{"0": "Receptor", "1": "Microtubule family cytoskeletal protein", "2": "Tubulin", "3": "SLC superfamily of solute carriers", "4": "SLC25 family of mitochondrial transporters", "5": "Membrane trafficking regulatory protein", "6": "Oxidase", "7": "Phosphatase", "8": "Translation factor", "9": "Metalloprotease", "10": "Cysteine protease", "11": "Serine protease", "12": "Cellular structure", "13": "Hydrolase", "14": "Protease", "15": "Epigenetic regulator", "16": "Oxidoreductase", "17": "Helicase", "18": "Transporter"}