{"0": "SLC superfamily of solute carriers", "1": "SLC25 family of mitochondrial transporters", "2": "Reductase", "3": "Oxidoreductase", "4": "Receptor", "5": "Mitochondrial nucleotide transporter subfamily", "6": "Calcium-binding protein", "7": "Transporter", "8": "Metalloprotease", "9": "Intracellular calcium-sensing protein", "10": "Calmodulin", "11": "Oxidase", "12": "Protease", "13": "Phosphatase", "14": "Microtubule family cytoskeletal protein", "15": "F-type and V-type ATPases", "16": "Translation initiation factor", "17": "F-type ATPase", "18": "Translation factor", "19": "Membrane trafficking regulatory protein", "20": "mRNA splicing factor", "21": "Nuclease", "22": "Hydrolase", "23": "Dehydrogenase"}