| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P31697 | Chaperone protein FimC; | fimC; b4316 JW4279; | NP_418736.3;YP_492450.1; | 241 | escherichia-coli |
| P0ADH7 | Type 1 fimbriae regulatory protein FimE; | fimE; b4313 JW4276; | NP_418733.1;YP_492447.1; | 198 | escherichia-coli |
| P08189 | Protein FimF; | fimF; b4318 JW4281; | NP_418738.1;YP_009080096.1;YP_492452.1; | 176 | escherichia-coli |
| P08191 | Protein FimH; | fimH; b4320 JW4283; | NP_418740.1;YP_492454.1; | 300 | escherichia-coli |
| P08190 | Protein FimG; | fimG; b4319 JW4282; | NP_418739.1;YP_009080097.1;YP_492453.1; | 167 | escherichia-coli |
| P0AEL8 | Fimbriae Z protein; | fimZ; ybcA; b0535 JW5073; | NP_415068.1;YP_488824.1; | 210 | escherichia-coli |
| P39264 | Fimbrin-like protein FimI; | fimI; b4315 JW5779; | NP_418735.2;YP_492449.1; | 179 | escherichia-coli |
| P22707 | Fertility inhibition protein; Conjugal transfer repressor; | finO; | NULL | 186 | escherichia-coli |
| P0A6R3 | DNA-binding protein Fis; Factor-for-inversion stimulation protein; Hin recombinational enhancer-binding protein; | fis; b3261 JW3229; | NP_417727.1;YP_491443.1; | 98 | escherichia-coli |
| P75780 | Catecholate siderophore receptor Fiu; Ferric iron uptake protein; TonB-dependent receptor Fiu; | fiu; ybiL; b0805 JW0790; | NP_415326.1;YP_489078.1; | 760 | escherichia-coli |
| P60566 | Protein FixA; | fixA; yaaQ; b0041 JW0040; | NP_414583.2;YP_488347.1; | 256 | escherichia-coli |
| P31574 | Protein FixB; | fixB; yaaR; b0042 JW0041; | NP_414584.1;YP_488348.1; | 313 | escherichia-coli |
| P68644 | Protein FixC; | fixC; yaaS; b0043 JW0042; | NP_414585.1;YP_488349.1; | 428 | escherichia-coli |
| P68646 | Ferredoxin-like protein FixX; | fixX; yaaT; b0044 JW0043; | NP_414586.1;YP_488350.1; | 95 | escherichia-coli |
| P0A9L3 | FKBP-type 22 kDa peptidyl-prolyl cis-trans isomerase; FKBP22; PPIase; EC 5.2.1.8; Rotamase; | fklB; ytfC; b4207 JW5746; | NP_418628.4;YP_492349.1; | 206 | escherichia-coli |
| P45523 | FKBP-type peptidyl-prolyl cis-trans isomerase FkpA; PPIase; EC 5.2.1.8; Rotamase; | fkpA; yzzS; b3347 JW3309; | NP_417806.1;YP_492085.1; | 270 | escherichia-coli |
| P0AEM0 | FKBP-type 16 kDa peptidyl-prolyl cis-trans isomerase; PPIase; EC 5.2.1.8; Rotamase; | fkpB; slpA yaaD; b0028 JW0026; | NP_414569.1;YP_488334.1; | 149 | escherichia-coli |
| P61949 | Flavodoxin-1; | fldA; b0684 JW0671; | NP_415210.1;YP_488964.1; | 176 | escherichia-coli |
| P0ABY4 | Flavodoxin-2; | fldB; b2895 JW2863; | NP_417371.1;YP_491096.1; | 173 | escherichia-coli |
| P75933 | Flagella basal body P-ring formation protein FlgA; | flgA; b1072 JW1059; | NP_415590.1;YP_489340.1; | 219 | escherichia-coli |
