CD21 (2G9) Mouse Monoclonal Antibody
SIGMA/121M-1
Product Type: Chemical
antibody form | culture supernatant |
antibody product type | primary antibodies |
biological source | mouse |
clone | 2G9, monoclonal |
conjugate | unconjugated |
control | tonsil |
description | For In Vitro Diagnostic Use in Select Regions (See Chart) |
form | buffered aqueous solution |
isotype | IgG2a |
manufacturer/tradename | Cell Marque™ |
packaging | bottle of 1.0 mL predilute (121M-17) |
bottle of 7.0 mL predilute (121M-18) | |
vial of 0.1 mL concentrate (121M-14) | |
vial of 0.5 mL concentrate (121M-15) | |
vial of 1.0 mL concentrate (121M-16) | |
Quality Level | 100 ![]() |
500 ![]() |
|
shipped in | wet ice |
species reactivity | human |
storage temp. | 2-8°C |
technique(s) | immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:25-1:100 |
visualization | membranous |
General description: | CD21 (also known as complement receptor 2 (CR2), C3d receptor, or EBV receptor) is a 140 kDa membrane protein on B-lymphocytes to which the Epstein-Barr virus (EBV) binds during infection of these cells. The antigen is absent on T-lymphocytes, monocytes, and granulocytes. Anti-CD21 is useful in the identification of follicular dendritic cell matrix found in normal lymph nodes and tonsillar tissue. This antibody also labels follicular dendritic cell sarcomas. Anti-CD21 is valuable in differentiating follicular lymphoma with marginal zone differentiation from marginal zone lymphoma with follicular involvement. It also plays a role in distinguishing among nodular lymphocyte predominant Hodgkin lymphoma, lymphocyte-rich classic Hodgkin lymphoma, and T-cell/histiocyte-rich B-cell lymphoma in combination with other B-cell and T-cell markers.Anti-CD21 is also useful in identifying abnormal follicular dendritic cell pattern in angioimmunoblastic T-cell lymphoma and follicular T-cell lymphoma. |
Legal Information: | Cell Marque is a trademark of Merck KGaA, Darmstadt, Germany |
Linkage: | CD21 Positive Control Slides, Product No. 121S ![]() |
Other Notes: | For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com |
Physical form: | Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide |
Preparation Note: | Download the IFU specific to your product lot and format ![]() ![]() |
RIDADR | NONH for all modes of transport |
Storage Temp. | 2-8°C |
UNSPSC | 12352203 |