2CYM:
reference: Effects of amino acid substitution on three-dimensional structure: an X-ray analysis of cytochrome c3 from Desulfovibrio vulgaris Hildenborough at 2 A resolution., Morimoto Y, Tani T, Okumura H, Higuchi Y, Yasuoka N, J Biochem (Tokyo) 1991 Oct;110(4):532-40. PMID: 1663945

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