| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| P0ABJ3 | Cytochrome bo(3) ubiquinol oxidase subunit 3; Cytochrome o ubiquinol oxidase subunit 3; Cytochrome o subunit 3; Oxidase bo(3) subunit 3; Ubiquinol oxidase chain C; Ubiquinol oxidase polypeptide III; Ubiquinol oxidase subunit 3; | cyoC; b0430 JW0420; | NP_414964.1;YP_488722.1; | 204 | escherichia-coli | 
| P0ABJ6 | Cytochrome bo(3) ubiquinol oxidase subunit 4; Cytochrome o ubiquinol oxidase subunit 4; Cytochrome o subunit 4; Oxidase bo(3) subunit 4; Ubiquinol oxidase chain D; Ubiquinol oxidase polypeptide IV; Ubiquinol oxidase subunit 4; | cyoD; b0429 JW0419; | NP_414963.1;YP_488721.1; | 109 | escherichia-coli | 
| P0AEA5 | Protoheme IX farnesyltransferase; EC 2.5.1.-; Heme B farnesyltransferase; Heme O synthase; | cyoE; b0428 JW0418; | NP_414962.1;YP_488720.1; | 296 | escherichia-coli | 
| P16676 | Sulfate/thiosulfate import ATP-binding protein CysA; EC 3.6.3.25; Sulfate-transporting ATPase; | cysA; b2422 JW2415; | NP_416917.1;YP_490658.1; | 365 | escherichia-coli | 
| P0A9F3 | HTH-type transcriptional regulator CysB; Cys regulon transcriptional activator; | cysB; b1275 JW1267; | NP_415791.1;YP_489543.1; | 324 | escherichia-coli | 
| P0A6J1 | Adenylyl-sulfate kinase; EC 2.7.1.25; APS kinase; ATP adenosine-5'-phosphosulfate 3'-phosphotransferase; Adenosine-5'-phosphosulfate kinase; | cysC; b2750 JW2720; | NP_417230.1;YP_490959.1; | 201 | escherichia-coli | 
| P21156 | Sulfate adenylyltransferase subunit 2; EC 2.7.7.4; ATP-sulfurylase small subunit; Sulfate adenylate transferase; SAT; | cysD; b2752 JW2722; | NP_417232.1;YP_490961.1; | 302 | escherichia-coli | 
| P0A9D4 | Serine acetyltransferase; SAT; EC 2.3.1.30; | cysE; b3607 JW3582; | NP_418064.1;YP_491826.1; | 273 | escherichia-coli | 
| P0AEA8 | Siroheme synthase; EC 4.99.1.4; EC 1.3.1.76; UROM; Uroporphyrinogen III methylase; SUMT; EC 2.1.1.107; Urogen III methylase; | cysG; b3368 JW3331; | NP_417827.1;YP_492063.1; | 457 | escherichia-coli | 
| P17854 | Phosphoadenosine phosphosulfate reductase; EC 1.8.4.8; 3'-phosphoadenylylsulfate reductase; PAPS reductase, thioredoxin dependent; PAPS sulfotransferase; PAdoPS reductase; | cysH; b2762 JW2732; | NP_417242.1;YP_490971.1; | 244 | escherichia-coli | 
| P17846 | Sulfite reductase [NADPH] hemoprotein beta-component; SiR-HP; SiRHP; EC 1.8.1.2; | cysI; b2763 JW2733; | NP_417243.1;YP_490972.1; | 570 | escherichia-coli | 
| P38038 | Sulfite reductase [NADPH] flavoprotein alpha-component; SiR-FP; EC 1.8.1.2; | cysJ; b2764 JW2734; | NP_417244.1;YP_490973.1; | 599 | escherichia-coli | 
| P0ABK5 | Cysteine synthase A; CSase A; EC 2.5.1.47; OAS-TL A; O-acetylserine sulfhydrylase A; S-carboxymethylcysteine synthase; EC 4.5.1.5; Sulfate starvation-induced protein 5; SSI5; O-acetylserine (thiol)-lyase A; | cysK; cysZ; b2414 JW2407; | NP_416909.1;YP_490650.1; | 323 | escherichia-coli | 
| P16703 | Cysteine synthase B; CSase B; EC 2.5.1.47; OAS-TL B; O-acetylserine sulfhydrylase B; O-acetylserine (thiol)-lyase B; | cysM; b2421 JW2414; | NP_416916.1;YP_490657.1; | 303 | escherichia-coli | 
| P23845 | Sulfate adenylyltransferase subunit 1; EC 2.7.7.4; ATP-sulfurylase large subunit; Sulfate adenylate transferase; SAT; | cysN; b2751 JW2721; | NP_417231.1;YP_490960.1; | 475 | escherichia-coli | 
| P16700 | Thiosulfate-binding protein; | cysP; b2425 JW2418; | NP_416920.1;YP_490661.1; | 338 | escherichia-coli | 
| P22255 | 3'(2'),5'-bisphosphate nucleotidase CysQ; EC 3.1.3.7; 3'(2'),5-bisphosphonucleoside 3'(2')-phosphohydrolase; 3'-phosphoadenosine 5'-phosphate phosphatase; PAP phosphatase; DPNPase; | cysQ; amtA; b4214 JW4172; | NP_418635.1;YP_492356.1; | 246 | escherichia-coli | 
| P16701 | Sulfate transport system permease protein CysT; | cysU; cysT; b2424 JW2417; | NP_416919.1;YP_490660.1; | 277 | escherichia-coli | 
| P0AEB0 | Sulfate transport system permease protein CysW; | cysW; b2423 JW2416; | YP_026168.2;YP_490659.1; | 291 | escherichia-coli | 
| P0A6J3 | Sulfate transporter CysZ; | cysZ; b2413 JW2406; | NP_416908.1;YP_490649.1; | 253 | escherichia-coli | 
