| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Azospirillum sp. SherDot2 | MPMX19_03166 | | Fumarate hydratase class I, aerobic | no data | 100 | 100 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS10315 | | fumarate hydratase | strong | 93 | 100 |
| o | Rhizobium sp. OAE497 | ABIE40_RS10550 | | fumarate hydratase | insig. | 78 | 99 |
| o | Bosea sp. OAE506 | ABIE41_RS00110 | | fumarate hydratase | cofit | 76 | 98 |
| o | Rhodopseudomonas palustris CGA009 | TX73_020085 | | fumarate hydratase | insig. | 76 | 98 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS06760 | | fumarate hydratase | no data | 71 | 98 |
| o | Rhodospirillum rubrum S1H | Rru_A2206 | | tartrate dehydrogenase (NCBI) | no data | 71 | 98 |
| o | Escherichia coli BL21 | ECD_01581 | | fumarate hydratase (fumarase A), aerobic Class I | sig. | 67 | 98 |
| o | Escherichia fergusonii Becca | EFB2_02380 | | Fumarate hydratase class I, aerobic | insig. | 67 | 98 |
| o | Escherichia coli ECOR27 | NOLOHH_18150 | fumB | class I fumarate hydratase | sig. | 67 | 98 |
| o | Escherichia coli ECOR38 | HEPCGN_06020 | fumB | class I fumarate hydratase | insig. | 67 | 98 |
| o | Escherichia coli ECRC62 | BNILDI_16940 | fumB | class I fumarate hydratase | cofit | 67 | 98 |
| o | Escherichia coli Nissle 1917 | ECOLIN_RS09000 | | class I fumarate hydratase | insig. | 67 | 98 |
| o | Escherichia coli BW25113 | b1612 | fumA | fumarate hydratase (fumarase A), aerobic Class I (NCBI) | strong | 67 | 98 |
| o | Escherichia coli ECRC100 | OKFHMN_27645 | fumB | class I fumarate hydratase | insig. | 67 | 98 |
| o | Escherichia coli ECRC101 | MCAODC_17765 | fumB | class I fumarate hydratase | strong | 67 | 98 |
| o | Escherichia coli ECRC102 | NIAGMN_00430 | fumB | class I fumarate hydratase | insig. | 67 | 98 |
| o | Escherichia coli ECRC98 | JDDGAC_02235 | fumB | class I fumarate hydratase | sig. | 67 | 98 |
| o | Escherichia coli ECRC99 | KEDOAH_00460 | fumB | class I fumarate hydratase | no data | 67 | 98 |
| o | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_02114 | | Fumarate hydratase class I, aerobic | sig. | 67 | 98 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF1807 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | cofit | 67 | 98 |
| o | Enterobacter sp. TBS_079 | MPMX20_02966 | | Fumarate hydratase class I, anaerobic | sig. | 67 | 98 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_0584 | | hydro-lyases, Fe-S type, tartrate/fumarate subfamily, alpha region/hydro-lyases, Fe-S type, tartrate/fumarate subfamily, beta region | insig. | 66 | 98 |
| o | Enterobacter asburiae PDN3 | EX28DRAFT_1609 | | hydro-lyases, Fe-S type, tartrate/fumarate subfamily, alpha region/hydro-lyases, Fe-S type, tartrate/fumarate subfamily, beta region | cofit | 66 | 98 |
| o | Dickeya dadantii 3937 | DDA3937_RS04540 | | fumarate hydratase | cofit | 67 | 98 |
| | Escherichia fergusonii Becca | EFB2_04461 | | Fumarate hydratase class I, anaerobic | insig. | 66 | 97 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23850 | | class I fumarate hydratase | insig. | 66 | 97 |
| | Escherichia coli ECOR38 | HEPCGN_11160 | fumB | class I fumarate hydratase | insig. | 66 | 97 |
| | Enterobacter sp. TBS_079 | MPMX20_02021 | | Fumarate hydratase class I, aerobic | strong | 66 | 98 |
| o | Dickeya dianthicola 67-19 | HGI48_RS04500 | | fumarate hydratase | cofit | 67 | 98 |
| o | Dickeya dianthicola ME23 | DZA65_RS04420 | | fumarate hydratase | cofit | 67 | 98 |
| o | Pectobacterium carotovorum WPP14 | HER17_RS17120 | | fumarate hydratase | cofit | 66 | 98 |
| | Escherichia coli ECOR27 | NOLOHH_04790 | fumB | class I fumarate hydratase | insig. | 66 | 97 |
| | Escherichia coli ECRC62 | BNILDI_06700 | fumB | class I fumarate hydratase | cofit | 66 | 97 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_03922 | | Fumarate hydratase class I, anaerobic | insig. | 66 | 97 |
| o | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_15515 | fumA | class I fumarate hydratase FumA | cofit | 66 | 98 |
| o | Erwinia tracheiphila SCR3 | LU632_RS01205 | | class I fumarate hydratase FumA | cofit | 66 | 98 |
| o | Rahnella sp. WP5 | EX31_RS01160 | | fumarate hydratase | insig. | 65 | 97 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_21090 | | class I fumarate hydratase FumA | insig. | 66 | 98 |
| | Escherichia coli BL21 | ECD_03993 | | anaerobic class I fumarate hydratase (fumarase B) | insig. | 66 | 97 |
| | Escherichia coli BW25113 | b4122 | fumB | anaerobic class I fumarate hydratase (fumarase B) (NCBI) | insig. | 66 | 97 |
| o | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS13945 | | fumarate hydratase | cofit | 65 | 98 |
| o | Klebsiella michiganensis M5al | BWI76_RS16275 | | fumarate hydratase FumA | strong | 65 | 98 |
| o | Klebsiella pneumoniae MKP103 | KDGMDA_20935 | | class I fumarate hydratase FumA | cofit | 65 | 98 |
| | Escherichia coli ECRC100 | OKFHMN_12525 | fumB | class I fumarate hydratase | cofit | 66 | 97 |
| | Escherichia coli ECRC101 | MCAODC_03035 | fumB | class I fumarate hydratase | insig. | 66 | 97 |
| | Escherichia coli ECRC102 | NIAGMN_10370 | fumB | class I fumarate hydratase | insig. | 66 | 97 |
| | Escherichia coli ECRC98 | JDDGAC_16160 | fumB | class I fumarate hydratase | insig. | 66 | 97 |
| | Escherichia coli ECRC99 | KEDOAH_15640 | fumB | class I fumarate hydratase | no data | 66 | 97 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF1477 | | Fumarate hydratase class I, anaerobic (EC 4.2.1.2) | insig. | 66 | 97 |
| o | Pantoea sp. MT58 | IAI47_20435 | | fumarate hydratase | insig. | 65 | 98 |
| o | Serratia liquefaciens MT49 | IAI46_21370 | | fumarate hydratase | insig. | 66 | 98 |
| o | Erwinia amylovora T8 | OLJFJH_15150 | | class I fumarate hydratase FumA | insig. | 65 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS16115 | | fumarate hydratase | insig. | 65 | 98 |
| o | Bacteroides stercoris CC31F | HMPREF1181_RS09470 | | fumarate hydratase | no data | 63 | 98 |
| o | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS13805 | | fumarate hydratase | no data | 64 | 98 |
| o | Bacteroides ovatus ATCC 8483 | BACOVA_03087 | | hydrolyase, tartrate beta subunit/fumarate domain protein, Fe-S type | no data | 63 | 98 |
| o | Bacteroides thetaiotaomicron VPI-5482 | BT2256 | | fumarate hydratase class I, anaerobic (NCBI ptt file) | no data | 63 | 98 |
| o | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS17710 | | fumarate hydratase | no data | 63 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS08450 | | fumarate hydratase | insig. | 58 | 98 |
| | Escherichia coli ECOR38 | HEPCGN_01375 | ttdA | class I fumarate hydratase | insig. | 57 | 98 |
| | Escherichia coli ECRC100 | OKFHMN_06895 | ttdA | class I fumarate hydratase | insig. | 57 | 98 |
| | Escherichia coli ECRC101 | MCAODC_26115 | ttdA | class I fumarate hydratase | insig. | 57 | 98 |
| | Escherichia coli ECRC102 | NIAGMN_04945 | ttdA | class I fumarate hydratase | insig. | 57 | 98 |
| | Escherichia coli ECRC98 | JDDGAC_10550 | ttdA | class I fumarate hydratase | insig. | 57 | 98 |
| | Escherichia coli ECRC99 | KEDOAH_21070 | ttdA | class I fumarate hydratase | no data | 57 | 98 |
| o | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS19555 | | fumarate hydratase | strong | 33 | 87 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS23780 | | fumarate hydratase | sig. | 34 | 83 |
| o | Paraburkholderia graminis OAS925 | ABIE53_001662 | | fumarate hydratase class I | strong | 33 | 83 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_04956 | | fumarase, class I, homodimeric | no data | 33 | 83 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS06985 | | fumarate hydratase | strong | 33 | 83 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS14865 | | fumarate hydratase | strong | 33 | 83 |
| o | Kangiella aquimarina DSM 16071 | B158DRAFT_1342 | | fumarase, class I, homodimeric (EC 4.2.1.2) | no data | 33 | 83 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS24270 | | fumarate hydratase | no data | 34 | 84 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS24270 | | fumarate hydratase | no data | 34 | 84 |
| o | Pseudomonas simiae WCS417 | PS417_22635 | | fumarate hydratase | no data | 34 | 84 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF4099 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | cofit | 33 | 89 |
| o | Variovorax sp. SCN45 | GFF483 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | insig. | 32 | 89 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1808 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | no data | 34 | 84 |
| o | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_683 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | strong | 34 | 84 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS14375 | | fumarate hydratase | strong | 33 | 83 |
| o | Shewanella loihica PV-4 | Shew_1904 | | tartrate/fumarate subfamily Fe-S type hydro-lyase alpha subunit (RefSeq) | no data | 33 | 84 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_03795 | | fumarate hydratase | strong | 34 | 84 |
| o | Pseudomonas sp. DMC3 | GFF5036 | | Fumarate hydratase class I, aerobic | no data | 34 | 84 |
| o | Vibrio cholerae E7946 ATCC 55056 | CSW01_06585 | | fumarate hydratase | insig. | 34 | 82 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5489 | | Fumarate hydratase class I, aerobic (EC 4.2.1.2) | no data | 34 | 84 |
| o | Variovorax sp. OAS795 | ABID97_RS17550 | | fumarate hydratase | insig. | 31 | 89 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS27740 | | fumarate hydratase | insig. | 34 | 83 |
| o | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS12620 | | fumarate hydratase | sig. | 33 | 83 |
| o | Ralstonia solanacearum GMI1000 | RS_RS09830 | | fumarate hydratase | sig. | 33 | 83 |
| o | Pseudomonas sp. RS175 | PFR28_03458 | | Fumarate hydratase class I, aerobic | no data | 33 | 84 |
| o | Alteromonas macleodii MIT1002 | MIT1002_02009 | | Fumarate hydratase class I, anaerobic | no data | 33 | 83 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS13905 | | fumarate hydratase | strong | 32 | 83 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_4031 | | fumarase | no data | 34 | 82 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_4031 | | fumarase | no data | 34 | 82 |
| o | Rhodanobacter sp. FW510-T8 | OKGIIK_02115 | ttdA | fumarate hydratase | strong | 32 | 83 |
| o | Shewanella oneidensis MR-1 | SO2222 | | fumarate hydratase, class I, anaerobic, putative (NCBI ptt file) | no data | 32 | 84 |
| o | Shewanella sp. ANA-3 | Shewana3_2302 | | fumarase (RefSeq) | no data | 32 | 84 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_17810 | | fumarate hydratase | no data | 33 | 84 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04680 | | Fumarate hydratase class I, aerobic | cofit | 33 | 84 |