5MLR:
reference: A multisubstrate reductase from Plantago major: structure-function in the short chain reductase superfamily., Fellows R, Russo CM, Silva CS, Lee SG, Jez JM, Chisholm JD, Zubieta C, Nanao MH, Sci Rep. 2018 Oct 4;8(1):14796. doi: 10.1038/s41598-018-32967-1. PMID: 30287897

This OCA Structure page
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