| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q7K0Y1 | Ribosome biogenesis protein BOP1 homolog; | NULL | NP_611270.1; | 784 | fruit fly |
| Q9VVR2 | Protein aurora borealis; | bora; | NP_649048.1; | 539 | fruit fly |
| Q9VLD6 | Borealin; Aurora borealis protein; Borealin-related; | borr; | NP_609279.1;NP_723450.1; | 315 | fruit fly |
| P22815 | Protein bride of sevenless; | boss; | NP_542440.1; | 896 | fruit fly |
| Q24207 | Protein boule; | bol; | NP_001286992.1;NP_523989.1;NP_729456.1;NP_729457.1;NP_729458.1; | 228 | fruit fly |
| Q9VQU9 | Protein bowel; Brother of odd with entrails limited; | bowl; | NP_001245861.1;NP_001245862.1;NP_001245863.1;NP_476883.1;NP_722939.1;NP_722940.1;NP_722941.1; | 744 | fruit fly |
| Q9VNP5 | Putative ATP-dependent RNA helicase BoYb; EC 3.6.4.13; Brother of Yb; | BoYb; | NP_649430.1; | 1059 | fruit fly |
| Q8MQJ9 | Brain tumor protein; | brat; | NP_001286083.1;NP_476945.1;NP_599129.1;NP_995726.1; | 1037 | fruit fly |
| Q01295 | Broad-complex core protein isoforms 1/2/3/4/5; | br; Br-C; | NP_001188525.1;NP_001188526.1;NP_001188527.1;NP_001245462.1;NP_524759.2;NP_726749.2;NP_726750.1;NP_726754.1; | 727 | fruit fly |
| Q24206 | Broad-complex core protein isoform 6; | br; Br-C; | NP_001138144.1;NP_001259134.1;NP_726751.2;NP_726752.1;NP_726753.1; | 880 | fruit fly |
| Q9W157 | Breast cancer type 2 susceptibility protein homolog; dmbrca2; | Brca2; | NP_611925.2; | 971 | fruit fly |
| Q9VRP9 | E3 ubiquitin-protein ligase Bre1; EC 6.3.2.-; dBre1; | Bre1; | NP_001286950.1;NP_647989.2; | 1044 | fruit fly |
| P25439 | ATP-dependent helicase brm; EC 3.6.4.12; Homeotic gene regulator; Protein brahma; | brm; | NP_536745.4;NP_536746.1;NP_730088.1;NP_730089.1; | 1638 | fruit fly |
| Q24157 | Beta-1,3-galactosyltransferase brn; EC 2.4.1.62; Brainiac protein; Neurogenic secreted-signaling protein brn; | brn; | NP_476901.1; | 325 | fruit fly |
| P12428 | Protein brown; | bw; | NP_001286769.1;NP_523824.1; | 675 | fruit fly |
| Q24039 | Protein brother; | Bro; | NP_477066.2; | 213 | fruit fly |
| Q9VIL0 | Protein brunelleschi; NIK- and IKBKB-binding protein; | bru; | NP_610044.2; | 1320 | fruit fly |
| Q9VZE6 | Ribosome biogenesis protein BRX1 homolog; Brix domain-containing protein 2 homolog; | NULL | NP_001033989.1; | 359 | fruit fly |
| Q9V3X4 | Seipin; | Seipin; | NP_570012.1; | 370 | fruit fly |
| P11929 | Blastoderm-specific protein 25D; | Bsg25D; | NP_476916.4; | 741 | fruit fly |
