| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P0AEX7 | High-affinity branched-chain amino acid transport system permease protein LivH; LIV-I protein H; | livH; b3457 JW3422; | NP_417914.1;YP_491977.1; | 308 | escherichia-coli |
| P0AD96 | Leu/Ile/Val-binding protein; LIV-BP; | livJ; b3460 JW3425; | YP_026223.1;YP_491974.1; | 367 | escherichia-coli |
| P04816 | Leucine-specific-binding protein; L-BP; LS-BP; | livK; b3458 JW3423; | NP_417915.1;YP_491976.1; | 369 | escherichia-coli |
| P22729 | High-affinity branched-chain amino acid transport system permease protein LivM; LIV-I protein M; | livM; b3456 JW3421; | NP_417913.1;YP_491978.1; | 425 | escherichia-coli |
| P33232 | L-lactate dehydrogenase; EC 1.1.-.-; | lldD; lctD; b3605 JW3580; | NP_418062.1;YP_491828.1; | 396 | escherichia-coli |
| P33231 | L-lactate permease; | lldP; lctP; b3603 JW3578; | NP_418060.1;YP_491830.1; | 551 | escherichia-coli |
| P0ACL7 | Putative L-lactate dehydrogenase operon regulatory protein; | lldR; lctR; b3604 JW3579; | NP_418061.1;YP_491829.1; | 258 | escherichia-coli |
| P23930 | Apolipoprotein N-acyltransferase; ALP N-acyltransferase; EC 2.3.1.-; Copper homeostasis protein CutE; | lnt; cutE; b0657 JW0654; | NP_415190.1;YP_488948.1; | 512 | escherichia-coli |
| P25894 | Metalloprotease LoiP; EC 3.4.24.-; | loiP; yggG; b2936 JW2903; | NP_417411.2;YP_491135.1; | 252 | escherichia-coli |
| P61316 | Outer-membrane lipoprotein carrier protein; P20; | lolA; lplA yzzV; b0891 JW0874; | NP_415411.2;YP_489163.1; | 203 | escherichia-coli |
| P61320 | Outer-membrane lipoprotein LolB; | lolB; hemM ychC; b1209 JW1200; | NP_415727.1;YP_489476.1; | 207 | escherichia-coli |
| P0ADC3 | Lipoprotein-releasing system transmembrane protein LolC; | lolC; ycfU; b1116 JW5161; | NP_415634.1;YP_489384.1; | 399 | escherichia-coli |
| P75957 | Lipoprotein-releasing system ATP-binding protein LolD; EC 3.6.3.-; | lolD; ycfV; b1117 JW5162; | NP_415635.4;YP_489385.1; | 233 | escherichia-coli |
| P75958 | Lipoprotein-releasing system transmembrane protein LolE; | lolE; ycfW; b1118 JW1104; | NP_415636.1;YP_489386.1; | 414 | escherichia-coli |
| P77184 | Putative protein LomR; | lomR; b4570 JW5884/JW5904; | NULL | 164 | escherichia-coli |
| P75867 | Putative Lon protease homolog; EC 3.4.21.-; ATP-dependent protease La homolog; | ycbZ; b0955 JW0938; | NP_415475.1;YP_489227.1; | 586 | escherichia-coli |
| P0A9M0 | Lon protease; EC 3.4.21.53; ATP-dependent protease La; | lon; capR deg lopA muc; b0439 JW0429; | NP_414973.1;YP_488731.1; | 784 | escherichia-coli |
| P0ADF0 | Putative fruR/shl operon leader peptide; | fruL; b0079; | NULL | 28 | escherichia-coli |
| P60995 | His operon leader peptide; His operon attenuator peptide; | hisL; b2018 JW2000; | NP_416522.1; | 16 | escherichia-coli |
| A8DYP9 | Fur leader peptide; | uof; b4637; | YP_001491546.1; | 28 | escherichia-coli |
