5YPY:
reference: Crystallographic Structures of IlvN.Val/Ile Complexes: Conformational Selectivity for Feedback Inhibition of Aceto Hydroxy Acid Synthases., Bansal A, Karanth NM, Demeler B, Schindelin H, Sarma SP, Biochemistry. 2019 Mar 29. doi: 10.1021/acs.biochem.9b00050. PMID: 30887800

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