SKU: 80889149828

Alexa Fluor® 700 Mouse Anti-Human CD21 Antibody (S-764-18)

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Description

Alexa Fluor® 700 Mouse Anti-Human CD21 Antibody (S-764-18)Product Specification Host Mouse Antigen CD21 Synonyms Complement receptor type 2; Complement C3d receptor; Epstein Barr virus receptor (EBV receptor); C3DR; CR2 Immunogen Recombinant Protein Location Cell membrane Accession P20023 Clone Number S 764 18 Antibody Type Mouse mAb Isotype IgG1,k Application FCM Reactivity Hu Positive Sample Human PBMC Purification Protein G Concentration 0. 2 mg ml Conjugation Alexa Fluor 700 Physical Appearance Liquid

Product Specification


Host Mouse
Antigen CD21
Synonyms Complement receptor type 2; Complement C3d receptor; Epstein-Barr virus receptor (EBV receptor); C3DR; CR2
Immunogen Recombinant Protein
Location Cell membrane
Accession P20023
Clone Number S-764-18
Antibody Type Mouse mAb
Isotype IgG1,k
Application FCM
Reactivity Hu
Positive Sample Human PBMC
Purification Protein G
Concentration 0.2 mg/ml
Conjugation Alexa Fluor® 700
Physical Appearance Liquid
Storage Buffer

PBS, 1% BSA, 0.3% Proclin 300

Stability & Storage

12 months from date of receipt / reconstitution, 2 to 8 °C as supplied

Dilution


application dilution species
FCM 5μl per million cells in 100μl volume Hu

Background

CD21, also known as complement receptor type 2 (CR2), is a ~145 kDa membrane glycoprotein expressed mainly on mature B cells and follicular dendritic cells that functions as the principal cellular receptor for complement fragments such as C3d and for the Epstein–Barr virus gp350/220 glycoprotein, thereby bridging innate and adaptive immunity by forming the CD19/CD21/CD81 coreceptor complex that lowers the B-cell receptor signaling threshold, promotes B-cell activation, proliferation, antibody production and antigen presentation, and also participates in retaining immune complexes in germinal centers, while its soluble ectodomain (sCD21) released by metalloprotease shedding circulates as an immunomodulatory decoy that can either enhance or suppress immune responses depending on context and is dysregulated in various infectious, neoplastic and autoimmune disorders.

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Exchange/Return Notes
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SKU: 80889149828

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4.2 ★★★★★
Based on 6 reviews
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Verified Purchase
Mickey
Grantham, US
★★★★★ 4
It worked great until I dropped it
Color: Red/Battery
It was good until I dropped it on the floor and the cutting surface bent it would no longer open cans
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
L
Verified Purchase
Lady B.
Belleville, US
★★★★★ 5
Such a convenient little tool
Color: Red/Battery
Once I figured out how to use it, I wondered what took me so long to purchase it. Very easy to get the hang of using. Not too fast, not too heavy, not too noisy, just perfect can opener without all the hardworking and spilling contents all over the place.
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Reviewed in the United States on April 4, 2026
L
Verified Purchase
Lola G
Alexandria, US
★★★★★ 1
Don’t buy it
Color: Red/Battery
Stoped working after 6 months. I wish I had purchased the same one I had, Kitchen Mama, but the price was better for Circle Joy. Silly me I won’t be fooled again. I have arthritis and can’t use manual openers. This is going in the trash today. Btw- I only use it 1 or 2 times a week.
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Reviewed in the United States on March 4, 2026
D
Verified Purchase
Dorothy Woodall Peterson
Houston, US
★★★★★ 5
Excellent can opener.
Color: Red/Battery
Love it! Works like a charm. I have arthritis which made opening cans with the type I’d used for years very hard. I didn’t want one on the counter, this fits perfectly in a drawer. I know a couple our friends have ordered one.
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Reviewed in the United States on March 31, 2026
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Verified Purchase
james rodriguez
Cuba, US
★★★★★ 2
Stopped working
Color: Red/Battery
It worked good at first but after a while it stopped working.
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Reviewed in the United States on May 19, 2026

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