5Y9W:
reference: Structural basis for receptor recognition of pollen tube attraction peptides., Zhang X, Liu W, Nagae TT, Takeuchi H, Zhang H, Han Z, Higashiyama T, Chai J, Nat Commun. 2017 Nov 6;8(1):1331. doi: 10.1038/s41467-017-01323-8. PMID: 29109411

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