SKU: 67723721376

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.

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Exchange/Return Notes
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SKU: 67723721376

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Boise, US
★★★★★ 5
Puffed out to be fluffiest pillows yet.
Style: Original, Size: Standard/Queen
When I received my two pillows I was concerned they wouldn't be as fluffy as advertised; they came rolled up and shoved in a small box. However, after some time sitting out they are even fluffier than imagined. Firmness is exactly what I wanted and even after my husband folds them, they bounce back to their previous shape.
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Reviewed in the United States on November 27, 2023
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Amazon Customer
Boise, US
★★★★★ 4
They sleep okay.
Style: Original, Size: Standard/Queen
Wish pillows was more firm but they are okay. Just more firmer.
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Reviewed in the United States on August 10, 2025
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Nicole M Tusa
Natrona Heights, US
★★★★★ 5
Definitely beats sleeping on the floor!
Color: Grey, Size: Twin
I was sleeping on the floor with my dog after she had emergency surgery and this helped me get through those tough couple of weeks. Comfortable and not too heavy. Comes with a bag to store it in and helps make it easier to move around.
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Reviewed in the United States on May 25, 2026
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Ellen H.
Louisville, US
★★★★★ 5
Comfy
Color: Grey, Size: Cot
Very comfortable even for large children and adults.
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Reviewed in the United States on May 16, 2026
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sandra
Lowell, US
★★★★★ 4
Good quality
Color: Grey, Size: Queen
Stays frim. Great for visitors when they spend the night. Easy to store.
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Reviewed in the United States on May 16, 2026

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