{"0": "SLC superfamily of solute carriers", "1": "SLC25 family of mitochondrial transporters", "2": "Receptor", "3": "Signaling", "4": "Reductase", "5": "Protease", "6": "Metalloprotease", "7": "Methyltransferase", "8": "Cysteine protease", "9": "Transporter", "10": "Serine protease", "11": "Oxidase", "12": "G-protein", "13": "mRNA splicing factor", "14": "Hydrolase", "15": "Zinc finger transcription factor", "16": "Oxidoreductase", "17": "mRNA processing factor"}