3AEU:
reference: X-ray crystal structure of the light-independent protochlorophyllide reductase., Muraki N, Nomata J, Ebata K, Mizoguchi T, Shiba T, Tamiaki H, Kurisu G, Fujita Y, Nature. 2010 May 6;465(7294):110-4. PMID: 20400946

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