- Hydrogen Ion/Peptide Transporter 2 (HPEPT2)
- Solute Carrier Family 16, Member 1 (SLC16A1)
- Solute Carrier Family 16, Member 2 (SLC16A2)
- Solute Carrier Family 16, Member 3 (SLC16A3)
- Solute Carrier Family 16, Member 4 (SLC16A4)
- Thiamine Transporter Protein 1 (THTR1)
- Thiamine Transporter Protein 2 (THTR2)
- Solute Carrier Family 24, Member 5 (SLC24A5)
- Organic Cation Transporter 1 (OCT1)
- Organic Cation Transporter 2 (OCT2)
- Organic Cation/Ergothioneine Transporter (OCTN1)
- Organic Cation/Carnitine Transporter (OCTN2)
- Organic Anion Transporter 1 (OAT1)
- Organic Anion Transporter 2 (OAT2)
- Organic Anion Transporter 3 (OAT3)