4ZL7:
reference: Sent packing: protein engineering generates a new crystal form of Pseudomonas aeruginosa DsbA1 with increased catalytic surface accessibility., McMahon RM, Coincon M, Tay S, Heras B, Morton CJ, Scanlon MJ, Martin JL, Acta Crystallogr D Biol Crystallogr. 2015 Dec 1;71(Pt 12):2386-95. doi:, 10.1107/S1399004715018519. Epub 2015 Nov 26. PMID: 26627647

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