SKU: 22304551484

Alexa Fluor® 647 Mouse Anti-Human CD21 Antibody (S-764-18)

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Description

Alexa Fluor® 647 Mouse Anti-Human CD21 Antibody (S-764-18)Product Specification Host Mouse Antigen CD21 Synonyms Complement receptor type 2, Cr2, Complement C3d receptor, Epstein Barr virus receptor (EBV receptor) Immunogen Recombinant Protein Location Cell membrane Accession P20023 Clone Number S 764 18 Antibody Type Mouse mAb Isotype IgG1,k Application FCM Reactivity Hu Purification Protein G Concentration 0. 02mg ml Conjugation Alexa Fluor 647 Physical Appearance Liquid Storage Buffer PBS, 0. 1% BSA, 0.

Product Specification


Host Mouse
Antigen CD21
Synonyms Complement receptor type 2, Cr2, Complement C3d receptor, Epstein-Barr virus receptor (EBV receptor)
Immunogen Recombinant Protein
Location Cell membrane
Accession P20023
Clone Number S-764-18
Antibody Type Mouse mAb
Isotype IgG1,k
Application FCM
Reactivity Hu
Purification Protein G
Concentration 0.02mg/ml
Conjugation Alexa Fluor® 647
Physical Appearance Liquid
Storage Buffer PBS, 0.1% BSA, 0.01% Proclin 300
Stability & Storage 12 months from date of receipt / reconstitution, 2 to 8 °C as supplied.

Dilution


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

Background

CD21 is involved in the complement system. It binds to iC3b (inactive derivative of C3b), C3dg, or C3d.B cells express CD21 receptors on their surfaces, allowing the complement system to play a role in B-cell activation and maturation. CD21 interacts with CD19 and on mature B cells forms a complex with CD81 (TAPA-1). The CD21-CD19-CD81 complex is often called the B cell co-receptor complex, because CD21 binds to opsonized antigens through attached C3d (or iC3b or C3dg) when the B-cell receptor binds antigen. This results in the B cell having greatly enhanced response to the antigen. Epstein-Barr virus (EBV) can bind CD21, enabling EBV to enter and infect B cells.

Shipping Notes
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Exchange/Return Notes
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SKU: 22304551484

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4.6 ★★★★★
Based on 14 reviews
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Product Reviews
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Verified Purchase
Stephanie P.
Draper, US
★★★★★ 1
Not worth the money
Color: 1PC, Color: 1PC
DO NOY BUY!! It lasted not even 3 minutes with my 6 year old rottie. She bit right through the nose and pulled out the stuffing. Don't waste your money!! I would give it zero stars if I could!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
K
Verified Purchase
KATHLEEN PATTERSON
Carnegie, US
★★★★★ 1
Not good for an aggressive chewer
Color: 1PC
This toy is not indestructible. My little Aussie had one ear off and its neck cut in less then 6 hours and by the next day he had the foot chewed off. It is cute and he loved it, but it is stuffed and not really safe for an aggressive chewer.
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Reviewed in the United States on February 12, 2026
N
Verified Purchase
Natasha Bowman
Louisville, US
★★★★★ 3
It is not a good product for a dog. I didn’t even last five minutes.
Color: 1PC, Color: 1PC
I received this package and I just gave it to my dog. Doesn’t last five minutes. It’s already tore up.
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Reviewed in the United States on June 6, 2026
A
Verified Purchase
Amber
Natrona Heights, US
★★★★★ 5
Totally worth the good price!
Size: 6 inch (Pack of 1), Style: Rabbit
My little shi-tzu has a favorite toy. It’s a stuffed lamb that she has, over time, completely torn to shreds. I needed something cheap on another order to get same day shipping, and I’m now tickled to pieces that I thought to find her something new to play with! When the box arrived, I called my little Mocha and built-up the opening of the box letting her know she had something in there. We never really get to buy her anything, so this was just too much fun 😂 As soon as I picked it up, I planned to toss it for her cause she loves to fetch things. Yeah, didn’t happen. She was so excited, she had this bunny out of my hands before they made it out of the box! Love that it’s made for dogs, and comes without things you might need to worry about, like eye buttons popping off, etc. The little tail did come off pretty quickly and since it was small, I tossed it. The bunny itself is played with at least once or twice daily, and she hasn’t broken through to the stuffing yet. So, for a cheap dog toy, it’s holding up really well. Happy with this purchase and would order something from them again.
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Reviewed in the United States on February 14, 2018
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Adorable, but probably not for medium+ dogs
Size: 6 inch (Pack of 1), Style: Rabbit
I got this for my 20 and 30 pound dogs to play with, and though I didn't really expect for it to be a durable or long-term toy for them, I think it felt like it was well-made and would probably suit dogs that are up to 15 pounds the best. It felt better than other dog toys in this price point but was filled with holes already after the first time my dog played with it on his own, which I think is probably more of a fabric issue than an actual quality issue, because it was more of a teeth puncture than seams ripping. I hope this helps! I would definitely recommend it to anyone with a small breed dog who doesn't have the same bite strength .
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Reviewed in the United States on September 22, 2023

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