1JR9:
reference: Three-dimensional structure of manganese superoxide dismutase from Bacillus halodenitrificans, a component of the so-called "green protein"., Liao J, Liu MY, Chang T, Li M, Le Gall J, Gui LL, Zhang JP, Jiang T, Liang DC, Chang WR, J Struct Biol. 2002 Sep;139(3):171-80. PMID: 12457847

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