| SPBc2 prophage-derived uncharacterized protein YonX | yonX BSU20970 | O31938 | 1 |
| Spermidine acetyltransferase (EC 2.3.1.57) | speG YPO2830 | Q7CJK0 | 1 |
| Spermidine-binding periplasmic protein SpuE | spuE PA0301 | Q9I6J0 | 1 |
| Spermidine/putrescine ABC transporter, spermidine/putrescine-binding protein, putative | SAOUHSC_01049 | Q2G2A8 | 1 |
| Spermidine/putrescine ABC transporter-permease subunit | spuH PP_5177 | Q88CK3 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA AC3_2502 | B1BPW0 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA spr1246 | Q8DPC2 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA SC1083_1421 | G4A9B1 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA HPSD74_0965 | U4SJY9 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA SPy_1102 M5005_Spy0826 | Q99ZS8 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA CD630_10240 | Q18AM3 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potA SAOUHSC_01046 | Q2G2A7 | 1 |
| Spermidine/putrescine import ATP-binding protein PotA (EC 3.6.3.31) | potG potA FTT_0562 | Q5NHA4 | 1 |
| Spermidine/putrescine-binding periplasmic protein (SPBP) | potD STM1222 | P0A2C7 | 1 |
| SPFH domain / Band 7 family protein | HPSD74_1005 | U4SK28 | 1 |
| SPFH domain/Band 7 family protein | PP_4834 | Q88DJ1 | 1 |
| Spore germination protein | SAMEA3374989_03323 SAMEA3375004_02401 SAMEA3375059_02767 | A0A160W5T3 | 1 |
| Sporulation membrane protein SpoIIIJ | oxaA1 CD630_36780 | Q181T0 | 1 |
| Sporulation related protein | NSU_1140 | G6E9W9 | 1 |
| SprD | sprD Fjoh_0980 | A1E5U4 | 1 |
| Ss-1,4-galactosyltransferase | wchK SPCG_0352 | B2ILP8 | 1 |
| Ss-1,4-galactosyltransferase | SPJ_0344 | C1CCC5 | 1 |
| SsDNA exonuclease RecJ | VSAK1_11193 | A6D8T9 | 1 |
| SsrA-binding protein (Small protein B) | smpB PA4768 | Q9HV40 | 1 |
| SsrA-binding protein (Small protein B) | smpB SPy_0504 M5005_Spy0415 | Q9A126 | 1 |
| Stage V sporulation protein D | spoVD AC3_2393 | B1BT46 | 1 |
| Staphopain A (EC 3.4.22.48) (Staphylococcal cysteine proteinase A) (Staphylopain A) | sspP scpA MW1850 | Q8NVS9 | 1 |
| Staphopain A (EC 3.4.22.48) (Staphylococcal cysteine proteinase A) (Staphylopain A) | sspP SAOUHSC_02127 | Q2G2R8 | 1 |
| Staphylococcal secretory antigen SsaA | ssaA SAOUHSC_02883 | Q2FV55 | 1 |
| Staphylococcal secretory antigen ssaA1 | ssaA1 MW2487 | Q79ZY3 | 1 |
| Staphylococcal secretory antigen ssaA2 | ssaA2 MW2217 | Q8NV83 | 1 |
| Staphylococcal secretory antigen ssaA2 | ssaA2 SAOUHSC_02571 | Q2G2J2 | 1 |
| Stearoyl-CoA 9-desaturase (EC 1.14.19.1) | OOM_0637 | I2AY97 | 1 |
| Stomatin QmcA | qmcA KW89_220 | A0A0K2DTK0 | 1 |
| Streptokinase A | ska SPy_1979 M5005_Spy1684 | P10520 | 1 |
| Streptolysin S associated ORF | sagC SPy_0740 | Q9A0K4 | 1 |
| Stress response kinase A (EC 2.7.11.1) (Serine/threonine-protein kinase SrkA) | yihE srkA KPN_04169 | A6TG64 | 1 |
| Stress response kinase A (EC 2.7.11.1) (Serine/threonine-protein kinase SrkA) | srkA PA0486 | Q9I632 | 1 |
| Stress response regulator gls24 homolog | SPy_1262 M5005_Spy0973 | Q99ZE5 | 1 |
| Stringent starvation protein A | sspA pog ssp b3229 JW3198 | P0ACA3 | 1 |
| Stringent starvation protein B (Adapter protein SspB) (Specificity-enhancing factor SspB) | sspB b3228 JW3197 | P0AFZ3 | 1 |
| Sublancin immunity protein SunI (SPBc2 prophage-derived protein YolF) | sunI yolF BSU21490 | O31989 | 1 |
| SUBUNIT OF 2-OXOGLUTARATE OXIDOREDUCTASE | oorA jhp_0537 | Q9ZLP1 | 1 |
| Subunit of a proton-driven complex used for maintenance of outer membrane stability | tolR PP_1220 | Q88NI7 | 1 |
| SucA protein | sucA KPR_3846 | R4YH31 | 1 |
| Succinate dehydrogenase (C subunit) | sdhC PA1581 | Q9I3D7 | 1 |
| Succinate dehydrogenase cytochrome b558 subunit | sdhC MXAN_1072 | Q1DDE1 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA ABAYE0776 | B0VEH0 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA B195_20290 | M5QU95 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA citF BSU28440 | P08065 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA YPO1111 | Q7CH44 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA ACINWC323_2944 | K9BPL7 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA Z0877 ECs0748 | P0AC43 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | OOM_0569 | I2AY40 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA SCH_0738 | Q57RL7 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.5.1) | sdhA FTT_0074 | Q5NIJ3 | 1 |
| Succinate dehydrogenase flavoprotein subunit (EC 1.3.99.1) | sdhA Cj0437 | Q0PB73 | 1 |
| Succinate dehydrogenase hydrophobic membrane anchor subunit | sdhD FTT_0073 | Q5NIJ4 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | sdhB BSU28430 | P08066 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | sdhB ECs0749 Z0878 | Q8X9A8 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | OOM_0570 | I2AY41 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | sdhB SCH_0739 | Q57RL6 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | frdB SCH_4221 | Q57GN5 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.5.1) | sdhB FTT_0075 | Q5NIJ2 | 1 |
| Succinate dehydrogenase iron-sulfur subunit (EC 1.3.99.1) | sdhB B195_20295 | M5QD29 | 1 |
| Succinate dehydrogenase, cytochrome b556 (EC 1.3.99.1) | sdhC FTT_0072 | Q5NIJ5 | 1 |
| Succinate dehydrogenase, flavoprotein chain TC0881, putative (EC 1.3.99.1) | SAOUHSC_01104 | Q2FZC8 | 1 |
| Succinate dehydrogenase, flavoprotein subunit (EC 1.3.99.1) | sdhA MXAN_3539 | Q1D6J1 | 1 |
| Succinate dehydrogenase, iron-sulfur subunit (EC 1.3.99.1) | sdhB ABSDF0774 | B0VSK6 | 1 |
| Succinate semialdehyde dehydrogenase (NAD(P)+ dependent) | gabD FTN_0127 | A0Q473 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD Fphi_0247 | B0TZ24 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD NMB0960 | Q9JZP3 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD B195_20320 | M5QD33 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD PP_4185 | Q88FB3 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD YPO1116 | Q7CH48 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD Rv0952 MTCY10D7.22c | P9WGC7 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD OOM_1171 | I2AZK3 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD Smlt3752 | B2FRS2 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD SCH_0743 | Q57RL2 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD SAOUHSC_01218 | Q2FZ36 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD KW89_2657 | A0A0K2E0L6 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit alpha (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | sucD FTT_0503c | Q5NHF4 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC Fphi_0246 | B0TZ23 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC ABAYE0783 | B0VEF2 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC NMB0959 | Q9JZP4 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC B195_20315 | M5QUA1 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC YPO1115 y3065 YP_1041 | Q8ZH00 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC NMC0935 | A1KTM6 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC Rv0951 MTCY10D7.23c | P9WGC5 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC OOM_1172 | I2AZK4 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC SCH_0742 | Q57RL3 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC SAOUHSC_01216 | Q2FZ37 | 1 |
| Succinate--CoA ligase [ADP-forming] subunit beta (EC 6.2.1.5) (Succinyl-CoA synthetase subunit beta) (SCS-beta) | sucC FTT_0504c | Q5NHF3 | 1 |
| Succinate-semialdehyde dehydrogenase | VSAK1_21049 | A6CYI7 | 1 |
| Succinate-semialdehyde dehydrogenase I (EC 1.2.1.16) | gabD B195_01570 | M5QN94 | 1 |
| Succinate-semialdehyde dehydrogenase [NADP(+)] (SSDH) (EC 1.2.1.79) | gabD ycnH BSU03910 | P94428 | 1 |
| Succinate-semialdehyde dehydrogenase [NADP(+)] 1 (SSADH 1) (SSDH 1) (EC 1.2.1.79) | gabD1 Rv0234c | P9WNX9 | 1 |
| Succinate-semialdehyde dehydrogenase [NADP(+)] GabD (SSDH) (EC 1.2.1.79) | gabD b2661 JW2636 | P25526 | 1 |
| Succinyl-diaminopimelate desuccinylase (SDAP desuccinylase) (EC 3.5.1.18) (N-succinyl-LL-2,6-diaminoheptanedioate amidohydrolase) | dapE VSAK1_08496 | A6D082 | 1 |
| Sucrose operon repressor (SCR operon regulatory protein) | scrR spr1621 | Q8DNN6 | 1 |