Search Results - "POULSEN, Jens"
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Stimulation of Lignocellulosic Biomass Hydrolysis by Proteins of Glycoside Hydrolase Family 61: Structure and Function of a Large, Enigmatic Family
Published in Biochemistry (Easton) (20-04-2010)“…Currently, the relatively high cost of enzymes such as glycoside hydrolases that catalyze cellulose hydrolysis represents a barrier to commercialization of a…”
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2
Insights into the oxidative degradation of cellulose by a copper metalloenzyme that exploits biomass components
Published in Proceedings of the National Academy of Sciences - PNAS (13-09-2011)“…The enzymatic degradation of recalcitrant plant biomass is one of the key industrial challenges of the 21st century. Accordingly, there is a continuing drive…”
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3
Structure and boosting activity of a starch-degrading lytic polysaccharide monooxygenase
Published in Nature communications (22-01-2015)“…Lytic polysaccharide monooxygenases (LPMOs) are recently discovered enzymes that oxidatively deconstruct polysaccharides. LPMOs are fundamental in the…”
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Structural and biochemical studies of the glucuronoyl esterase OtCE15A illuminate its interaction with lignocellulosic components
Published in The Journal of biological chemistry (27-12-2019)“…Glucuronoyl esterases (GEs) catalyze the cleavage of ester linkages between lignin and glucuronic acid moieties on glucuronoxylan in plant biomass. As such,…”
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5
Structural and functional investigation of a fungal member of carbohydrate esterase family 15 with potential specificity for rare xylans
Published in Acta crystallographica. Section D, Biological crystallography. (01-06-2023)“…In plant cell walls, covalent bonds between polysaccharides and lignin increase recalcitrance to degradation. Ester bonds are known to exist between glucuronic…”
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6
Probing the determinants of the transglycosylation/hydrolysis partition in a retaining α-l-arabinofuranosidase
Published in New biotechnology (25-05-2021)“…[Display omitted] •L352M alters donor and acceptor subsites, causing a domino effect in the active site.•R69 is confirmed as a key determinant of the…”
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Structure of a lytic polysaccharide monooxygenase from Aspergillus fumigatus and an engineered thermostable variant
Published in Carbohydrate research (01-11-2018)“…Lytic polysaccharide monooxygenases (LPMOs) are industrial enzymes which are gaining use in second generation bioethanol production from lignocellulose by…”
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Polysaccharide utilization loci from Bacteroidota encode CE15 enzymes with possible roles in cleaving pectin-lignin bonds
Published in Applied and environmental microbiology (24-01-2024)“…Lignocellulose is a renewable but complex material exhibiting high recalcitrance to enzymatic hydrolysis, which is attributed, in part, to the presence of…”
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Unliganded and substrate bound structures of the cellooligosaccharide active lytic polysaccharide monooxygenase LsAA9A at low pH
Published in Carbohydrate research (07-08-2017)“…Lytic polysaccharide monooxygenases (LPMOs) have been found to be key components in microbial (bacterial and fungal) degradation of biomass. They are copper…”
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10
Structural and Functional Analysis of a Multimodular Hyperthermostable Xylanase-Glucuronoyl Esterase from Caldicellulosiruptor kristjansonii
Published in Biochemistry (Easton) (13-07-2021)“…The hyperthermophilic bacterium Caldicellulosiruptor kristjansonii encodes an unusual enzyme, CkXyn10C-GE15A, which incorporates two catalytic domains, a…”
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The molecular basis of polysaccharide cleavage by lytic polysaccharide monooxygenases
Published in Nature chemical biology (01-04-2016)“…Lytic polysaccharide monooxygenases (LPMOs) are a class of copper-dependent enzymes that oxidatively degrade polysaccharides and find use in industrial…”
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Insights into an unusual Auxiliary Activity 9 family member lacking the histidine brace motif of lytic polysaccharide monooxygenases
Published in The Journal of biological chemistry (08-11-2019)“…Lytic polysaccharide monooxygenases (LPMOs) are redox-enzymes involved in biomass degradation. All characterized LPMOs possess an active site of two highly…”
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13
Structure–function analyses reveal that a glucuronoyl esterase from Teredinibacter turnerae interacts with carbohydrates and aromatic compounds
Published in The Journal of biological chemistry (19-04-2019)“…Glucuronoyl esterases (GEs) catalyze the cleavage of ester linkages found between lignin and glucuronic acid moieties on glucuronoxylan in plant biomass. As…”
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An 1,4-α-Glucosyltransferase Defines a New Maltodextrin Catabolism Scheme in Lactobacillus acidophilus
Published in Applied and environmental microbiology (20-07-2020)“…The maltooligosaccharide (MOS) utilization locus in NCFM, a model for human small-intestine lactobacilli, encodes three glycoside hydrolases (GHs): a putative…”
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Camel and bovine chymosin: the relationship between their structures and cheese-making properties
Published in Acta crystallographica. Section D, Biological crystallography. (01-05-2013)“…Bovine and camel chymosin are aspartic peptidases that are used industrially in cheese production. They cleave the Phe105‐Met106 bond of the milk protein…”
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Structure of a hyperthermostable carbonic anhydrase identified from an active hydrothermal vent chimney
Published in Enzyme and microbial technology (01-07-2018)“…[Display omitted] •A carbonic anhydrase gene was identified from an hydrothermal vent metagenome.•The gene product LOGACA is a dimeric α-type carbonic…”
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Enzymology and Structure of the GH13_31 Glucan 1,6-α-Glucosidase That Confers Isomaltooligosaccharide Utilization in the Probiotic Lactobacillus acidophilus NCFM
Published in Journal of Bacteriology (01-08-2012)“…Isomaltooligosaccharides (IMO) have been suggested as promising prebiotics that stimulate the growth of probiotic bacteria. Genomes of probiotic lactobacilli…”
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Synthesis of Isofagomine Derivatives as New Fluorescence pH Indicators/Glycosidase Inhibitors
Published in European journal of organic chemistry (15-07-2020)“…Inhibitor protonation of azasugars of the isofagomine type when bound to enzyme can be investigated using photon induced electron transfer (PET) quenching of…”
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Structure of Aspergillus aculeatus β‐1,4‐galactanase in complex with galactobiose
Published in Acta crystallographica. Section F, Structural biology communications (01-06-2019)“…β‐1,4‐Galactanases are glycoside hydrolases that are involved in the degradation of pectin and belong to family 53 in the classification of glycoside…”
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Determination of protonation states of iminosugar-enzyme complexes using photoinduced electron transfer
Published in Chemical science (Cambridge) (01-11-2017)“…A series of -alkylated analogues of 1-deoxynojirimycin containing a fluorescent 10-chloro-9-anthracene group in the -alkyl substituent were prepared. The…”
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