BCR-Iga/gB coreceptor complex B cell epitope C3d BCR CR2 Iga Igβ CD19 CD81 CHITAM 3P13K B cell activation
B cell activation B cell epitope BCR-Iga/Igb coreceptor complex
MHC class I or MHC class‖l TCR-CD3 Antigen TCR BCR-goU/β cells) t chains BCR(B cells ITAMS WDU CD3 Yoe, chains Cytokine production Proliferation Proliferation Differentiation Cytotoxic ity Ant ibody production
TCR-CD3 BCR-Iga/b
3. Complement receptor, CR CR2(CD21): EB virus receptor
3．Complement receptor, CR CR2（CD21）：EB virus receptor
4. Cytokine receptor, CKR 儿L-1R、儿L-2R、‖L-4R、L5R、lL-6R、 儿L-7R, IFN-VR A regulate the activation, differentiation and function of B cells
4．Cytokine receptor, CKR IL-1R、IL-2R、IL-4R、IL-5R、IL-6R、 IL-7R, IFN-γR regulate the activation, differentiation and function of B cells
1. Surface molecules of b cell Surface receptor 1)B cell antigen receotor (BCR) 2) BCR coreceptor 3)Cytokine receptor(CKR) Surface functional molecules
Surface receptor 1) B cell antigen receotor (BCR) 2) BCR coreceptor 3) Cytokine receptor（CKR） 1. Surface molecules of B cell Surface functional molecules