5TPR:
reference: Evolution and Distribution of C7-Cyclitol Synthases in Prokaryotes and Eukaryotes., Osborn AR, Kean KM, Alseud KM, Almabruk KH, Asamizu S, Lee JA, Karplus PA, Mahmud T, ACS Chem Biol. 2017 Feb 17. doi: 10.1021/acschembio.7b00066. PMID: 28182402

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