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
Surface receptor 1)B cell antigen receotor(BCR) BCR/mlgM 了 Membrane Ig(mlg) Mature B cell: mlgM mlgD BCR-Iga/gβ complex
Membrane Ig (mIg) Mature B cell： mIgM ＋ mIgD BCR-Igα/Igβ complex BCR/mIgM Surface receptor 1) B cell antigen receotor (BCR)
BCR-Iga/gβ complex BCR Iga Igβ galgβ
BCR-Iga/Igb complex
2. BCR coreceptor Help and strengthen the BCR-Ag-signaling CD19 B-specific surface marker sIgnal transduction CD21 CR2, receptor for C3d-bound Ag CD81 BCR-coreceptor ligation induce reversible palmitoylation of CD8 1 to stabilize the cd 9/ C D2 1/CD81 complex JBC2004;279:31973
2. BCR coreceptor CD19 B-specific surface marker signal transduction CD21 CR2，receptor for C3d-bound Ag CD81 BCR－coreceptor ligation induce reversible palmitoylation of CD81 to stabilize the CD19/CD21/CD81 complex Help and strengthen the BCR-Ag-signaling JBC 2004;279:31973
Coreceptor of BCR CR2 CD19 CD81 ITAM
Coreceptor of BCR