- AAA ATPases
- Actins
- Acyl-CoA dehydrogenase family
- Acyl-CoA synthetase family
- ADAM metallopeptidases with thrombospondin type 1 motif
- Adenosine deaminase family
- Adenosine deaminases acting on RNA
- Adhesion G protein-coupled receptors, subfamily G
- ADHD
- Adaptor protein complexes
- Adaptor related protein complex 1
- Adaptor related protein complex 3
- Adaptor related protein complex 4
- A-kinase anchoring proteins
- Alkaline phosphatases
- Aldehyde dehydrogenases
- Aminoacyl tRNA synthetases, Class II
- Angiotensin receptors
- Ankyrin repeat domain containing
- AF4/FMR2 family
- AP部位
- AFP
- AMH
- Alpha catenins
- αヘリックス
- Alpha-1,3-glucosyltransferases
- AAAタンパク質ファミリー
- AllianceGenome
- APC membrane recruitment proteins
- Aquaporins
- ARF GTPase family
- Arginine vasopressin and oxytocin receptors
- Armadillo like helical domain containing
- Armadillo repeat containing
- ase
- ATPase
- ATP binding cassette subfamily A
- ATPase copper transporting
- ATPase F1/V1 alpha/A and beta/B subunit family
- ATP binding cassette subfamily B
- ATP binding cassette subfamily C
- ATP binding cassette subfamily D
- Atlastins
- ATPase orphan transporters
- ATPase Na+/K+ transporting subunits
- ATPase phospholipid transporting
- AT-rich interaction domain containing
- アルゴノート
- Axonemal dynein assembly factors