| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P0AGC0 | Hexose phosphate transport protein; | uhpT; b3666 JW3641; | NP_418122.1;YP_491768.1; | 463 | escherichia-coli |
| Q47706 | Membrane-associated protein UidC; | uidC; gusC; b1615 JW1607; | NP_416132.2;YP_489878.1; | 421 | escherichia-coli |
| P0CE45 | Glucuronide carrier protein; Glucuronide permease; | uidB; gusB uidP; | NULL | 457 | escherichia-coli |
| P0CE44 | Glucuronide carrier protein homolog; | uidB; gusB uidP; b1616 JW1608; | NP_416133.1;YP_489879.1; | 457 | escherichia-coli |
| P0ACT6 | HTH-type transcriptional regulator UidR; Gus operon repressor; Uid operon repressor; | uidR; gusR; b1618 JW1610; | NP_416135.1;YP_489881.1; | 196 | escherichia-coli |
| P69822 | Ascorbate-specific phosphotransferase enzyme IIB component; EC 2.7.1.69; Ascorbate-specific PTS system EIIB component; | ulaB; sgaB yjfT; b4194 JW4152; | NP_418615.1;YP_492336.1; | 101 | escherichia-coli |
| P39301 | Ascorbate-specific permease IIC component UlaA; Ascorbate-specific PTS system EIIC component; | ulaA; sgaT yjfS; b4193 JW5744; | NP_418614.4;YP_492335.1; | 465 | escherichia-coli |
| P39304 | 3-keto-L-gulonate-6-phosphate decarboxylase UlaD; EC 4.1.1.85; 3-dehydro-L-gulonate-6-phosphate decarboxylase; KGPDC; L-ascorbate utilization protein D; | ulaD; sgaH yjfV; b4196 JW4154; | NP_418617.1;YP_492338.1; | 216 | escherichia-coli |
| P69820 | Ascorbate-specific phosphotransferase enzyme IIA component; EC 2.7.1.-; PTS system ascorbate-specific EIIA component; | ulaC; ptxA sgaA yjfU; b4195 JW4153; | NP_418616.1;YP_492337.1; | 154 | escherichia-coli |
| P39305 | L-ribulose-5-phosphate 3-epimerase UlaE; EC 5.1.3.22; L-ascorbate utilization protein E; L-xylulose-5-phosphate 3-epimerase; | ulaE; sgaU yjfW; b4197 JW4155; | NP_418618.1;YP_492339.1; | 284 | escherichia-coli |
| P39306 | L-ribulose-5-phosphate 4-epimerase UlaF; EC 5.1.3.4; L-ascorbate utilization protein F; Phosphoribulose isomerase; | ulaF; sgaE yjfX; b4198 JW4156; | NP_418619.1;YP_492340.1; | 228 | escherichia-coli |
| P39300 | Probable L-ascorbate-6-phosphate lactonase UlaG; EC 3.1.1.-; L-ascorbate utilization protein G; | ulaG; yjfR; b4192 JW5868; | NP_418613.2;YP_492334.1; | 354 | escherichia-coli |
| P0A9W0 | HTH-type transcriptional regulator UlaR; | ulaR; yjfQ; b4191 JW4149; | NP_418612.1;YP_492333.1; | 251 | escherichia-coli |
| P04152 | Protein UmuC; | umuC; b1184 JW1173; | NP_415702.1;YP_489451.1; | 422 | escherichia-coli |
| P0AG11 | Protein UmuD; EC 3.4.21.-; [Cleaved into: Protein UmuD']; | umuD; b1183 JW1172; | NP_415701.1;YP_489450.1; | 139 | escherichia-coli |
| P12295 | Uracil-DNA glycosylase; UDG; EC 3.2.2.27; | ung; b2580 JW2564; | NP_417075.1;YP_490808.1; | 229 | escherichia-coli |
| P60932 | Undecaprenyl-diphosphatase; EC 3.6.1.27; Bacitracin resistance protein; Undecaprenyl pyrophosphate phosphatase; | uppP; bacA upk; b3057 JW3029; | NP_417529.1;YP_491249.1; | 273 | escherichia-coli |
| P60472 | Ditrans,polycis-undecaprenyl-diphosphate synthase; (2E,6E)-farnesyl-diphosphate specific; EC 2.5.1.31; Ditrans,polycis-undecaprenylcistransferase; Undecaprenyl diphosphate synthase; UDS; Undecaprenyl pyrophosphate synthase; UPP synthase; | ispU; rth uppS yaeS; b0174 JW0169; | NP_414716.1;YP_488476.1; | 253 | escherichia-coli |
| P0A8F0 | Uracil phosphoribosyltransferase; EC 2.4.2.9; UMP pyrophosphorylase; UPRTase; | upp; uraP; b2498 JW2483; | NP_416993.2;YP_490726.1; | 208 | escherichia-coli |
| P0AGM7 | Uracil permease; Uracil transporter; | uraA; b2497 JW2482; | NP_416992.1;YP_490725.1; | 429 | escherichia-coli |
