产品名称
CD21 Recombinant Antibody [PD00-23] - Rat IgG1 (Chimeric) - BSA and Azide free
免疫原
Synthetic peptide within Human CD21 aa 1000 to the C-terminus.
靶点分子量
Predicted band size: 113 kDa
存放说明
Store at 2-8℃. Avoid freeze.
纯化方式
Protein A affinity purified.
功能
CD21 is a type I integral membrane glycoprotein that serves as a receptor for the C3d complement fragment and for the Epstein-Barr virus. It plays a role in B cell activation and proliferation and undergoes phosphorylation after B cell activation with phorbol esters. CD21 is expressed on mature B cells, follicular dendritic cells, pharyngeal and cervical epithelial cells and a subset of thymocytes. The adaptive immune response is tightly regulated to limit responding cells in an antigen-specific manner. On B cells, co-receptors CD21/CD19 modulate the strength of B cell Ag receptor (BCR) signals, thereby influencing cell fate. Complement receptor (CR) type 2 (CR2/ CD21) is normally expressed during the immature and mature stages of B cell development. In association with CD19, CD21 plays an important role in enhancing mature B cell responses to foreign antigens.
背景文献
1. Smith NA. et. al. CD21 (Complement Receptor 2) Is the Receptor for Epstein-Barr Virus Entry into T Cells. J Virol. 2020 May
2. Visentini M. et. al. CD21(low) B cells are predictive markers of new digital ulcers in systemic sclerosis. Clin Exp Immunol. 2021 Aug
别名
C3DR antibody
CD 21 antibody
CD21 antibody
Complement C3d receptor 2 antibody
Complement C3d receptor antibody
Complement component (3d/Epstein Barr virus) receptor 2 antibody
Complement receptor type 2 antibody
CR antibody
Cr2 antibody
CR2_HUMAN antibody
展开
C3DR antibody
CD 21 antibody
CD21 antibody
Complement C3d receptor 2 antibody
Complement C3d receptor antibody
Complement component (3d/Epstein Barr virus) receptor 2 antibody
Complement receptor type 2 antibody
CR antibody
Cr2 antibody
CR2_HUMAN antibody
CVID7 antibody
EBV receptor antibody
EBV-R antibody
Epstein Barr virus receptor antibody
Epstein-Barr virus receptor antibody
EVBR antibody
SLEB9 antibody
折叠
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☑ Relative expression (RE)
Western blot analysis of CD21 on different lysates with Rabbit anti-CD21 antibody (HA610405) at 1/5,000 dilution.
Lane 1: Raji (Human Burkitt's lymphoma cells)
Lane 2: K-562 (Human chronic myelogenous leukemia cells)
Lysates/proteins at 20 µg/Lane.
Exposure time: 20 seconds; ECL: K1801
Negative expression of CD21 protein in K562 cell is consistent with the predicted expression pattern
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA610405, 1/5,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃
Secondary antibody: Goat anti-Rat IgG-HRP (HA1023), 1/50,00 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 113 kDa
Observed band size: 150 kDa
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Application: Immunohistochemistry (IHC-P)
Species: Human
Tissue: Lymph node
Sample: Paraffin-embedded section
Antigen retrieval: Heat-mediated, Tris-EDTA buffer (pH 9.0), 20 minutes at 95°C.
Wash buffer: 1× TBST
Endogenous peroxidase blocking: 3% H₂O₂, 10 minutes at room temperature.
Blocking: 1% BSA + 10% normal goat serum, 10 minutes at room temperature.
Primary antibody: HA610405, 1/4,000, 1 hour at room temperature.
Secondary antibody: HA1023, 20 minutes at room temperature.
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Application: Immunohistochemistry (IHC-P)
Species: Human
Tissue: Spleen
Sample: Paraffin-embedded section
Antigen retrieval: Heat-mediated, Tris-EDTA buffer (pH 9.0), 20 minutes at 95°C.
Wash buffer: 1× TBST
Endogenous peroxidase blocking: 3% H₂O₂, 10 minutes at room temperature.
Blocking: 1% BSA + 10% normal goat serum, 10 minutes at room temperature.
Primary antibody: HA610405, 1/4,000, 1 hour at room temperature.
Secondary antibody: HA1023, 20 minutes at room temperature.
请注意: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"