4JJ0:
reference: Structural insight into magnetochrome-mediated magnetite biomineralization., Siponen MI, Legrand P, Widdrat M, Jones SR, Zhang WJ, Chang MC, Faivre D, Arnoux P, Pignol D, Nature. 2013 Oct 31;502(7473):681-4. doi: 10.1038/nature12573. Epub 2013 Oct 6. PMID: 24097349

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