4OV4:
reference: Subdomain II of alpha-isopropylmalate synthase is essential for activity: inferring a mechanism of feedback inhibition., Zhang Z, Wu J, Lin W, Wang J, Yan H, Zhao W, Ma J, Ding J, Zhang P, Zhao GP, J Biol Chem. 2014 Oct 3;289(40):27966-78. doi: 10.1074/jbc.M114.559716. Epub 2014, Aug 15. PMID: 25128527

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