3A0B: Crystal Structure Of Br-Substituted Photosystem II Complex
reference: Location of chloride and its possible functions in oxygen-evolving photosystem II revealed by X-ray crystallography., Kawakami K, Umena Y, Kamiya N, Shen JR, Proc Natl Acad Sci U S A. 2009 May 26;106(21):8567-72. Epub 2009 May 11. PMID: 19433803

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