SKU: 23761465330

CD21 Recombinant Rabbit mAb (SDT-007-36)

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Description

CD21 Recombinant Rabbit mAb (SDT-007-36)Product Specification Host Rabbit Antigen CD21 Synonyms Complement receptor type 2, Cr2, Complement C3d receptor, Epstein Barr virus receptor (EBV receptor) Immunogen Synthetic Peptide Accession P20023 Clone Number SDT 007 36 Antibody Type Rabbit mAb Isotype IgG Application IHC P Reactivity Hu, Ms Purification Protein A Research Area Immunology Concentration 0. 08 mg ml Molecular Weight 113kDa Conjugation Unconjugated Physical Appearance Liquid

Product Specification


Host Rabbit
Antigen CD21
Synonyms Complement receptor type 2, Cr2, Complement C3d receptor, Epstein-Barr virus receptor (EBV receptor)
Immunogen Synthetic Peptide
Accession P20023
Clone Number SDT-007-36
Antibody Type Rabbit mAb
Isotype IgG
Application IHC-P
Reactivity Hu, Ms
Purification Protein A
Research Area Immunology
Concentration 0.08 mg/ml
Molecular Weight 113kDa
Conjugation Unconjugated
Physical Appearance Liquid
Storage Buffer PBS, 40% Glycerol, 0.05%BSA, 0.03% Proclin 300
Stability & Storage

12 months from date of receipt / reconstitution, -20 °C as supplied

Dilution


application dilution species
IHC-P 1:1000

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.

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Exchange/Return Notes
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SKU: 23761465330

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4.0 ★★★★★
Based on 5 reviews
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Verified Purchase
Stephanie Rager
Pawtucket, US
★★★★★ 5
Good For Heavy Chewers So Far
Color: Onyx Black - Most Durable
Solid quality. My Doberman is a power chewer and I am looking for a toy that he can't destroy in 2 seconds. If a ball lasts more than an hour it is a miracle. It has a sturdy design and is more heavy weight than the other "non-destructible" balls he has. He has only had his ball for one day so we will see how long this ball lasts him. It is the size of a tennis ball, firm, little to no bounce, and seems built for heavy chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
S
Verified Purchase
Scott Gromaski
Los Angeles, US
★★★★★ 5
Great Product, 2 years and running!
Color: Onyx Black - Most Durable
It’s been almost 2 years and my dogs haven’t destroyed them yet. I have a Pitbull and a Pit/Cosro mix. They destroy every toy we’ve given them, except these toys. Great product 100% worth the money
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Reviewed in the United States on March 29, 2026
T
Verified Purchase
Tony Ahearn
Lake Worth, US
★★★★★ 5
Perfect for HEAVY chewers
Color: Onyx Black - Most Durable
My dog is a heavy chewer. Destroys everything that’s not very hard rubber, hard plastic, or hard material. He LOVES this ball. I think it’s his favorite. Plus, it bounces great so you can play with your dog. Very well constructed- probably indestructible or will at least last a very long time. Easily worth the money.
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Reviewed in the United States on February 7, 2026
E
Verified Purchase
Evan J.
Los Angeles, US
★★★★★ 5
The only toy my dogs can’t destroy and love
Color: Onyx Black - Most Durable
I am thrilled to have found one toy my dogs don’t destroy immediately. They have torn up Fenrir hammers, the black kongs of all sizes, the monster k9 stick, nylabones, and they don’t like the goughnut at all (it stinks like a bad tire). This is the first one they both love and haven’t been able to destroy immediately. It does allow little tooth marks, but that’s what makes it fun for them. They are very happy playing with it and I’d say this one was worth every dollar. Update Months Later: We’ve gone through 2/3 now. I got two initially, and one has lasted long term. They still haven’t completely destroyed it. They did destroy a second one quickly so I suspect a flaw in it. They sent me a new one and they took a while, but they did destroy the third to the point we had to throw it away. Despite that, one still remains and our dogs still love it. It’s still the best for the money compared to others. We have two Bully XL’s that are each close to 100 pounds.
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Reviewed in the United States on April 11, 2024
M
Verified Purchase
M. B.
Battle Creek, US
★★★★★ 5
Indestructible
Color: Onyx Black - Most Durable
This is actually indestrutible! Be careful though, it's wicked hard/heavy. It isn't a ball you want banging into things. Use outside!!
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Reviewed in the United States on April 23, 2026

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