- Polyribonucleotide Nucleotidyltransferase 1 (PNPT1)
- Tubulin Gamma Complex Associated protein 4 (TUBgCP4)
- Tubulin Gamma Complex Associated protein 5 (TUBgCP5)
- Tubulin Gamma Complex Associated protein 6 (TUBgCP6)
- Zona Pellucida Binding Protein 2 (ZPBP2)
- Zona Pellucida Binding Protein (ZPBP)
- Zinc And Ring Finger Protein 1 (ZNRF1)
- Zinc And Ring Finger Protein 2 (ZNRF2)
- Zinc And Ring Finger Protein 3 (ZNRF3)
- Zinc And Ring Finger Protein 4 (ZNRF4)
- Zonadhesin (ZAN)
- Zygote Arrest Protein 1 (ZAR1)
- Xenotropic And Polytropic Retrovirus Receptor 1 (XPR1)
- X-Prolyl Aminopeptidase 2, Membrane Bound (XPNPEP2)
- X-Prolyl Aminopeptidase 1, Soluble (XPNPEP1)
