{"0": "Ribosomal protein", "1": "Protease", "2": "Receptor", "3": "Serine protease", "4": "Cysteine protease", "5": "SLC superfamily of solute carriers", "6": "Actin binding motor protein", "7": "RNA helicase", "8": "SLC25 family of mitochondrial transporters", "9": "Hydrolase", "10": "Oxidoreductase", "11": "Polymerase", "12": "Tubulin", "13": "Nucleotidyltransferase", "14": "DNA-directed RNA polymerase", "15": "CMGC group", "16": "C2H2 zinc finger transcription factor", "17": "KRAB box transcription factor", "18": "Vesicle coat protein"}