3AYR:
reference: Substrate binding of a GH5 endoglucanase from the ruminal fungus Piromyces rhizinflata., Tseng CW, Ko TP, Guo RT, Huang JW, Wang HC, Huang CH, Cheng YS, Wang AH, Liu JR, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Oct 1;67(Pt 10):1189-94., Epub 2011 Sep 24. PMID: 22102024

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