- alpha 1 Adrenergic Receptor
- alpha 2 Antiplasmin
- alpha 2 Macroglobulin
- alpha Actinin 4
- alpha Adaptin
- alpha Adducin
- alpha Defensin 1
- alpha Fetoprotein
- alpha KGDHC
- alpha Taxilin
- alpha Tubulin
- alpha-1-Inhibitor 3
- Alpha-amylase 1
- alpha-Mannosidase II
- ALPK1
- ALPK2
- ALPK3
- ALPL
- ALPPL2
- ALS2
- ALS2CL
- ALS2CR11
- ALS2CR12
- ALT
- ALX1
- ALX3
- ALX4
- AMAC1
- AMAC1L2
- AMACR
- AMBN
- AMBP
- AMBRA1
- AMD1
- Amd2
- AMD2
- AMDHD1
- AMDHD2
- Amelotin
- AMELX
- AMELY
- AMER2
- AMER3
- AMFR
- AMH
- AMHR2
- AMIGO1
- AMIGO2
- AMIGO3
- Aminoacylase 1
- Aminoacylase 3
- Aminomethyltransferase
- AMMECR1
- AMMECR1-Like
- AMN
- AMN1
- AMOTL1
- AMOTL2
- AMPD1
- AMPD2
- AMPD3
- Amphiphysin
- Amphiregulin
- AMY1A
- AMY1C
- AMY2
- AMY2A
- AMY2B
- Amylin/DAP
- AMZ1
- AMZ2
- ANAPC10
- ANAPC11
- ANAPC13
- ANAPC15
- ANAPC16
- ANAPC2
- ANAPC4
- ANAPC5
- ANAPC7
- Ancient Ubiquitous Protein 1
- Andpro
- Androgen Receptor
- Androglobin
- Aneurysm, Intracranial Berry 3
- ANG
- ANG2
- ANGEL1
- ANGEL2
- Angiomotin
- Angiopoietin 1
- Angiopoietin 2
- Angiopoietin 4
- Angiotensin I Converting Enzyme 1
- Angiotensin II Type 2 Receptor
- Angiotensin II Type-1 Receptor
- ANGPTL1
- ANGPTL2
- ANGPTL3
- ANGPTL4