1Z9K:
reference: Design of a Redox-Linked Active Metal Site: Manganese Bound to Bacterial Reaction Centers at a Site Resembling That of Photosystem II(,)., Thielges M, Uyeda G, Camara-Artigas A, Kalman L, Williams JC, Allen JP, Biochemistry 2005 May 24;44(20):7389-94. PMID: 15895982

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