acetate2butyrate: (not (POR or POR_N or PFOR_II) and minimum(4, [Acyl-CoA_dh_1, Acyl-CoA_dh_2, ECH_2, ETF, ETF_alpha, HCDH_N, Thiolase_N, ketoacyl-synt]) and HCDH and minimum(1, [EC1_2-faecali, ECH1_Enoyl_CoA_DH1, ECH1_Enoyl_CoA_DH2, ECH1_Enoyl_CoA_DH3, ECH1_Enoyl_CoA_DH4, Thiolase_C]))
caffeate_respiration: (minimum(1, [Acyl-CoA_dh_2, Acyl-CoA_dh_M, HpaB, HpaB_N]) and CoA_trans_2_CAF and Acyl-CoA_dh_1)

fatty_acids-unassigned: (not (EC1_2-faecali or baiH or baiCD or ECH1_Enoyl_CoA_DH1 or ECH1_Enoyl_CoA_DH2 or ECH1_Enoyl_CoA_DH3 or ECH1_Enoyl_CoA_DH4 or POR or POR_N or PFOR_II) and minimum(4, [AcetylCoA_hyd_C, Acyl-CoA_dh_1, Acyl-CoA_dh_2, EC1_2-faecali, ECH1_8_CARC, ECH_1, ECH_2, HBT, HCDH, HCDH_N, Thiolase_C, Thiolase_N, ketoacyl-synt]))

Arginine2putrescine: (minimum(3, [AdoMet_dc, Amidinotransf, Arginase, OKR_DC_1, OKR_DC_1_7_arginine, OTCace]) or ((OKR_DC_1_5_ornithine or OKR_DC_1 or Orn_Arg_deC_N) and minimum(1, [Arginase, OTCace, OTCace_N, PAD_porph])))
Putrescine2spermidine: (minimum(2, [AdoMet_dc, Spermine_synt_N, Spermine_synth]) or (Orn_DAP_Arg_deC and Sacchrp_dh_C))
Arginine2_Hcarbonate: (Amidinotransf and OTCace and OTCace_N and AA_kinase)