- Carboxypeptidase N1 (CPN1)
- Carboxypeptidase N2 (CPN2)
- Carboxypeptidase O (CPO)
- Carboxypeptidase Z (CPZ)
- Serine Carboxypeptidase 1 (SCPEP1)
- Cytoplasmic Polyadenylation Element Binding Protein 2 (CPEB2)
- Cytoplasmic Polyadenylation Element Binding Protein 3 (CPEB3)
- Cytoplasmic Polyadenylation Element Binding Protein 4 (CPEB4)
- Cellular Retinoic Acid Binding Protein 2 (CRABP2)
- Complexin 2 (CPLX2)
- Complexin 3 (CPLX3)
- Complexin 4 (CPLX4)
- Cysteine And Glycine Rich Protein 1 (CSRP1)
- Cysteine And Glycine Rich Protein 2 (CSRP2)
- Cysteine And Glycine Rich Protein 3 (CSRP3)