1HJ6:
reference: Structural basis for a change in substrate specificity: crystal structure of S113E isocitrate dehydrogenase in a complex with isopropylmalate, Mg2+, and NADP., Doyle SA, Beernink PT, Koshland DE Jr, Biochemistry 2001 Apr 10;40(14):4234-41. PMID: 11284679

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