NF_kB -> Irf4 Blimp1 -> Irf4 Bcl6 -| Irf4 Irf4 -> Irf4 IL_2R -> STAT5 CD40 -> NF_kB CD40L -> CD40 Blimp1 -| AID NF_kB -> AID STAT6 -> AID Pax5 -| AID Blimp1 -> XBP1 Pax5 -| XBP1 Ag -> BCR IL_21 -> IL_21R IL_2 -> IL_2R IL_4 -> IL_4R Blimp1 -| Pax5 Pax5 -> Pax5 ERK -| Pax5 Irf4 -| Pax5 IL_4R -> STAT6 BCR -> ERK IL_21R -> STAT3 Blimp1 -| Bcl6 STAT6 -> Bcl6 Pax5 -> Bcl6 Bcl6 -> Bcl6 STAT5 -> Bcl6 ERK -| Bcl6 Irf4 -| Bcl6 Bach2 -| Blimp1 Pax5 -| Blimp1 Bcl6 -| Blimp1 ERK -> Blimp1 STAT3 -> Blimp1 Irf4 -> Blimp1 Blimp1 -| Bach2 Pax5 -> Bach2 $AID: ((NF_kB & (Pax5 & !Blimp1)) | (STAT6 & !Blimp1)) $BCR: Ag $Bach2: (Pax5 & !Blimp1) $Bcl6: ((((Bcl6 & Pax5) & !((Irf4 | Blimp1) | ERK)) | (STAT5 & !((Irf4 | Blimp1) | ERK))) | (STAT6 & !((Irf4 | Blimp1) | ERK))) $Blimp1: (((STAT3 & !((Pax5 | Bcl6) | Bach2)) | (ERK & !((Pax5 | Bcl6) | Bach2))) | ((Irf4 & ((!Bach2 | !Pax5) | !Bcl6)) & !((Pax5 | Bcl6) | Bach2))) $CD40: CD40L $ERK: BCR $IL_21R: IL_21 $IL_2R: IL_2 $IL_4R: IL_4 $Irf4: ((NF_kB | (Blimp1 & !Bcl6)) | (Irf4 & !Bcl6)) $NF_kB: CD40 $Pax5: (((Pax5 & (Pax5 | !Irf4)) & !(ERK | Blimp1)) | !(((Blimp1 | Pax5) | ERK) | Irf4)) $STAT3: IL_21R $STAT5: IL_2R $STAT6: IL_4R $XBP1: (Blimp1 & !Pax5)