4NZF:
reference: Structure-specificity relationships in Abp, a GH27 beta-L-arabinopyranosidase from Geobacillus stearothermophilus T6., Lansky S, Salama R, Solomon HV, Feinberg H, Belrhali H, Shoham Y, Shoham G, Acta Crystallogr D Biol Crystallogr. 2014 Nov;70(Pt 11):2994-3012. doi:, 10.1107/S139900471401863X. Epub 2014 Oct 29. PMID: 25372689

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