| SufI | VS_3101 | B7VMV9 | 1 |
| SufS activator complex, sufB subunit | sufB FTN_0851 | A0Q674 | 1 |
| Sugar (And other) transporter family protein | KW89_2730 | A0A0K2E0B6 | 1 |
| Sugar ABC transporter substrate-binding protein | B195_06445 | M5QXW1 | 1 |
| Sugar ABC transporter, sugar-binding protein | AC3_1240 | B1BTJ5 | 1 |
| Sugar binding protein | rbsB YPO2501 | Q7CJ59 | 1 |
| Sugar fermentation stimulation protein A | sfsA SSON_0158 | Q3Z5L1 | 1 |
| Sugar Specific PTS family, glucose-specific IIBCcomponent | ptsG SCH_1153 | Q57QF2 | 1 |
| Sugar transamine/perosamine synthetase (EC 4.2.1.-) | wbtI FTT_1455c | Q5NF00 | 1 |
| Sugar-binding periplasmic protein | YPO0860 | Q0WIH7 | 1 |
| Sugar_tr, Sugar (And other) transporter | OOM_1431 | I2B085 | 1 |
| Sulfatase | NSU_3439 | G6EGK9 | 1 |
| Sulfatase family protein | AC1_0732 | B1RB68 | 1 |
| Sulfate ABC transporter | sbp-II PP_5171 | Q88CK9 | 1 |
| Sulfate ABC transporter, inner membrane subunit CysT | cysU PP_5170 | Q88CL0 | 1 |
| Sulfate ABC transporter, periplasmic sulfate-binding protein | sbp NMB1017 | Q9JZK1 | 1 |
| Sulfate ABC transporter, sulfate-binding family protein | J804_0105 | A0A014DBH2 | 1 |
| Sulfate adenylyltransferase subunit 1 (EC 2.7.7.4) (ATP-sulfurylase large subunit) (Sulfate adenylate transferase) (SAT) | cysN SFV_2747 | Q0T1I2 | 1 |
| Sulfate adenylyltransferase subunit 1 (EC 2.7.7.4) (ATP-sulfurylase large subunit) (Sulfate adenylate transferase) (SAT) | cysN VSAK1_01794 | A6D498 | 1 |
| Sulfate adenylyltransferase subunit 2 (EC 2.7.7.4) (ATP-sulfurylase small subunit) (Sulfate adenylate transferase) (SAT) | cysD SSON_2900 | Q3YYB0 | 1 |
| Sulfate permease family protein | VSAK1_10008 | A6D936 | 1 |
| Sulfate transporter CysZ | cysZ PA0846 | Q9I595 | 1 |
| Sulfate transporter CysZ | cysZ VSAK1_08808 | A6D8A8 | 1 |
| Sulfate-binding protein | sbp STM4063 | P02906 | 1 |
| Sulfate-binding protein | sbp PA0283 | Q9I6K7 | 1 |
| Sulfite reductase | cysI PA1838 | Q9I2Q7 | 1 |
| Sulfite reductase [ferredoxin] (EC 1.8.7.1) | sir nirA Rv2391 | P9WJ03 | 1 |
| Sulfite reductase [NADPH] flavoprotein alpha-component (SiR-FP) (EC 1.8.1.2) | cysJ SSON_2917 | Q3YY94 | 1 |
| Sulfite reductase [NADPH] flavoprotein alpha-component (SiR-FP) (EC 1.8.1.2) | cysJ VSAK1_13591 | A6D433 | 1 |
| Sulfite reductase [NADPH] hemoprotein beta-component (SiR-HP) (SiRHP) (EC 1.8.1.2) | cysI SSON_2916 | Q3YY95 | 1 |
| Sulfite reductase [NADPH] hemoprotein beta-component (SiR-HP) (SiRHP) (EC 1.8.1.2) | cysI VSAK1_13586 | A6D432 | 1 |
| Sulfoquinovosidase (SQase) (EC 3.2.1.199) | yihQ squQ b3878 JW3849 | P32138 | 1 |
| Sulfur compound ABC transporter-permease subunit | sctS PP_0226 | Q88RA7 | 1 |
| Sulfurtransferase | SSON_1400 | Q3Z2A3 | 1 |
| Sun protein | VSAK1_24410 | A6D3X9 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | Fphi_0966 | B0TWT1 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | sodB FTN_1642 | A0Q8D5 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | sodA YPO4061 | Q7CFQ2 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | sodB MXAN_4826 | Q1D2Y6 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | sodB SCH_1450 | Q57PK5 | 1 |
| Superoxide dismutase (EC 1.15.1.1) | sodB FTT_0068 | Q5NIJ9 | 1 |
| Superoxide dismutase [Cu-Zn] (EC 1.15.1.1) | sodC YPO3375 | Q74XS8 | 1 |
| Superoxide dismutase [Cu-Zn] (EC 1.15.1.1) | F958_00883 | A0A0E2GDZ6 | 1 |
| Superoxide dismutase [Cu-Zn] (EC 1.15.1.1) | SC1083_1781 | G4AAA8 | 1 |
| Superoxide dismutase [Cu-Zn] (EC 1.15.1.1) | sodC2 Smlt0161 | B2FHC7 | 1 |
| Superoxide dismutase [Cu-Zn] (EC 1.15.1.1) | sodC FTT_0879 | Q5NGG3 | 1 |
| Superoxide dismutase [Cu-Zn] 1 (EC 1.15.1.1) (sodCI) | sodC1 sodC STM1044 | P0CW86 | 1 |
| Superoxide dismutase [Fe] (EC 1.15.1.1) | sodB STM1431 | P0A2F4 | 1 |
| Superoxide dismutase [Fe] (EC 1.15.1.1) | sodB sod sodA Rv3846 MTCY01A6.22c | P9WGE7 | 1 |
| Superoxide dismutase [Fe] (EC 1.15.1.1) | sodB b1656 JW1648 | P0AGD3 | 1 |
| Superoxide dismutase [Fe] (EC 1.15.1.1) | sodB Cj0169 | Q0PBW9 | 1 |
| Superoxide dismutase [Mn] (EC 1.15.1.1) | sodA STM4055 | P43019 | 1 |
| Superoxide dismutase [Mn] (EC 1.15.1.1) | sodA sod SPy_1406 M5005_Spy1145 | P0C0I1 | 1 |
| Superoxide dismutase [Mn] (EC 1.15.1.1) (MnSOD) | sodA b3908 JW3879 | P00448 | 1 |
| Superoxide dismutase [Mn] 1 (EC 1.15.1.1) | sodA SAOUHSC_01653 | P0A0J3 | 1 |
| Suppressor of ompF assembly mutants | asmA SFV_2123 | Q0T367 | 1 |
| Surface antigen | NSU_2154 | G6ECT3 | 1 |
| Surface antigen family protein | NMH_2140 | E6MZX1 | 1 |
| Surface antigen family protein | KW89_1283 | A0A0K2DW87 | 1 |
| Surface exclusion | traT KPN_pKPN3p06033 KPN_pKPN4p07156 | A6TII9 | 1 |
| Surface protein PspC | SPJ_2217 | C1CHJ0 | 1 |
| Surface-adhesin protein | NTHI0267 | Q4QP12 | 1 |
| Surfactin synthase subunit 1 | srfAA srfA srfA1 BSU03480 | P27206 | 1 |
| Surfactin synthase subunit 2 | srfAB comL srfA2 BSU03490 | Q04747 | 1 |
| Tagatose 1,6-diphosphate aldolase (EC 4.1.2.40) (D-tagatose-1,6-bisphosphate aldolase) (Tagatose-bisphosphate aldolase) | lacD lmo0539 | Q8Y9I9 | 1 |
| Tagatose 1,6-diphosphate aldolase 1 (EC 4.1.2.40) (D-tagatose-1,6-bisphosphate aldolase 1) (Tagatose-bisphosphate aldolase 1) | lacD1 lacD.1 SPy_1704 M5005_Spy1395 | P63703 | 1 |
| Tagatose 1,6-diphosphate aldolase 2 (EC 4.1.2.40) (D-tagatose-1,6-bisphosphate aldolase 2) (Tagatose-bisphosphate aldolase 2) | lacD2 lacD.2 SPy_1919 M5005_Spy1635 | P63705 | 1 |
| Tagatose-6-phosphate kinase (EC 2.7.1.144) | fruB spr0779 | Q8DQ96 | 1 |
| Tagatose-6-phosphate kinase (EC 2.7.1.144) | fruB SPy_0854 | Q9A0B1 | 1 |
| Tagatose-6-phosphate kinase (EC 2.7.1.144) (Phosphotagatokinase) | lacC spr1074 | Q8DPP1 | 1 |
| Tail-specific protease | VC_1496 | Q9KRY7 | 1 |
| Tail-specific protease | VS_1417 | B7VNK4 | 1 |
| Tail-specific protease (EC 3.4.21.102) | HPSD74_2186 | U4SAM0 | 1 |
| Taurine transport system periplasmic protein | tauA SSON_0343 | Q3Z543 | 1 |
| TcpF | CPC_A0145 | B1BF88 | 1 |
| TcpJ | tcpJ | Q2L5X2 | 1 |
| Teichoic acid biosynthesis protein F | VSAK1_09588 | A6D0F8 | 1 |
| Teichoic acid glycerol-phosphate transferase (EC 2.7.8.45) | tarF SAOUHSC_00223 | Q2G1C1 | 1 |
| Teichoic acid phosphorylcholine esterase/choline binding protein E (CbpE) | lytD spr0831 | Q8DQ62 | 1 |
| Teichoic acid ribitol-phosphate polymerase TarK (EC 2.7.8.14) (Poly(ribitol phosphate) polymerase TarK) (Ribitol-phosphate polymerase TarK) (Tar polymerase TarK) | tarK SAOUHSC_00222 | Q2G1C2 | 1 |
| Teichoic acids export ATP-binding protein TagH (EC 3.6.3.40) | tagH SAOUHSC_00641 | Q2G2L1 | 1 |
| Teicoplanin resistance protein | vanZ CD630_12400 | Q18BA1 | 1 |
| TelA-like protein SAOUHSC_01408 | SAOUHSC_01408 | Q2FYM7 | 1 |
| Tellurite resistance | tehB spr0880 | Q8DQ28 | 1 |
| Tellurium resistance protein | terZ YPO0294 | Q0WK12 | 1 |
| Tellurium resistance protein | terD YPO0298 | Q0WK08 | 1 |
| Tellurium resistance protein | terE YPO0299 | Q7CKQ2 | 1 |
| Tellurium resistance protein TerD | B195_04022 | M5QNK4 | 1 |
| Tellurium resistance protein terD2 | terD2 CD630_16360 | Q186J0 | 1 |
| Tellurium resistance protein TerE | B195_04027 | M5QZ83 | 1 |
| Terpene synthase, metal binding domain protein | MXAN_6247 | Q1CYZ7 | 1 |
| Tetraacyldisaccharide 4'-kinase (EC 2.7.1.130) (Lipid A 4'-kinase) | lpxK HP_0328 | O25095 | 1 |
| Tetraacyldisaccharide 4'-kinase (EC 2.7.1.130) (Lipid A 4'-kinase) | lpxK FTT_0110 | Q5NIG2 | 1 |
| Tetratricopeptide repeat family protein | NMH_0299 | E6MU57 | 1 |
| Tetratricopeptide repeat protein | MXAN_6747 | Q1CXK9 | 1 |
| Tetratricopeptide repeat protein | MXAN_4775 | Q1D336 | 1 |
| Tetratricopeptide repeat protein | AC1_1500 | B1R8S7 | 1 |
| Tetratricopeptide repeat protein | CPC_2227 | B1BIN5 | 1 |
| Tetratricopeptide repeat protein | FSU_0522 | D9S6M3 | 1 |
| Tetratricopeptide TPR_4 | NSU_1877 | G6EC06 | 1 |