1FJ0:
reference: Cleavage of the iron-methionine bond in c-type cytochromes: crystal structure of oxidized and reduced cytochrome c(2) from Rhodopseudomonas palustris and its ammonia complex., Geremia S, Garau G, Vaccari L, Sgarra R, Viezzoli MS, Calligaris M, Randaccio L, Protein Sci 2002 Jan;11(1):6-17. PMID: 11742117

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