4WLC:
reference: Structural insights into the catalytic reaction that is involved in the reorientation of Trp238 at the substrate-binding site in GH13 dextran glucosidase., Kobayashi M, Saburi W, Nakatsuka D, Hondoh H, Kato K, Okuyama M, Mori H, Kimura A, Yao M, FEBS Lett. 2015 Feb 13;589(4):484-9. doi: 10.1016/j.febslet.2015.01.005. Epub, 2015 Jan 14. PMID: 25595454

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