- Cyclin G Associated Kinase (GAK)
- Cyclin H (CCNH)
- Cyclin G (CCNG)
- Cyclin G2 (CCNG2)
- Cytochrome C Oxidase Subunit I (COX1)
- Cytochrome C Oxidase Subunit II (COX2)
- Cytochrome C Oxidase Subunit III (COX3)
- Cytochrome C Oxidase Subunit IV Isoform 1 (COX4I1)
- Cytochrome C Oxidase Subunit IV Isoform 2 (COX4I2)
- Cytochrome C Oxidase Subunit Va (COX5a)
- Cytochrome C Oxidase Subunit Vb (COX5b)
- Cytochrome C Oxidase Subunit VIa (COX6a)
- Cytochrome C Oxidase Subunit VIb (COX6b)
- Cytochrome b5, Form A (CYB5A)
- Cytochrome b5, Form B (CYB5B)
