- Carcinoembryonic Antigen Related Cell Adhesion Molecule 4 (CEACAM4)
- Cat Eye Syndrome Chromosome Region, Candidate 5 (CECR5)
- Cat Eye Syndrome Chromosome Region, Candidate 6 (CECR6)
- Cysteine Rich Hydrophobic Domain Protein 1 (CHIC1)
- Chloride Channel Accessory 4 (CLCA4)
- Claudin 10 (CLDN10)
- Claudin 15 (CLDN15)
- Claudin 17 (CLDN17)
- Claudin 20 (CLDN20)
- Claudin 22 (CLDN22)
- Claudin 6 (CLDN6)
- Claudin 9 (CLDN9)
- C-Type Lectin Domain Family 3, Member A (CLEC3A)
- Caseinolytic Peptidase X (CLPX)
- Clusterin Like Protein 1 (CLUL1)