- Phosphatidylserine Synthase 2 (PTDSS2)
- Phosphatidylserine Synthase 1 (PTDSS1)
- Proline Serine Threonine Phosphatase Interacting Protein 1 (PSTPIP1)
- Paraspeckle Component 1 (PSPC1)
- Protein Serine Kinase H1 (PSKH1)
- Pregnancy Specific Beta-1-Glycoprotein 10 (PSG10)
- Pregnancy Specific Beta-1-Glycoprotein 11 (PSG11)
- Pregnancy Specific Beta-1-Glycoprotein 2 (PSG2)
- Pregnancy Specific Beta-1-Glycoprotein 3 (PSG3)
- Pregnancy Specific Beta-1-Glycoprotein 4 (PSG4)
- Pregnancy Specific Beta-1-Glycoprotein 5 (PSG5)
- Pregnancy Specific Beta-1-Glycoprotein 6 (PSG6)
- Pregnancy Specific Beta-1-Glycoprotein 7 (PSG7)
- Pregnancy Specific Beta-1-Glycoprotein 8 (PSG8)
- Pregnancy Specific Beta-1-Glycoprotein 9 (PSG9)