- B
- Bacterial top IV
- BRF1
- Bacterial adhesin
- Bacterial proteins
- Bacterial RNA
- BRIP1
- B3GALNT1
- BZLF1
- BTN3A3
- BMPG
- BTC
- BDCA2
- BDNF
- BCL2
- BIRA
- BCAM
- BSG
- BTN
- BTN1A1
- BTN2A1
- BTN2A2
- BTN2A3
- BTN3A1
- BTN3A2
- BAGE
- BLM
- BSEP
- BAMBI
- BECN1
- BEX3
- BGN
- BET
- BRD1
- BRD2
- BRD3
- BRD4
- BRD7
- BRD9
- BRDT
- BST2
- BICP0
- BTG1
- BLyS
- BTG2
- BTG3
- BTNL3
- BST1
- Beta-glucosidase
- Bile acid
- BRAF
- BCAT
- BCAT1
- BCAT2
- B4GALT1
- BIN1
- B4GALNT2
- BCR
- BEST
- BEST1
- BAG2
- BGLAP
- BAG3
- BNSP
- BARF1
- BTLA
- BBOX1
- BLTR2
- BMPR
- BIP
- BMPR1A
- BMPR2
- BCHE
- BPI
- BDKRB1
- BDKRB2
- Bombesin receptor
- BB1
- BB2
- BETVI
- BB3
- BACH1
- BVR
- BRCA1
- BRCA2
- BoNT/B
- BoNT/C
- BoNT/D
- BoNT/E
- BUB1
- B3GALT4
- BCL3
- BCAN
- BCMA
- BCL9
- BNP
- BCL11B
- B3GAT1
- BCL6
- BCL
- BCL11A