5DQW:
reference: Structural and biochemical characterization of bacterial YpgQ protein reveals a metal-dependent nucleotide pyrophosphohydrolase., Jeon YJ, Park SC, Song WS, Kim OH, Oh BC, Yoon SI, J Struct Biol. 2016 Apr 7. pii: S1047-8477(16)30061-2. doi:, 10.1016/j.jsb.2016.04.002. PMID: 27062940

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