R0 k_gaba - kf_R0*gaba R1 kf_R1*gaba*GABABR-kr_R1*gabaGABABR R2 kf_R2*gabaGABABR*Gi-kr_R2*gabaGABABRGi R3 kf_R3*gabaGABABRGi R4 kf_R4*gabaGABABRGibg R5 kf_R5*GABABR*Gi-kr_R5*GABABRGi R6 kf_R6*gaba*GABABRGi-kr_R6*gabaGABABRGi R7 kf_R7*GiaGTP*RGS-kr_R7*GiaGTPRGS R8 kf_R8*GiaGTPRGS R9 kf_R9*GiaGDP*Gibg R10 kf_R10*GIRK*Gibg-kr_R10*GIRKGibg R11 kf_R11*GIRKGibg*Gibg-kr_R11*GIRKGibg2 R12 kf_R12*GIRKGibg2*Gibg-kr_R12*GIRKGibg3 R13 kf_R13*GIRKGibg3*Gibg-kr_R13*GIRKGibg4 R14 kf_R14*VGCC*Gibg-kr_R14*VGCCGibg