S4_c -> S4_n
S4_n -> S4_c
S2_c -> S2_n
S2_n -> S2_c
pS2_c -> pS2_n
pS2_n -> pS2_c
R_act + S2_c -> R_act + pS2_c
S4_c + pS2_c -> S24_c
S24_c -> S4_c + pS2_c
S4_n + pS2_n -> S24_n
S24_n -> S4_n + pS2_n
S24_c -> S24_n
S22_c -> S22_n
2*pS2_c -> S22_c
S22_c -> 2*pS2_c
2*pS2_n -> S22_n
S22_n -> 2*pS2_n
PPase + pS2_n -> PPase + S2_n
R + TGFb_c -> R_act
R_act + SB -> R_inact
R_inact -> R_act + SB
G_c + R_act -> R_act + pG_c
PPase + pG_n -> G_n + PPase
G_c -> G_n
G_n -> G_c
pG_c -> pG_n
pG_n -> pG_c
2*pG_c -> GG_c
GG_c -> 2*pG_c
2*pG_n -> GG_n
GG_n -> 2*pG_n
pG_c + pS2_c -> G2_c
G2_c -> pG_c + pS2_c
pG_n + pS2_n -> G2_n
G2_n -> pG_n + pS2_n
S4_c + pG_c -> G4_c
G4_c -> S4_c + pG_c
S4_n + pG_n -> G4_n
G4_n -> S4_n + pG_n
GG_c -> GG_n
G2_c -> G2_n
G4_c -> G4_n