4PNG:
reference: Comparison of epsilon- and delta-class glutathione S-transferases: the crystal structures of the glutathione S-transferases DmGSTE6 and DmGSTE7 from Drosophila melanogaster., Scian M, Le Trong I, Mazari AM, Mannervik B, Atkins WM, Stenkamp RE, Acta Crystallogr D Biol Crystallogr. 2015 Oct 1;71(Pt 10):2089-98. doi:, 10.1107/S1399004715013929. Epub 2015 Sep 26. PMID: 26457432

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