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CD21 Antibodies

(Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2))

Choose one of 306 CD21 antibodies from our product listing based on 21 publications and 93 validation images.

Explore reliable CD21 antibodies from a broad selection of renowned manufacturers. Our portfolio enables accurate CD21 detection across multiple species, including Human, Mouse, Pig, Cow, Rat, Dog, Goat, Sheep, African buffalo (Syncerus caffer), Horse, Cat, Monkey, Mule deer (Odocoileus hemionus), Red Deer, and supports diverse research applications such as FACS, IHC, WB, ELISA, IF.

Quickly find the right antibody using our search, filter, and comparison tools. Each product page provides detailed validation data, literature references, and customer feedback. Unlike comparison-only resources, you can conveniently purchase antibodies directly through our site. Choose from polyclonal, monoclonal, or recombinant CD21 antibodies derived from various hosts such as Mouse, Rabbit, Human. Browse our products below and order directly to support your research with confidence.

Alternative names for CD21 are CR2, Cr2, CR1.

Active filters:

  • Target: CD21 (CR2)
  • Primary
Catalog no. Product Reactivity Host / Clonality Application Price & lead time
ABIN1112090
CD21 antibody (PE) CR2 · Primary Antibody Human Mouse Monoclonal Clone HI21a
  • FACS (Flow Cytometry: Listed application)
  • IF (Immunofluorescence: Listed application)
$440.00 View price
  • 100 tests
Delivery in 6 to 13 Business Days Shipping to: United States
ABIN6253867
CD21 antibody (FITC) CR2 · Primary Antibody Human Mouse Monoclonal Clone B-ly4
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
$2,664.75 View price
  • 5 mL
  • 1 mL
Delivery in 8 to 13 Business Days Shipping to: United States
ABIN6253869
CD21 antibody CR2 · Primary Antibody Human Mouse Monoclonal Clone B-ly4
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
$1,653.14 View price
  • 5 mL
  • 1 mL
Delivery in 8 to 13 Business Days Shipping to: United States
ABIN6253870
CD21 antibody (PE) CR2 · Primary Antibody Human Mouse Monoclonal Clone B-ly4
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
$3,214.75 View price
  • 5 mL
  • 1 mL
Delivery in 8 to 13 Business Days Shipping to: United States
ABIN2144821
CD21 antibody (PE) CR2 · Primary Antibody Human Mouse Monoclonal Clone 4ABU32
  • FACS (Flow Cytometry: Validation image available)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • ICC (Immunocytochemistry: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
$202.88 View price
  • 25 tests
Delivery in 12 to 15 Business Days Shipping to: United States
ABIN2144534
CD21 antibody (FITC) CR2 · Primary Antibody Human Mouse Monoclonal Clone 4ABU32
  • FACS (Flow Cytometry: Validation image available)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • ICC (Immunocytochemistry: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
$204.56 View price
  • 25 tests
Delivery in 12 to 15 Business Days Shipping to: United States
ABIN2479247
CD21 antibody CR2 · Primary Antibody Cow, Sheep, Goat, Mule deer (Odocoileus hemionus), Red Deer Mouse Monoclonal Clone CC21
  • FACS (Flow Cytometry: Listed application)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
$437.31 View price
  • 0.1 mg
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN2479252
CD21 antibody (PE) CR2 · Primary Antibody Pig, Cow, African buffalo (Syncerus caffer) Mouse Monoclonal Clone CC51
  • FACS (Flow Cytometry: Listed application)
$810.00 View price
  • 100 tests
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN2479248
CD21 antibody CR2 · Primary Antibody Pig, Cow, African buffalo (Syncerus caffer) Mouse Monoclonal Clone CC51
  • FACS (Flow Cytometry: Listed application)
$437.31 View price
  • 0.1 mg
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN2479257
CD21 antibody CR2 · Primary Antibody Human Mouse Monoclonal Clone 2G9
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • IHC (p) (Immunohistochemistry (Paraffin-embedded Sections): Listed application)
$986.54 View price
  • 1 mL
  • 0.1 mL
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN2479250
CD21 antibody (FITC) CR2 · Primary Antibody Pig, Cow, African buffalo (Syncerus caffer) Mouse Monoclonal Clone CC51
  • FACS (Flow Cytometry: Listed application)
$711.92 View price
  • 0.1 mg
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN2479261
CD21 antibody CR2 · Primary Antibody Human, Horse Mouse Monoclonal Clone Bu33
  • FACS (Flow Cytometry: Listed application)
$572.00 View price
  • 0.2 mg
  • 25 μg
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN7189182
CD21 antibody CR2 · Primary Antibody Human Mouse Monoclonal
  • IHC (Immunohistochemistry: Validation image available)
  • ELISA (ELISA: Listed application)
$234.22 View price
  • 100 μg
  • 50 μg
Delivery in 13 to 17 Business Days Shipping to: United States
ABIN6992488
CD21 antibody (AA 729-957) CR2 · Primary Antibody Human Rabbit Polyclonal
  • FACS (Flow Cytometry: Validation image available)
$281.08 View price
  • 50 tests
  • 100 tests
  • 200 tests
  • 500 tests
Delivery in 13 to 17 Business Days Shipping to: United States
ABIN7490579
Recombinant CD21 antibody CR2 · Primary Antibody Human Human, Rabbit Chimeric Clone DMC280
  • FACS (Flow Cytometry: Validation image available)
  • WB (Western Blotting: Listed application)
$588.01 View price
  • 100 μg
  • 10 μg
  • 500 μg
Delivery in 12 to 15 Business Days Shipping to: United States
ABIN1383837
CD21 antibody CR2 · Primary Antibody Human Mouse Monoclonal Clone B-E5
  • FACS (Flow Cytometry: Listed application)
  • IHC (Immunohistochemistry: Listed application)
$330.99 View price
  • 2 mL
Delivery in 6 to 8 Business Days Shipping to: United States
ABIN1383834
CD21 antibody CR2 · Primary Antibody Human Mouse Monoclonal Clone B-E5
  • FACS (Flow Cytometry: Validation image available)
  • Func (Functional Studies: Listed application)
$368.30 View price
  • 200 μL
Delivery in 6 to 8 Business Days Shipping to: United States
ABIN7598874
CD21 antibody (C-Term) CR2 · Primary Antibody Human Rabbit Monoclonal Clone Q22-S
  • IHC (Immunohistochemistry: Validation image available)
  • IHC (p) (Immunohistochemistry (Paraffin-embedded Sections): Listed application)
$453.75 View price
  • 100 μL
  • 1 mL
  • 200 μL
  • 500 μL
Delivery in 6 to 10 Business Days Shipping to: United States
ABIN135486
CD21 antibody (Biotin) CR2 · Primary Antibody Pig Mouse Monoclonal Clone BB6-11C9-6
  • FACS (Flow Cytometry: Validation image available)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • Sep (Separation: Listed application)
$579.60 View price
  • 500 μg
Delivery in 3 to 5 Business Days Shipping to: United States
ABIN135484
CD21 antibody CR2 · Primary Antibody Pig Mouse Monoclonal Clone BB6-11C9-6
  • FACS (Flow Cytometry: Validation image available)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • Sep (Separation: Listed application)
$537.60 View price
  • 500 μg
Delivery in 3 to 5 Business Days Shipping to: United States
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
  • IF (Immunofluorescence: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
HI21a
Conjugate
PE
Isotype
IgG2a
Catalog No. ABIN1112090
$440.00
Plus shipping costs $50.00
100 tests
Shipping to: United States
Delivery in 6 to 13 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
B-ly4
Conjugate
FITC
Isotype
IgG1
Catalog No. ABIN6253867
$2,664.75
Plus shipping costs $50.00
5 mL
Shipping to: United States
Delivery in 8 to 13 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
B-ly4
Conjugate
unconjugated
Isotype
IgG1
Catalog No. ABIN6253869
$1,653.14
Plus shipping costs $50.00
5 mL
Shipping to: United States
Delivery in 8 to 13 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • ICC (Immunocytochemistry: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
B-ly4
Conjugate
PE
Isotype
IgG1
Catalog No. ABIN6253870
$3,214.75
Plus shipping costs $50.00
5 mL
Shipping to: United States
Delivery in 8 to 13 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • ICC (Immunocytochemistry: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
4ABU32
Conjugate
PE
Isotype
IgG1
Catalog No. ABIN2144821
$202.88
Plus shipping costs $50.00
25 tests
Shipping to: United States
Delivery in 12 to 15 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • ICC (Immunocytochemistry: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
4ABU32
Conjugate
FITC
Isotype
IgG1
Catalog No. ABIN2144534
$204.56
Plus shipping costs $50.00
25 tests
Shipping to: United States
Delivery in 12 to 15 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
  • IF (Immunofluorescence: Listed application)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
Reactivity
Cow, Sheep, Goat, Mule deer (Odocoileus hemionus), Red Deer
Host
Mouse
Clonality
Monoclonal
Clone
CC21
Conjugate
unconjugated
Isotype
IgG1
Catalog No. ABIN2479247
$437.31
Plus shipping costs $50.00
0.1 mg
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
Reactivity
Pig, Cow, African buffalo (Syncerus caffer)
Host
Mouse
Clonality
Monoclonal
Clone
CC51
Conjugate
PE
Isotype
IgG2b
Catalog No. ABIN2479252
$810.00
Plus shipping costs $50.00
100 tests
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
Reactivity
Pig, Cow, African buffalo (Syncerus caffer)
Host
Mouse
Clonality
Monoclonal
Clone
CC51
Conjugate
unconjugated
Isotype
IgG2b
Catalog No. ABIN2479248
$437.31
Plus shipping costs $50.00
0.1 mg
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • IHC (p) (Immunohistochemistry (Paraffin-embedded Sections): Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
2G9
Conjugate
unconjugated
Isotype
IgG2a
Catalog No. ABIN2479257
$986.54
Plus shipping costs $50.00
1 mL
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
Reactivity
Pig, Cow, African buffalo (Syncerus caffer)
Host
Mouse
Clonality
Monoclonal
Clone
CC51
Conjugate
FITC
Isotype
IgG2b
Catalog No. ABIN2479250
$711.92
Plus shipping costs $50.00
0.1 mg
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
Reactivity
Human, Horse
Host
Mouse
Clonality
Monoclonal
Clone
Bu33
Conjugate
unconjugated
Isotype
IgG1
Catalog No. ABIN2479261
$572.00
Plus shipping costs $50.00
0.2 mg
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • IHC (Immunohistochemistry: Validation image available)
  • ELISA (ELISA: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Conjugate
unconjugated
Isotype
IgG
Catalog No. ABIN7189182
$234.22
Plus shipping costs $50.00
100 μg (More quantities available)
Shipping to: United States
Delivery in 13 to 17 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
Reactivity
Human
Host
Rabbit
Clonality
Polyclonal
Conjugate
unconjugated
Isotype
IgG
Binding Specificity
AA 729-957
Catalog No. ABIN6992488
$281.08
Plus shipping costs $50.00
50 tests (More quantities available)
Shipping to: United States
Delivery in 13 to 17 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • WB (Western Blotting: Listed application)
Reactivity
Human
Host
Human, Rabbit
Clonality
Chimeric
Clone
DMC280
Conjugate
unconjugated
Fragment
Fc fragment
Protein Type
Recombinant Antibody
Isotype
IgG1
Catalog No. ABIN7490579
$588.01
Plus shipping costs $50.00
100 μg (More quantities available)
Shipping to: United States
Delivery in 12 to 15 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Listed application)
  • IHC (Immunohistochemistry: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
B-E5
Conjugate
unconjugated
Isotype
IgG2a, kappa
Catalog No. ABIN1383837
$330.99
Plus shipping costs $50.00
2 mL
Shipping to: United States
Delivery in 6 to 8 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • Func (Functional Studies: Listed application)
Reactivity
Human
Host
Mouse
Clonality
Monoclonal
Clone
B-E5
Conjugate
unconjugated
Isotype
IgG2a, kappa
Catalog No. ABIN1383834
$368.30
Plus shipping costs $50.00
200 μL
Shipping to: United States
Delivery in 6 to 8 Business Days
Primary Antibody
  • IHC (Immunohistochemistry: Validation image available)
  • IHC (p) (Immunohistochemistry (Paraffin-embedded Sections): Listed application)
Reactivity
Human
Host
Rabbit
Clonality
Monoclonal
Clone
Q22-S
Conjugate
unconjugated
Isotype
IgG
Binding Specificity
AA 1015-1032, C-Term
Catalog No. ABIN7598874
$453.75
Plus shipping costs $50.00
100 μL (More quantities available)
Shipping to: United States
Delivery in 6 to 10 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • Sep (Separation: Listed application)
Reactivity
Pig
Host
Mouse
Clonality
Monoclonal
Clone
BB6-11C9-6
Conjugate
Biotin
Isotype
IgG1
Catalog No. ABIN135486
$579.60
Plus shipping costs $50.00
500 μg
Shipping to: United States
Delivery in 3 to 5 Business Days
Primary Antibody
  • FACS (Flow Cytometry: Validation image available)
  • IP (Immunoprecipitation: Listed application)
  • IHC (fro) (Immunohistochemistry (Frozen Sections): Listed application)
  • Sep (Separation: Listed application)
Reactivity
Pig
Host
Mouse
Clonality
Monoclonal
Clone
BB6-11C9-6
Conjugate
unconjugated
Isotype
IgG1
Catalog No. ABIN135484
$537.60
Plus shipping costs $50.00
500 μg
Shipping to: United States
Delivery in 3 to 5 Business Days

Latest Publications for our CD21 Antibodies

Kulka, Brennan, Mc Gee: "Investigation of canine extracellular vesicles in diffuse large B-cell lymphomas." in: PloS one, Vol. 17, Issue 9, pp. e0274261, (2022) (PubMed).

Li, Bu, Gabriel, Aguilar, Hoshino, Miyadera, Hess, Hornung, Roy, Cohen: "HLA-DQβ1 alleles associated with Epstein-Barr virus (EBV) infectivity and EBV gp42 binding to cells." in: JCI insight, Vol. 2, Issue 4, pp. e85687, (2017) (PubMed).

John-Schuster, Günter, Hager, Conlon, Eickelberg, Yildirim: "Inflammaging increases susceptibility to cigarette smoke-induced COPD." in: Oncotarget, Vol. 7, Issue 21, pp. 30068-83, (2016) (PubMed).

Sinkora, Butler, Lager, Potockova, Sinkorova: "The comparative profile of lymphoid cells and the T and B cell spectratype of germ-free piglets infected with viruses SIV, PRRSV or PCV2." in: Veterinary research, Vol. 45, pp. 91, (2014) (PubMed).

Avanzi, Leoni, Rotola, Alviano, Solimando, Lanzoni, Bonsi, Di Luca, Marchionni, Alvisi, Ripalti: "Susceptibility of human placenta derived mesenchymal stromal/stem cells to human herpesviruses infection." in: PLoS ONE, Vol. 8, Issue 8, pp. e71412, (2013) (PubMed).

Sinkora, Stepanova, Sinkorova: "Different anti-CD21 antibodies can be used to discriminate developmentally and functionally different subsets of B lymphocytes in circulation of pigs." in: Developmental and comparative immunology, Vol. 39, Issue 4, pp. 409-18, (2013) (PubMed).

Tenaya, Heel, Stumbles, Wilcox: "Flow cytometric analysis of lymphocyte subset kinetics in Bali cattle experimentally infected with Jembrana disease virus." in: Veterinary immunology and immunopathology, Vol. 149, Issue 3-4, pp. 167-76, (2012) (PubMed).

Notley, Brown, Wright, Ehrenstein: "Natural IgM is required for suppression of inflammatory arthritis by apoptotic cells." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 186, Issue 8, pp. 4967-72, (2011) (PubMed).

Kelten, Kabukcu, Sen, Teke, Yaren, Erdem, Duzcan: "Secondary involvement of the breast in T-cell non-Hodgkin lymphoma, an unusual example mimicking inflammatory breast carcinoma." in: Archives of gynecology and obstetrics, Vol. 280, Issue 1, pp. 149-52, (2009) (PubMed).

Singh, Blank, Shoenfeld, Illges: "Antiphospholipid syndrome patients display reduced titers of soluble CD21 in their sera irrespective of circulating anti-beta2-glycoprotein-I autoantibodies." in: Rheumatology international, Vol. 28, Issue 7, pp. 661-5, (2008) (PubMed).

Aliases for CD21 Antibodies

complement C3d receptor 2 (CR2) Antibodies
complement C3d receptor 2 (Cr2) Antibodies
complement C3b/C4b receptor 1 (Knops blood group) (CR1) Antibodies
C3DR Antibodies
CD21 Antibodies
Cd21 Antibodies
cd21 Antibodies
CR Antibodies
CR1 Antibodies
CR1-L Antibodies
CR2 Antibodies
CVID7 Antibodies
SLEB9 Antibodies
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