| Organism | Ratio1 | Gene1 | Name1 | Description1 | Ratio2 | Gene2 | Name2 | Description2 | Cofit | Rank |
| Sphingobium sp. HT1-2 | 1.0 | GFF784 | | Nitrogen regulatory protein P-II, GlnK | 1.0 | GFF776 | | RNA polymerase sigma-54 factor RpoN | 0.91 | 7 |
| Sphingomonas koreensis DSMZ 15582 | 0.90 | Ga0059261_2255 | | nitrogen regulatory protein P-II family | 0.63 | Ga0059261_2543 | | RNA polymerase, sigma 54 subunit, RpoN/SigL | low | > 68 |
| Azospirillum brasilense Sp245 | 0.79 | AZOBR_RS02290 | | nitrogen regulatory protein P-II 1 | 0.42 | AZOBR_RS18870 | | RNA polymerase sigma54 factor | low | > 97 |
| Azospirillum sp. SherDot2 | 0.78 | MPMX19_05521 | | Nitrogen regulatory protein P-II 2 | 0.40 | MPMX19_02668 | | RNA polymerase sigma-54 factor 2 | low | > 112 |
| Magnetospirillum magneticum AMB-1 | 0.75 | AMB_RS00075 | | P-II family nitrogen regulator | 0.45 | AMB_RS19925 | | RNA polymerase sigma-54 factor | — | — |
| Rhodospirillum rubrum S1H | 0.72 | Rru_A1130 | | Nitrogen regulatory protein P-II (GlnB, GlnK) (NCBI) | 0.43 | Rru_A0010 | | Sigma-54 (RpoN) (NCBI) | low | > 58 |
| Caulobacter crescentus NA1000 Δfur | 0.72 | CCNA_01400 | | nitrogen regulatory protein GlnK | 0.42 | CCNA_03713 | | RNA polymerase sigma-54 factor rpoN | low | > 67 |
| Caulobacter crescentus NA1000 | 0.72 | CCNA_01400 | | nitrogen regulatory protein GlnK | 0.42 | CCNA_03713 | | RNA polymerase sigma-54 factor rpoN | low | > 66 |
| Pantoea agglomerans CFBP13505 P0401 | 0.67 | PagCFBP13505_RS10610 | | P-II family nitrogen regulator | 0.28 | PagCFBP13505_RS09350 | | RNA polymerase factor sigma-54 | low | > 74 |
| Pantoea sp. MT58 | 0.67 | IAI47_14585 | | P-II family nitrogen regulator | 0.27 | IAI47_17185 | | RNA polymerase factor sigma-54 | low | > 76 |
| Serratia liquefaciens MT49 | 0.66 | IAI46_05080 | | P-II family nitrogen regulator | 0.28 | IAI46_22470 | | RNA polymerase factor sigma-54 | low | > 87 |
| Klebsiella michiganensis M5al | 0.66 | BWI76_RS06600 | | nitrogen regulatory protein P-II 2 | 0.28 | BWI76_RS25265 | | RNA polymerase factor sigma-54 | — | — |
| Erwinia amylovora T8 | 0.66 | OLJFJH_17910 | | P-II family nitrogen regulator | 0.27 | OLJFJH_07070 | | RNA polymerase factor sigma-54 | — | — |
| Enterobacter sp. TBS_079 | 0.65 | MPMX20_01042 | | Nitrogen regulatory protein P-II 2 | 0.28 | MPMX20_04108 | | RNA polymerase sigma-54 factor | — | — |
| Escherichia fergusonii Becca | 0.65 | EFB2_03607 | | Nitrogen regulatory protein P-II 2 | 0.28 | EFB2_00621 | | RNA polymerase sigma-54 factor | — | — |
| Escherichia coli HS(pFamp)R (ATCC 700891) | 0.65 | OHPLBJKB_03223 | | Nitrogen regulatory protein P-II 2 | 0.28 | OHPLBJKB_00498 | | RNA polymerase sigma-54 factor | low | > 74 |
| Escherichia coli Nissle 1917 | 0.65 | ECOLIN_RS02695 | | P-II family nitrogen regulator | 0.28 | ECOLIN_RS18425 | | RNA polymerase factor sigma-54 | — | — |
| Klebsiella pneumoniae MKP103 | 0.65 | KDGMDA_14680 | | P-II family nitrogen regulator | 0.28 | KDGMDA_06080 | | RNA polymerase factor sigma-54 | low | > 95 |
| Escherichia coli ECRC100 | 0.65 | OKFHMN_08265 | glnK | P-II family nitrogen regulator | 0.28 | OKFHMN_17940 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli ECRC98 | 0.65 | JDDGAC_11920 | glnK | P-II family nitrogen regulator | 0.28 | JDDGAC_21565 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli BL21 | 0.65 | ECD_00402 | | nitrogen assimilation regulatory protein for GlnL, GlnE, and AmtB | 0.28 | ECD_03067 | | RNA polymerase, sigma 54 (sigma N) factor | low | > 61 |
| Escherichia coli ECOR38 | 0.65 | HEPCGN_06880 | glnK | P-II family nitrogen regulator | 0.28 | HEPCGN_16815 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli ECRC62 | 0.65 | BNILDI_22615 | glnK | P-II family nitrogen regulator | 0.28 | BNILDI_01795 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Enterobacter asburiae PDN3 | 0.65 | EX28DRAFT_2519 | | nitrogen regulatory protein P-II family | 0.29 | EX28DRAFT_3256 | | RNA polymerase, sigma 54 subunit, RpoN/SigL | — | — |
| Escherichia coli ECRC102 | 0.65 | NIAGMN_06320 | glnK | P-II family nitrogen regulator | 0.28 | NIAGMN_15700 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli ECOR27 | 0.65 | NOLOHH_01200 | glnK | P-II family nitrogen regulator | 0.28 | NOLOHH_09740 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli ECRC99 | 0.65 | KEDOAH_19700 | glnK | P-II family nitrogen regulator | 0.28 | KEDOAH_10210 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli ECRC101 | 0.65 | MCAODC_27490 | glnK | P-II family nitrogen regulator | 0.28 | MCAODC_08460 | rpoN | RNA polymerase factor sigma-54 | — | — |
| Escherichia coli BW25113 | 0.65 | b0450 | glnK | nitrogen assimilation regulatory protein for GlnL, GlnE, and AmtB (NCBI) | 0.29 | b3202 | rpoN | DNA-directed RNA polymerase subunit N (NCBI) | — | — |
| Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | 0.65 | GFF4367 | | Nitrogen regulatory protein P-II, glnK | 0.29 | GFF2946 | | RNA polymerase sigma-54 factor RpoN | low | > 78 |
| Phocaeicola vulgatus CL09T03C04 | 0.38 | HMPREF1058_RS06900 | | P-II family nitrogen regulator | 0.17 | HMPREF1058_RS12505 | | RNA polymerase factor sigma-54 | low | > 67 |
Not shown: 1 genomes with orthologs for GFF784 only; 84 genomes with orthologs for GFF776 only