1R0Q:
reference: Cytochrome rC552, formed during expression of the truncated, Thermus thermophilus cytochrome c552 gene in the cytoplasm of Escherichia coli, reacts spontaneously to form protein-bound 2-formyl-4-vinyl (Spirographis) heme., Fee JA, Todaro TR, Luna E, Sanders D, Hunsicker-Wang LM, Patel KM, Bren KL, Gomez-Moran E, Hill MG, Ai J, Loehr TM, Oertling WA, Williams PA, Stout CD, McRee D, Pastuszyn A, Biochemistry. 2004 Sep 28;43(38):12162-76. PMID: 15379555

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