3PSW:
reference: Revisiting the mechanism of the triosephosphate isomerase reaction: the role of the fully conserved glutamic acid 97 residue., Samanta M, Murthy MR, Balaram H, Balaram P, Chembiochem. 2011 Aug 16;12(12):1886-96. doi: 10.1002/cbic.201100116. Epub, 2011 Jun 10. PMID: 21671330

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