| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P0ACJ5 | Uncharacterized HTH-type transcriptional regulator YbaO; | ybaO; b0447 JW0437; | NP_414981.4;YP_488739.1; | 152 | escherichia-coli |
| P0A9T8 | Uncharacterized ABC transporter ATP-binding protein YbbA; | ybbA; b0495 JW0484; | NP_415028.1;YP_488786.1; | 228 | escherichia-coli |
| P33669 | Putative uncharacterized protein YbbD; | ybbD; b0501 JW0489; | YP_488791.1; | 86 | escherichia-coli |
| P33668 | Uncharacterized protein YbbC; | ybbC; b0498 JW0487; | NP_415031.1;YP_488789.1; | 122 | escherichia-coli |
| P0AFP4 | Uncharacterized oxidoreductase YbbO; EC 1.-.-.-; | ybbO; b0493 JW0482; | NP_415026.1;YP_488784.1; | 269 | escherichia-coli |
| P77395 | Uncharacterized protein YbbN; | ybbN; b0492 JW5067; | NP_415025.4;YP_488783.1; | 284 | escherichia-coli |
| P77504 | Uncharacterized ABC transporter permease YbbP; | ybbP; b0496 JW0485; | NP_415029.1;YP_488787.1; | 804 | escherichia-coli |
| P77328 | Putative purine permease YbbY; | ybbY; glxB4; b0513 JW0501; | NP_415046.4;YP_488803.1; | 433 | escherichia-coli |
| P37325 | Uncharacterized protein YbcH; | ybcH; b0567 JW0556; | NP_415099.1;YP_488854.1; | 296 | escherichia-coli |
| P0AAS3 | Inner membrane protein YbbJ; | ybbJ; b0488 JW5065; | NP_415021.2;YP_488779.1; | 152 | escherichia-coli |
| P0AAS7 | Uncharacterized protein YbcJ; | ybcJ; b0528 JW5070; | NP_415061.2;YP_488817.1; | 70 | escherichia-coli |
| P45570 | Inner membrane protein YbcI; | ybcI; b0527 JW0516; | NP_415060.1;YP_488816.1; | 173 | escherichia-coli |
| P77698 | Uncharacterized protein YbcK; | ybcK; b0544 JW0532; | NP_415076.1;YP_488831.1; | 508 | escherichia-coli |
| P75711 | Uncharacterized protein YbbV; | ybbV; b0510 JW0498; | YP_488800.1; | 92 | escherichia-coli |
| P77368 | UPF0098 protein YbcL; | ybcL; b0545 JW0533; | NP_415077.1;YP_488832.1; | 183 | escherichia-coli |
| P77634 | Uncharacterized HTH-type transcriptional regulator YbcM; | ybcM; b0546 JW0534; | NP_415078.1;YP_488833.1; | 265 | escherichia-coli |
| P68661 | Uncharacterized protein YbcO; | ybcO; b0549 JW0537; | NP_415081.1;YP_488836.1; | 96 | escherichia-coli |
| P64435 | Uncharacterized protein YbcW; | ybcW; b0559 JW0548; | NP_415091.1;YP_488847.1; | 68 | escherichia-coli |
| Q47269 | Uncharacterized protein YbcN; | ybcN; b0547 JW0535; | NP_415079.1;YP_488834.1; | 151 | escherichia-coli |
| P77460 | Putative uncharacterized protein YbcY; | ybcY; b0562 JW0551; | YP_488849.1; | 194 | escherichia-coli |
