptor complex with CD19 and CD81 and is involved in signal transduction.Product Details
- Verified Reactivity
- Antibody Type
- Host Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 700 under optimal conditions.
- 0.5 mg/mL
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
FC - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 700 has a maximum emission of 719 nm when it is excited at 633 nm / 635 nm. Prior to using Alexa Fluor® 700 conjugate for flow cytometric analysis, please verify your flow cytometer's capability of exciting and detecting the fluorochrome.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
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- Excitation Laser
Red Laser (633 nm)
(PubMed link indicates BioLegend citation)
- Boackle S, et al. 2001 Immunity 15:775.
- de Andres B, et al. 2012. J. Immunol. 189:2300. PubMed
- Chiu YK, et al. 2014. J Immunol. 193:2207. PubMed
- Koening PA, et al. 2014. J Biol Chem. 289:34490. PubMed
- Radtke AJ, et al. 2020. Proc Natl Acad Sci U S A. 117:33455-65. (SB) PubMed
- Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
- Product Citations
AB_2860649 (BioLegend Cat. No. 123431)
AB_2860650 (BioLegend Cat. No. 123432)
- 145 kD/190 kD type I transmembrane glycoprotein
B cells, follicular dendritic cells
- Signal transduction
- Associated with CD19/CD81. CD21 binds C3d, iC3b, and EBV; CD35 binds C3b, iC3b, C4b, and iC4b.
- Cell Type
- B cells, Dendritic cells
- Biology Area
- Cell Biology, Costimulatory Molecules, Immunology, Neuroinflammation, Neuroscience
- Molecular Family
- Adhesion Molecules, CD Molecules
- Antigen References
1. Kozono Y, et al. 1998. J. Immunol. 160:1562.
2. Shimizu I, et al. 2007. Blood 109:1773.
3. Roozendaal R and MC. Carroll. 2007. Immunol. Rev. 219:157.
- Gene ID
- 12902 View all products for this Gene ID 12946 View all products for this Gene ID
- View information about CD21/35 on UniProt.org
Related Pages & Pathways
Other FormatsView All CD21,CD35 Reagents Request Custom Conjugation
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PE/Cyanine7 anti-mouse CD21/CD35 (CR2/CR1)
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Biotin anti-mouse CD21/CD35 (CR2/CR1)
FITC anti-mouse CD21/CD35 (CR2/CR1)
PE anti-mouse CD21/CD35 (CR2/CR1)
APC anti-mouse CD21/CD35 (CR2/CR1)
Pacific Blue™ anti-mouse CD21/CD35 (CR2/CR1)
PerCP/Cyanine5.5 anti-mouse CD21/CD35 (CR2/CR1)
Brilliant Violet 421™ anti-mouse CD21/CD35 (CR2/CR1)
Alexa Fluor® 647 anti-mouse CD21/CD35 (CR2/CR1)
Alexa Fluor® 594 anti-mouse CD21/CD35 (CR2/CR1)
TotalSeq™-A0107 anti-mouse CD21/CD35 (CR2/CR1)
Alexa Fluor® 700 anti-mouse CD21/CD35 (CR2/CR1)
APC/Fire™ 750 anti-mouse CD21/CD35 (CR2/CR1)
TotalSeq™-C0107 anti-mouse CD21/CD35 (CR2/CR1)
Brilliant Violet 711™ anti-mouse CD21/CD35 (CR2/CR1)
PE/Dazzle™ 594 anti-mouse CD21/CD35 (CR2/CR1)
Brilliant Violet 510™ anti-mouse CD21/CD35 (CR2/CR1)
Ultra-LEAF™ Purified anti-mouse CD21/CD35 (CR2/CR1)