3K3K:
reference: Structural mechanism of abscisic acid binding and signaling by dimeric PYR1., Nishimura N, Hitomi K, Arvai AS, Rambo RP, Hitomi C, Cutler SR, Schroeder JI, Getzoff ED, Science. 2009 Dec 4;326(5958):1373-9. Epub 2009 Oct 22. PMID: 19933100

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