| 6YAC: reference: The structure of a triple complex of plant photosystem I with ferredoxin and plastocyanin., Caspy I, Borovikova-Sheinker A, Klaiman D, Shkolnisky Y, Nelson N, Nat Plants. 2020 Oct;6(10):1300-1305. doi: 10.1038/s41477-020-00779-9. Epub 2020 , Oct 5. PMID: 33020607 |
This OCA 
Structure page
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(documentation).