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]))
Putrescine2spermidine: (minimum(2, [AdoMet_dc, Spermine_synt_N, Spermine_synth]) or (Orn_DAP_Arg_deC and Sacchrp_dh_C))

TPP_AA_metabolism: (TPP_enzyme_C and not (PFL-like or PFL_6_pcresol or PFL_9_tma or Gly_radical or Gly_430_pcre or Gly_8-9_TMA or PFL_acetate1 or PFL_acetate2 or Gly_radical_scatole or PFL_proline or PFL_toluene) and minimum(2, [ALS_ss_C, AlaDh_PNT_C, Arginase, BKACE, BcrAD_BadFG, Beta_elim_lyase, CPSase_L_D2, Cys_Met_Meta_PP, ELFV_dehydrog, GRDB, Glu_syn_central, Glu_synthase, Gly_reductase, HAAA1, HG2B1, HG2B2, HGD-D, HleuD1, HleuD2, HleuS1, HleuS2, Homoserine_dh, ILVD_EDD, IlvC, Lactoyl-CoA1, Lactoyl-CoA2, Lyase_aromatic, MAAL_C, OKR_DC_1_5_lysine, OKR_DC_1_5_ornithine, OKR_DC_1_7_arginine, OKR_DC_1_C, OTCace, PALP, Proline_reductase, Sacchrp_dh_C, TPL, Thr_dehydrat_C, TnaA, Urocanase]) and not (POR or POR_N or PFOR_II))

Fumarate2succinate: (Succ_DH_flav_C and FAD_binding_2 and (Fer2_3 or Fer4_7 or SucD_FumR))