3K90:
reference: The abscisic acid receptor PYR1 in complex with abscisic acid., Santiago J, Dupeux F, Round A, Antoni R, Park SY, Jamin M, Cutler SR, Rodriguez PL, Marquez JA, Nature. 2009 Dec 3;462(7273):665-8. Epub 2009 Nov 8. PMID: 19898494

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