- Coronin 1B (CORO1B)
- Coronin 1C (CORO1C)
- Coronin 2A (CORO2A)
- Coronin 2B (CORO2B)
- Coenzyme Q9 Homolog (COQ9)
- Coenzyme Q7 Homolog, Ubiquinone (COQ7)
- Coenzyme Q2 Homolog, Prenyltransferase (COQ2)
- Coenzyme Q3 Homolog, Methyltransferase (COQ3)
- Coenzyme Q4 Homolog (COQ4)
- Catechol-O-Methyltransferase (COMT)
- Cytoplasmic Linker Associated Protein 1 (CLASP1)
- Citron (CIT)
- Choline Dehydrogenase (CHDH)
- Cytoplasmic Linker Associated Protein 2 (CLASP2)
- Cartilage Intermediate Layer Protein 2 (CILP2)