- Sema4a
- SEMA4B
- SEMA4C
- SEMA4D/CD100
- SEMA4F
- SEMA4G
- SEMA5A
- SEMA5B
- SEMA6A
- SEMA6B
- SEMA6D
- SEMA7A
- Semaphorin 6C
- SEMG1
- SEMG2
- SENP1
- SENP2
- SENP3
- SENP5
- SENP6
- SENP7
- SENP8
- Sep 15
- Separase
- SEPHS1
- SEPHS2
- SEPN1
- SEPSECS
- Septin 1
- Septin 10
- Septin 11
- Septin 12
- Septin 14
- Septin 2
- Septin 3
- Septin 4
- Septin 5
- Septin 6
- Septin 7
- Septin 8
- Septin 9
- SERAC1
- SERBP1
- SERF1A
- SERF2
- SERGEF
- SERHL
- SERHL2
- SERINC1
- SERINC2
- SERINC3
- SERINC4
- SERINC5
- serine Dehydratase
- Serotonin Receptor 1A
- Serotonin Receptor 1E
- Serotonin Receptor 2B
- Serotonin Receptor 3A
- Serotonin Receptor 3B
- Serotonin Receptor 4
- Serotonin Receptor 5A
- Serotonin Receptor 6
- SERP1
- SERP2
- SERPINA1
- SERPINA10
- SERPINA11
- SERPINA12
- SERPINA13
- SERPINA1B
- SERPINA1C
- Serpina1d
- SERPINA1E
- SERPINA1F
- SERPINA2P
- SERPINA3
- Serpina3a
- Serpina3b
- SERPINA3C
- Serpina3f
- SERPINA3K
- SERPINA3M
- SERPINA3N
- SERPINA4
- SERPINA5
- SERPINA6
- SERPINA7
- SERPINA9
- SERPINB1
- SERPINB10
- SERPINB11
- SERPINB12
- SERPINB13
- SERPINB1B
- SERPINB1C
- SERPINB2
- SERPINB3
- SERPINB3C
- SERPINB4
- SERPINB5