6f1j

Structure of a Talaromyces pinophilus GH62 Arabinofuranosidase in complex with AraDNJ at 1.25A resolution

spinqualitylabelsall models 6f1j, resolution 1.25Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6f1j is a 2 chain structure with sequence from Talaromyces pinophilus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.25Å Ligands: CA, EDG, PEG, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A2H5BN17_TALPI Alpha-L-arabinofuranosidase involved in the hydrolysis of xylan, a major structural heterogeneous polysaccharide found in plant biomass representing the second most abundant polysaccharide in the biosphere, after cellulose. Releases L-arabinose from arabinoxylan.[ARBA:ARBA00025637][RuleBase:RU368117] Publication Abstract from PubMed The enzymatic hydrolysis of complex plant biomass is a major societal goal of the 21st century in order to deliver renewable energy from nonpetroleum and nonfood sources. One of the major problems in many industrial processes, including the production of second-generation biofuels from lignocellulose, is the presence of `hemicelluloses' such as xylans which block access to the cellulosic biomass. Xylans, with a polymeric beta-1,4-xylose backbone, are frequently decorated with acetyl, glucuronyl and arabinofuranosyl `side-chain' substituents, all of which need to be removed for complete degradation of the xylan. As such, there is interest in side-chain-cleaving enzymes and their action on polymeric substrates. Here, the 1.25 A resolution structure of the Talaromyces pinophilus arabinofuranosidase in complex with the inhibitor AraDNJ, which binds with a Kd of 24 +/- 0.4 microM, is reported. Positively charged iminosugars are generally considered to be potent inhibitors of retaining glycosidases by virtue of their ability to interact with both acid/base and nucleophilic carboxylates. Here, AraDNJ shows good inhibition of an inverting enzyme, allowing further insight into the structural basis for arabinoxylan recognition and degradation. Structure of a Talaromyces pinophilus GH62 arabinofuranosidase in complex with AraDNJ at 1.25 A resolution.,Moroz OV, Sobala LF, Blagova E, Coyle T, Peng W, Morkeberg Krogh KBR, Stubbs KA, Wilson KS, Davies GJ Acta Crystallogr F Struct Biol Commun. 2018 Aug 1;74(Pt 8):490-495. doi:, 10.1107/S2053230X18000250. Epub 2018 Jul 26. PMID:30084398 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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