Task: Text Categorization
Input (English): It is used in pain sensitization as a signaling molecule that binds to purinergic receptors. It is also potent inhibitor of both pyruvate kinase and phosphofructokinase. In muscle cells it is often indirectly transported throughout the cell via creatine, which can accept or donate a phosphate group and form this organic molecule. The enzyme adenylate cyclase converts it into the second messenger cyclic AMP, but this molecule is most famously associated with the metabolic processes of photosynthesis, glycolysis, and oxidative phosphorylation. FTP, name this nucleotide used by most cells as the "energy currency. "
Output (English): Science