| Outer membrane receptor for Fe(III)-coprogen | fhuE STM1204 | Q8ZQ10 | 1 |
| Outer membrane receptor for iron-regulated colicin I receptor | cirA SSON_2211 | Q3Z051 | 1 |
| Outer membrane transport family protein | J582_1061 | A0A010L5L6 | 1 |
| Outer membrane-like protein | NSU_3831 | G6EHL0 | 1 |
| Outer protein | sopB SCH_1043 | Q57QR2 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA NMB0622 | P57068 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA FTN_0293 | A0Q4N4 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA B195_20550 | M5QBZ1 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA STM0961 | Q8ZQD4 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA PP_4003 | Q88FS9 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA HP_0785 | O25474 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA HPSD74_0265 | U4SLS9 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA Smlt2346 | B2FQY6 | 1 |
| Outer-membrane lipoprotein carrier protein | lolA FTT_1636 | Q5NEJ3 | 1 |
| Outer-membrane lipoprotein LolB | lolB hemM STM1778 | P30752 | 1 |
| Outer-membrane lipoprotein LolB | lolB HPSD74_1908 | U4SD37 | 1 |
| Outer-membrane lipoprotein LolB | lolB FTT_0270 | Q5NI20 | 1 |
| Outer-membrane porin D (EC 3.4.21.-) | opdN PP_3764 | Q88GG0 | 1 |
| Oxaloacetate decarboxylase, beta subunit | VSAK1_07799 | A6D845 | 1 |
| Oxidoreductase | FTN_1049 | A0Q6S1 | 1 |
| Oxidoreductase (Mercury (II) reductase) | merA spr1442 | Q8DP00 | 1 |
| Oxidoreductase, 2-nitropropane dioxygenase family | MXAN_2267 | Q1DA35 | 1 |
| Oxidoreductase, short chain dehydrogenase/reductase family | FTN_0634 | A0Q5L2 | 1 |
| Oxidoredutase membrane subunit, NrfD family | MXAN_6080 | Q1CZF8 | 1 |
| Oxoglutarate dehydrogenase (Succinyl-transferring) (EC 1.2.4.2) | Fphi_0973 | B0TWT8 | 1 |
| Oxygen-dependent choline dehydrogenase (CDH) (CHD) (EC 1.1.99.1) (Betaine aldehyde dehydrogenase) (BADH) (EC 1.2.1.8) | betA SAOUHSC_02932 | Q2FV11 | 1 |
| Oxygen-dependent coproporphyrinogen-III oxidase (CPO) (Coprogen oxidase) (Coproporphyrinogenase) (EC 1.3.3.3) | hemF VSAK1_24360 | A6D3W9 | 1 |
| Oxygen-insensitive NADPH nitroreductase (EC 1.-.-.-) | rdxA HP_0954 | O25608 | 1 |
| OxyR | oxyR PA5344 | Q9HTL4 | 1 |
| p-pantothenate cysteine ligase/P-pantothenoylcysteine decarboxylase | Fphi_1904 | B0U1A9 | 1 |
| p-pantothenate cysteine ligase/P-pantothenoylcysteine decarboxylase | dfp FTN_1128 | A0Q6Z9 | 1 |
| P-protein [Includes: Chorismate mutase (CM) (EC 5.4.99.5); Prephenate dehydratase (PDT) (EC 4.2.1.51)] | pheA PA3166 | Q9HZ67 | 1 |
| p-type ATPase-calcium transporter (EC 3.6.3.10) | pacL spr1410 | Q8DP20 | 1 |
| p-type conjugative transfer protein VirB9 | F899_03074 | N9N737 | 1 |
| p2 protein | FSU_0381 | C9RQE3 | 1 |
| P21 prophage-derived major head protein (Head protein gp7) | c1575 | P68649 | 1 |
| p4 lipoprotein | SC1083_1947 | G4AAS1 | 1 |
| Pantothenate kinase (EC 2.7.1.33) (Pantothenic acid kinase) | coaA SPy_1233 M5005_Spy0945 | Q99ZH1 | 1 |
| Pantothenate synthetase (PS) (EC 6.3.2.1) (Pantoate--beta-alanine ligase) (Pantoate-activating enzyme) | panC A1S_0587 | A3M294 | 1 |
| Pantothenate synthetase (PS) (EC 6.3.2.1) (Pantoate--beta-alanine ligase) (Pantoate-activating enzyme) | panC PA4730 | Q9HV69 | 1 |
| Pantothenate synthetase (PS) (EC 6.3.2.1) (Pantoate--beta-alanine ligase) (Pantoate-activating enzyme) | panC b0133 JW0129 | P31663 | 1 |
| Pantothenate synthetase (PS) (EC 6.3.2.1) (Pantoate--beta-alanine ligase) (Pantoate-activating enzyme) | panC VSAK1_05035 | A6D330 | 1 |
| PAP2 family protein | MXAN_2614 | Q1D940 | 1 |
| ParA family protein | VSAK1_19629 | A6CWK6 | 1 |
| Paral putative membrane protein | ybjY SCH_0896 | Q57R59 | 1 |
| Paral putative periplasmic protein | yraP SCH_3208 | Q57JJ8 | 1 |
| ParB family protein | VSAK1_24635 | A6D424 | 1 |
| PAS | MDG893_17197 | A6F5Q5 | 1 |
| Patatin-like phospholipase family protein | MXAN_3780 | Q1D5W1 | 1 |
| Patatin-like phospholipase family protein | MXAN_4295 | Q1D4F3 | 1 |
| Pathogenicity determinant protein pdpA1 | OOM_0944 | I2AZ12 | 1 |
| PblB | SPJ_1850 | C1CGE7 | 1 |
| PBS lyase HEAT-like repeat protein | MXAN_1397 | Q1DCG9 | 1 |
| PDZ domain protein | AC1_3062 | B1R5Z7 | 1 |
| Pectinesterase (EC 3.1.1.11) | ybhC KPN_00791 | A6T6K6 | 1 |
| Pectinesterase (EC 3.1.1.11) | FSU_1115 | C9RMR3 | 1 |
| PelC | pelC PA3062 | Q9HZE6 | 1 |
| Penicillin binding protein (Peptidoglycan synthetase) (EC 2.4.1.129) | ftsI FTT_0697 | Q5NGX9 | 1 |
| Penicillin-binding protein (D-alanyl-D-alanine carboxypeptidase) | dacA SPy_0292 | Q9A1G0 | 1 |
| Penicillin-binding protein 1 | SAOUHSC_01145 | Q2FZ94 | 1 |
| Penicillin-binding protein 1A | SC1083_0089 | G4A5K4 | 1 |
| Penicillin-binding protein 1A | VSAK1_09403 | A6D0C1 | 1 |
| Penicillin-binding protein 1A (EC 3.4.-.-) | mrcA HPSD74_2203 | U4S8K1 | 1 |
| Penicillin-binding protein 1A (PBP-1a) (PBP1a) [Includes: Penicillin-insensitive transglycosylase (EC 2.4.1.129) (Peptidoglycan TGase); Penicillin-sensitive transpeptidase (EC 3.4.16.4) (DD-transpeptidase)] | mrcA ponA NMB1807 | P0A0Z6 | 1 |
| Penicillin-binding protein 1A/1B | ponA SAMEA3374989_01992 SAMEA3375059_01849 | A0A1R2F1N4 | 1 |
| Penicillin-binding protein 1B (PBP-1b) (PBP1b) (Murein polymerase) | B195_04547 | M5QNU4 | 1 |
| Penicillin-binding protein 1B (PBP-1b) (PBP1b) (Murein polymerase) | mrcB PP_4683 | Q88DY5 | 1 |
| Penicillin-binding protein 1B (PBP-1b) (PBP1b) (Murein polymerase) | mrcB Smlt3681 | B2FR43 | 1 |
| Penicillin-binding protein 2 | SAOUHSC_01467 | Q2FYI0 | 1 |
| Penicillin-binding protein 2a (EC 2.3.2.-) (EC 2.4.1.129) | pbp2a spr1823 | Q8DNB6 | 1 |
| Penicillin-binding protein 3 | SAOUHSC_01652 | Q2FY21 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | lpoA KPN78578_35260 KPN_03555 | A6TEG6 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | lpoA VC_0581 | Q9KUE0 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | lpoA VS_0439 | B7VIZ3 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | lpoA YPO3548 | Q0WBA3 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | yraM lpoA S3405 SF3188 AJR25_007355 AJR27_007790 | Q83Q19 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | lpoA SC1083_0783 | G4A7I7 | 1 |
| Penicillin-binding protein activator LpoA (PBP activator LpoA) | yraM lpoA SCH_3205 | Q57JK1 | 1 |
| Penicillin-binding protein activator LpoB (PBP activator LpoB) | lpoB KPN78578_10740 KPN_01102 | A6T7G4 | 1 |
| Penicillin-binding protein activator LpoB (PBP activator LpoB) | lpoB STM1207 | Q8ZQ08 | 1 |
| Penicillin-binding protein, 1A family | CPC_2211 | B1BIQ0 | 1 |
| Penicillin-insensitive murein endopeptidase (EC 3.4.24.-) (D-alanyl-D-alanine-endopeptidase) (DD-endopeptidase) | mepA SSON_2386 | Q3YZN3 | 1 |
| Penicillin-insensitive transglycosylase/penicillin-sensitive transpeptidase (EC 2.4.2.-) (EC 3.4.-.-) | mrcA PP_5084 | Q88CU6 | 1 |
| Pentapeptide repeat domain protein | FSU_0746 | D9S7Y4 | 1 |
| Pentapeptide repeat-containing protein | NSU_3725 | G6EHA4 | 1 |
| PepD protein | pepD KPR_1176 | R4Y600 | 1 |
| Peptidase (EC 3.4.-.-) | FTT_1746 | Q5NEA2 | 1 |
| Peptidase (EC 3.4.15.6) | OOM_1628 | I2B0Q5 | 1 |
| Peptidase B (EC 3.4.11.23) (Aminopeptidase B) | pepB YPO2889 y1342 YP_2566 | P58475 | 1 |
| Peptidase B (EC 3.4.11.23) (Aminopeptidase B) | pepB SSON_2605 | Q3YZ29 | 1 |
| Peptidase family S49 protein (EC 3.4.-.-) | sohB FTT_0459 | Q5NHJ5 | 1 |
| Peptidase family U7 protein (EC 3.4.21.-) | sohB YPO2216 | Q7CIM0 | 1 |
| Peptidase M13 family protein | HPSD74_2176 | U4SAA9 | 1 |
| Peptidase M16 domain protein | FSU_1453 | D9SAB3 | 1 |
| Peptidase M16 domain-containing protein | NSU_0663 | G6E8J2 | 1 |
| Peptidase M28 | NSU_0900 | G6E979 | 1 |
| Peptidase M28 | NSU_4173 | G6EIK2 | 1 |
| Peptidase M48 family protein | HPSD74_1520 | U4SHA0 | 1 |
| Peptidase PmbA | VSAK1_01909 | A6D4C1 | 1 |
| Peptidase S1C, Do | B195_06320 | M5QXS3 | 1 |