| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P13000 | ATP-dependent dethiobiotin synthetase BioD 1; EC 6.3.3.3; DTB synthetase 1; DTBS 1; Dethiobiotin synthase; | bioD1; b0778 JW0761; | NP_415299.1;YP_489051.1; | 225 | escherichia-coli |
| P0A6E9 | ATP-dependent dethiobiotin synthetase BioD 2; EC 6.3.3.3; DTB synthetase 2; DTBS 2; Dethiobiotin synthase 2; | bioD2; ynfK; b1593 JW5264; | NP_416110.4;YP_489856.1; | 231 | escherichia-coli |
| P12998 | 8-amino-7-oxononanoate synthase; AONS; EC 2.3.1.47; 7-keto-8-amino-pelargonic acid synthase; 7-KAP synthase; KAPA synthase; 8-amino-7-ketopelargonate synthase; | bioF; b0776 JW0759; | NP_415297.1;YP_489049.1; | 384 | escherichia-coli |
| P13001 | Pimeloyl-[acyl-carrier protein] methyl ester esterase; EC 3.1.1.85; Biotin synthesis protein BioH; Carboxylesterase BioH; | bioH; bioB; b3412 JW3375; | NP_417871.1;YP_492020.1; | 256 | escherichia-coli |
| P06709 | Bifunctional ligase/repressor BirA; Biotin operon repressor; Biotin--[acetyl-CoA-carboxylase] ligase; EC 6.3.4.15; Biotin--protein ligase; Biotin-[acetyl-CoA carboxylase] synthetase; | birA; bioR dhbB; b3973 JW3941; | NP_418404.1;YP_491483.1; | 321 | escherichia-coli |
| P20099 | Biotin sulfoxide reductase; BDS reductase; BSO reductase; EC 1.-.-.-; L-methionine-(S)-sulfoxide reductase; Met-S-SO reductase; EC 1.8.4.13; | bisC; b3551 JW5940; | NP_418007.3;YP_491885.1; | 777 | escherichia-coli |
| P0A901 | Outer membrane lipoprotein Blc; | blc; yjeL; b4149 JW4110; | NP_418573.1;YP_492294.1; | 177 | escherichia-coli |
| P56976 | Divisome-associated membrane protein Blr; Beta-lactam resistance protein; | blr; b4409 JW5963; | YP_025303.1;YP_489888.1; | 41 | escherichia-coli |
| P75989 | HTH-type transcriptional repressor BluR; | bluR; ycgE; b1162 JW1149; | NP_415680.1;YP_489429.1; | 243 | escherichia-coli |
| P75990 | Blue light- and temperature-regulated antirepressor BluF; Blrp; | bluF; blrp ycgF; b1163 JW1150; | NP_415681.1;YP_489430.1; | 403 | escherichia-coli |
| P0ABE2 | Protein BolA; | bolA; b0435 JW5060; | NP_414969.4;YP_488727.1; | 105 | escherichia-coli |
| P77330 | Lipoprotein bor homolog from lambdoid prophage DLP12; | borD; ybcU; b0557 JW0546; | NP_415089.1;YP_488845.1; | 97 | escherichia-coli |
| P0AD99 | Branched-chain amino acid transport system 2 carrier protein; LIV-II; | brnQ; b0401 JW0391; | NP_414935.1;YP_488693.1; | 439 | escherichia-coli |
| P39297 | Lipoprotein BsmA; Biofilm stress and motility protein; | bsmA; yjfO; b4189 JW5743; | NP_418610.4;YP_492331.1; | 109 | escherichia-coli |
| P0AAY1 | Biofilm regulator BssR; | bssR; yliH; b0836 JW0820; | NP_415357.1;YP_489109.1; | 127 | escherichia-coli |
| P0AB33 | Biofilm regulator BssS; | bssS; yceP; b1060 JW5152; | NP_415578.3;YP_489328.1; | 84 | escherichia-coli |
| P06129 | Vitamin B12 transporter BtuB; Cobalamin receptor; Outer membrane cobalamin translocator; | btuB; bfe cer dcrC; b3966 JW3938; | NP_418401.1;YP_491486.1; | 614 | escherichia-coli |
| P06609 | Vitamin B12 import system permease protein BtuC; | btuC; b1711 JW1701; | NP_416226.1;YP_489973.1; | 326 | escherichia-coli |
| P06611 | Vitamin B12 import ATP-binding protein BtuD; EC 3.6.3.33; Vitamin B12-transporting ATPase; | btuD; b1709 JW1699; | NP_416224.1;YP_489971.1; | 249 | escherichia-coli |
| P37028 | Vitamin B12-binding protein; | btuF; yadT; b0158 JW0154; | NP_414700.1;YP_488461.1; | 266 | escherichia-coli |
