SKU: 60888571658

CD21 Recombinant Rabbit mAb,PBS Only (SDT-007-36)

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Description

CD21 Recombinant Rabbit mAb,PBS Only (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 1 mg ml Molecular Weight 113kDa Conjugation Unconjugated Physical Appearance Liquid Storage

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 1 mg/ml
Molecular Weight

113kDa

Conjugation Unconjugated
Physical Appearance Liquid
Storage Buffer

PBS

Stability & Storage

12 months from date of receipt, 4°C as supplied

Dilution


application dilution species
IHC-P 1:1000 Hu, Ms

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: 60888571658

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4.2 ★★★★★
Based on 16 reviews
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Verified Purchase
Jinya Ramen Bar
Louisville, US
★★★★★ 5
Great Cabin Filter Upgrade
Style: BE-729H 1-Pack, Style: BE-729H 1-Pack
I recently replaced my old cabin air filter with this one, and the difference was noticeable right away. Installation was quick and straightforward took less than 10 minutes with no special tools needed. What I appreciate most is the air quality improvement. The airflow feels stronger, and there’s a clear reduction in dust, odors, and outside pollution entering the cabin. If you’re looking for an easy, affordable upgrade that actually makes a difference in everyday driving comfort, this cabin filter is definitely worth it.
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Reviewed in the United States on November 19, 2025
R
Verified Purchase
Ramr Imari
Battle Creek, US
★★★★★ 5
Excellent Air filter - Easy installation.
Style: BE-743 1-Pack
Excellent AC and Heater Cabinet odor defense air filter. I noticed immediately the smell coming out of the vents was fresher and the musty smell that was coming from the vents was crisper and cleaner. Very easy installation that you can do yourself and don’t need to pay a shop to do. The price is one of the best online and coms in quickly. It’s very sturdy, filter quality is excellent and it definitely improves the air quality and flow in your car. Fits perfectly like any OEM filter, this is a great buy for the price of an installation that will take you Les then 10 minutes to do yourself.
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Reviewed in the United States on May 21, 2026
K
Verified Purchase
Khaleesi
Charlottesville, US
★★★★★ 5
Great filter and easy installation
Style: BE-159 1-Pack, Style: BE-159 1-Pack
For my 2016 Hyundai Sonata Hybrid Limited. I cannot believe I paid so much more for a brand-name filter that does the same thing as this one. It is made of the same material as the dealer one I took out. Very easy to install, cant believe I paid for this to be done in the past with oil changes. Requires no tools and did not get dirty at all. No mechanical skills needed, especially if you run into trouble and can use YouTube. PROS - great quality, cannot tell that it is after-market - very professionally made, not irregularities seen - excellent fit in position, no adjustment needed - very easy to install, cannot believe I paid to have this done in the past - no mechanical skills needed to install - great price compared to what big name productions want for the same thing - cannot tell the difference in air quality between this and the dealer filter I took out - removes outside odor completely - did not require tools are getting dirty CONS - None
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Reviewed in the United States on May 30, 2026
J
Verified Purchase
JimXeod
Houston, US
★★★★★ 5
Fits perfect and works as designed. Flows like OEM and looks well made.
Style: BE-553B 1-Pack
This filter is very comparable to the stock filter. Fits the BMW G20 just like OEM. I would not say it is two times "heavier" as advertised on the box, but it is very comparable to stock. It's the same weight and similar construction. BMW has a very robust cabin filter. This will be my go to. I did purchase another aftermarket cabin filter that fit well, but was thin, flimsy and had a bad chemical odor. This one is fine and airflow is the same as OEM. I change them every year or so. I don't worry too much about longevity with cabin filters personally.
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Reviewed in the United States on May 15, 2026
S
Verified Purchase
S. Phillips
Lowell, US
★★★★★ 4
Good quality but it was slightly longer than original and needed modification.
Style: BE-182 1-Pack
Bought this cabin filter for a 2023 Acura TLX. While the filter seems to be made of quality material, it was just a little too long (about a 1/16 of an inch, so I had to trim it to make it fit so the cover would fit snug. I was able to do that without compromising the filter itself. But this might be an issue for some people
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Reviewed in the United States on May 8, 2026

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