| Hypothetical membrane protein | FTT_0924 | Q5NGC2 | 1 |
| Hypothetical membrane protein | FTT_0956c | Q5NG96 | 1 |
| Hypothetical membrane protein | FTT_1198c | Q5NFN5 | 1 |
| Hypothetical membrane protein | FTT_1406c | Q5NF42 | 1 |
| Hypothetical membrane protein | FTT_1407c | Q5NF41 | 1 |
| Hypothetical membrane protein | FTT_1495c | Q5NEW2 | 1 |
| Hypothetical membrane protein | FTT_1496c | Q5NEW1 | 1 |
| Hypothetical membrane protein | FTT_1525c | Q5NET7 | 1 |
| Hypothetical membrane protein | FTT_1621c | Q5NEK8 | 1 |
| Hypothetical membrane protein | FTT_1629c | Q5NEK0 | 1 |
| Hypothetical membrane protein | FTT_1653 | Q5NEI1 | 1 |
| Hypothetical membrane protein | FTT_1676 | Q5NEG0 | 1 |
| Hypothetical membrane protein | FTT_1777c | Q5NE76 | 1 |
| Hypothetical membrane protein | FTT_1778c | Q5NE75 | 1 |
| Hypothetical muconate cycloisomerase I | VSAK1_10208 | A6D0P9 | 1 |
| Hypothetical phage protein | YPO2124 | Q7CIF6 | 1 |
| Hypothetical protei | SPy_1840 | Q99Y71 | 1 |
| Hypothetical secretion protein | VSAK1_25905 | A6D0X1 | 1 |
| Hypothetical transcriptional regulator | VSAK1_00597 | A6D180 | 1 |
| Hypothetical xanthine/uracil permease | VSAK1_24945 | A6CZ45 | 1 |
| Hypoxanthine phosphoribosyltransferase (EC 2.4.2.8) | SAOUHSC_00485 | Q2G0R1 | 1 |
| Hypoxanthine-guanine phosphoribosyltransferase | VSAK1_04730 | A6D6A9 | 1 |
| Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) (HGPRTase) (EC 2.4.2.8) | hprT hpt BSU00680 | P37472 | 1 |
| IcmF1 | icmF1 PA0077 | Q9I755 | 1 |
| IgA-specific serine endopeptidase (EC 3.4.21.72) | NMH_2319 | E6N0K3 | 1 |
| IgA-specific serine endopeptidase (EC 3.4.21.72) | iga1 NTHI1164 | Q4QLS0 | 1 |
| Igab-domain of IgA protease (Fragment) | 0 | Q06468 | 1 |
| ilv operon leader peptide (ilvGMEDA operon attenuator peptide) | ilvL b3766 JW3739 | P62522 | 1 |
| Imidazole glycerol phosphate synthase subunit HisF (EC 4.1.3.-) (IGP synthase cyclase subunit) (IGP synthase subunit HisF) (ImGP synthase subunit HisF) (IGPS subunit HisF) | hisF VSAK1_00215 | A6D5K6 | 1 |
| Imidazole glycerol phosphate synthase subunit HisH 1 (EC 2.4.2.-) (IGP synthase glutamine amidotransferase subunit 1) (IGP synthase subunit HisH 1) (ImGP synthase subunit HisH 1) (IGPS subunit HisH 1) | hisH1 PA5142 | Q9HU42 | 1 |
| Imidazoleglycerol-phosphate dehydratase (IGPD) (EC 4.2.1.19) | hisB B195_02216 | M5QMH3 | 1 |
| Imidazoleglycerol-phosphate dehydratase (IGPD) (EC 4.2.1.19) | hisB Rv1601 MTCY336.03c | P9WML9 | 1 |
| Immunogenic protein | VC_0430 | Q9KUT5 | 1 |
| Immunogenic protein | VS_0355 | B7VIC7 | 1 |
| Immunogenic protein MPT63 (16 kDa immunoprotective extracellular protein) (Antigen MPT63) | mpt63 Rv1926c MTCY09F9.38 | P9WIP1 | 1 |
| Immunogenic protein MPT64 (Antigen MPT64) | mpt64 Rv1980c MTCY39.39 | P9WIN9 | 1 |
| Immunogenic secreted protein | isp SPy_2025 | Q99XU7 | 1 |
| Immunoglobulin A1 protease (IgA1 protease) (EC 3.4.24.13) (IgA-specific zinc metalloproteinase) | iga spr1042 | Q59947 | 1 |
| Immunoglobulin A1 protease (IgA1 protease) (EC 3.4.24.13) (IgA-specific zinc metalloproteinase) | iga SP_1154 | Q97QP7 | 1 |
| Immunoglobulin-binding protein sbi | sbi SACOL2418 | Q5HDD7 | 1 |
| Immunoglobulin-binding protein sbi | sbi SAOUHSC_02706 | Q2FVK5 | 1 |
| Immunoreactive 23 kDa antigen | PGN_0336 | B2RHL0 | 1 |
| Immunoreactive 23 kDa antigen PG66 | PG_0234 | F5H9H1 | 1 |
| Immunoreactive 46 kDa antigen | PGN_1767 | B2RLP1 | 1 |
| Immunoreactive 46 kDa antigen PG99 | PG_1798 | F5H9F8 | 1 |
| Immunoreactive 47 kDa antigen | PGN_0852 | B2RJ26 | 1 |
| Immunoreactive 53 kDa antigen PG123 | PG_2167 | F5H9B8 | 1 |
| Immunoreactive 61 kDa antigen | PGN_0152 | B2RH26 | 1 |
| Immunoreactive 63 kDa antigen PG102 | PG_2100 | Q7MT80 | 1 |
| Immunoreactive 84 kDa antigen | PGN_0509 | B2RI33 | 1 |
| Immunoreactive 84 kDa antigen PG93 | PG_1604 | F5H8T8 | 1 |
| Indole-3-glycerol phosphate synthase (IGPS) (EC 4.1.1.48) | trpC spr1634 | Q8DNM6 | 1 |
| Indole-3-glycerol phosphate synthase (IGPS) (PRAI) (EC 4.1.1.48) (EC 5.3.1.24) (N-(5'-phosphoribosyl)anthranilate isomerase) | trpC trpF FTN_1770 | A0Q8Q5 | 1 |
| Inducible lysine decarboxylase (LDC) (EC 4.1.1.18) | cadA ldcI b4131 JW4092 | P0A9H3 | 1 |
| Inhibitor of cysteine peptidase | icp PA0778 | Q9I5G0 | 1 |
| Inner membrane ABC transporter ATP-binding protein YddA (CDS102) | yddA b1496 JW5242 | P31826 | 1 |
| Inner membrane ABC transporter permease protein YcjO | ycjO b1311 JW1304 | P0AFR7 | 1 |
| Inner membrane efflux transporter CmeB (Multidrug efflux system CmeABC) | cmeB Cj0366c | Q0PBE4 | 1 |
| Inner membrane protein YabI | yabI b0065 JW5005 | P30149 | 1 |
| Inner membrane protein YbaN | ybaN b0468 JW0457 | P0AAR5 | 1 |
| Inner membrane protein YccS | yccS b0960 JW5128 | P75870 | 1 |
| Inner membrane protein YcfZ | ycfZ b1121 JW1107 | P75961 | 1 |
| Inner membrane protein YdgC | ydgC b1607 JW1599 | P0ACX0 | 1 |
| Inner membrane protein YeeR | yeeR b2001 JW1983 | P76361 | 1 |
| Inner membrane protein YghQ | yghQ b2983 JW5490 | Q46841 | 1 |
| Inner membrane protein YgiZ | ygiZ b3027 JW2995 | Q46867 | 1 |
| Inner membrane protein YnbA | ynbA b1408 JW1405 | P76090 | 1 |
| Inner membrane protein YphA | yphA b2543 JW2527 | P0AD47 | 1 |
| Inner membrane transport permease YbhS | ybhS b0793 JW0777 | P0AFQ2 | 1 |
| Inorganic pyrophosphatase (EC 3.6.1.1) (Pyrophosphate phospho-hydrolase) (PPase) | ppa YPO3521 y0663 YP_0562 | Q8ZB98 | 1 |
| Inorganic pyrophosphatase (EC 3.6.1.1) (Pyrophosphate phospho-hydrolase) (PPase) | ppa Rv3628 MTCY15C10.24 | P9WI55 | 1 |
| Inorganic pyrophosphatase (EC 3.6.1.1) (Pyrophosphate phospho-hydrolase) (PPase) | ppa b4226 JW4185 | P0A7A9 | 1 |
| Inorganic pyrophosphatase (EC 3.6.1.1) (Pyrophosphate phospho-hydrolase) (PPase) | ppa Smlt3902 | B2FT63 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB Fphi_0160 | B0TYL6 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB NMB1201 | Q9JZB5 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB Cj1058c | Q0P9J4 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB B195_11511 | M5QGZ4 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB MXAN_3777 | Q1D5W4 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB HPSD74_0293 | U4SKL8 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB VSAK1_12015 | A6D2X9 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB SPy_2206 M5005_Spy1857 | P0C0H7 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB OOM_1248 | I2AZS3 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB FSU_3016 | C9RLM3 | 1 |
| Inosine-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPD) (IMPDH) (EC 1.1.1.205) | guaB SAOUHSC_00374 | Q2G0Y7 | 1 |
| Inositol monophosphatase | B195_11646 | M5QHN7 | 1 |
| Inositol monophosphatase / glycerol-2-phosphatase (EC 3.1.3.19) (EC 3.1.3.25) | suhB PP_0838 | Q88PL2 | 1 |
| Inositol monophosphatase family protein | FTN_1346 | A0Q7K6 | 1 |
| Inositol phosphate phosphatase IpgD (EC 3.1.3.78) (Effector protein IpgD) (Phosphatidylinositol 4,5-bisphosphate 4-phosphatase) | ipgD CP0133 | Q07566 | 1 |
| Inositol phosphate phosphatase SopB (EC 3.1.3.-) (Effector protein SopB) | sopB sigD STM1091 | O30916 | 1 |
| Inositol-1-monophosphatase (EC 3.1.3.25) | SPy_1247 | Q99ZF9 | 1 |
| Inositol-1-monophosphatase (EC 3.1.3.25) | suhB FTT_1382 | Q5NF65 | 1 |
| Inositol-5'-monophosphate dehydrogenase (IMP dehydrogenase) (IMPDH) (IMPD) (EC 1.1.1.205) | guaB CD630_23350 | Q185K9 | 1 |
| Insecticidal toxin-like protein | FSU_1267 | C9RNI8 | 1 |
| Insecticidal toxin-like protein | FSU_1265 | D9S9U6 | 1 |
| Integral membrane ATP-dependent zinc metallopeptidase / HflK-HflC complex (EC 3.4.24.-) | hflK PP_4892 | Q88DD5 | 1 |
| Integrase/recombinase | BV98_002868 | A0A086P7F8 | 1 |
| Integration host factor subunit alpha (IHF-alpha) | ihfA himA STM1339 | P0A1S0 | 1 |
| Integration host factor subunit alpha (IHF-alpha) | ihfA himA HPSD74_0117 | U4SQ51 | 1 |
| Integration host factor subunit beta (IHF-beta) | ihfB himD hip b0912 JW0895 | P0A6Y1 | 1 |
| Integration host factor subunit beta (IHF-beta) | ihfB himD SSON_0914 | Q3Z3K9 | 1 |