These antibodies are validated on HuProt™ Human Protein Microarrays containing over 21,000 full-length human proteins, including the specific target of interest. LEARN MORE
Trial Size Available
Carrier-Free Available
Formalin-fixed, paraffin-embedded Human Tonsil Dendritic stained with CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754).
Western Blot Analysis of human Raji Cell lysate using CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754).
Flow Cytometric Analysis of PFA fixed MOLT4 Cells. CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754). followed by Goat anti-mouse IgG-CF488 (Blue); Isotype Control (Red).
Immunofluorescence staining of PFA fixed MOLT4 cells using CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754). followed by goat anti-mouse IgG conjugated to CF488 (green). Nuclei are stained with Reddot.
SDS-PAGE Analysis Purified CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754). Confirmation of Integrity and Purity of Antibody.
Analysis of Protein Array containing more than 19,000 full-length human proteins using CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754) Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProtTM are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a MAb to its intended target. A MAb is considered to specific to its intended target, if the MAb has an S-score of at least 2.5. For example, if a MAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that MAb to protein X is equal to 29.
Formalin-fixed, paraffin-embedded human tonsil stained with CD21-Monospecific Mouse Monoclonal Antibody (CR2/2754). Inset: PBS instead of primary antibody; secondary only negative control.
| Document Name | |
|---|---|
| Datasheet | Download Here |
| Material Safety Data Sheet | Download Here |
| Applications | Tested Dilutions | Protocol | Note |
|---|---|---|---|
| Flow Cytometry (Flow) | 1-2ug/million cells | Flow Cytometry Protocol | |
| Immunofluorescence (IF) | 1-3ug/ml | ||
| Immunohistochemistry (IHC) | 1-2ug/ml | IHC Protocol | 30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes |
| Western Blot (WB) | 2-4ug/ml | Western Blot Protocol |
1
3
0
4
3
6
3
Recognizes a protein of 140kDa, which is identified as the complement receptor 2 (CR2) or CD21. This protein is expressed strongly on mature B cells, follicular dendritic cells and weakly on immature thymocytes and T lymphocytes. In B-cell ontogeny, CD21 appears after the pre-B-stage, is maintained during peripheral B-cell development and is lost upon terminal differentiation into plasma cells. CD21 expression is also gradually lost after stimulation of B cells in vitro. CD21 functions as receptor for C3d, C3dg and iC3b Complement components, for EBV and for IFNalpha. CD21 binds to CD23 and associates with CD19, CD81 and Leu13 to form a large signal-transduction complex involved in B cell activation.
Should a NeoBiotechnologies antibody not meet the experimental expectations outlined on our website or datasheet, please contact our Technical Support. We unconditionally guarantee our product.
Our team of scientists are ready to help you with expert recommendations or technical assistance related to applications or product use.
Information
© 2026 NeoBiotechnologies. All Rights Reserved.
Monday-Friday: 8:00am – 8:00pm Pacific Time
