5V00:
reference: Crystal structure of a bicupin protein HutD involved in histidine utilization in Pseudomonas., Gerth ML, Liu Y, Jiao W, Zhang XX, Baker EN, Lott JS, Rainey PB, Johnston JM, Proteins. 2017 Apr 6. doi: 10.1002/prot.25303. PMID: 28383128

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