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Title: Structural and molecular dynamics studies of a C1‐oxidizing lytic polysaccharide monooxygenase from Heterobasidion irregulare reveal amino acids important for substrate recognition

Journal Article · · Federation of European Biochemical Societies (FEBS) Journal
DOI:https://doi.org/10.1111/febs.14472· OSTI ID:1434537
 [1];  [2];  [1];  [3];  [4];  [4];  [5];  [6];  [1]
  1. Department of Molecular Sciences Swedish University of Agricultural Sciences Uppsala Sweden
  2. Department of Chemical and Materials Engineering University of Kentucky Lexington KY USA
  3. Department of Chemistry, Biotechnology, and Food Science Norwegian University of Life Sciences Ås Norway
  4. Biosciences Center National Renewable Energy Laboratory Golden CO USA
  5. Department of Molecular Sciences Swedish University of Agricultural Sciences Uppsala Sweden, Department of Chemical Engineering University of Patras Greece
  6. Department of Chemical and Materials Engineering University of Kentucky Lexington KY USA, Directorate of Engineering Division of Chemical, Bioengineering, Environmental, and Transport Systems National Science Foundation Alexandria VA USA

Lytic polysaccharide monooxygenases ( LPMO s) are a group of recently discovered enzymes that play important roles in the decomposition of recalcitrant polysaccharides. Here, we report the biochemical, structural, and computational characterization of an LPMO from the white‐rot fungus Heterobasidion irregulare ( H i LPMO 9B). This enzyme oxidizes cellulose at the C1 carbon of glycosidic linkages. The crystal structure of Hi LPMO 9B was determined at 2.1 Å resolution using X‐ray crystallography. Unlike the majority of the currently available C1‐specific LPMO structures, the Hi LPMO 9B structure contains an extended L2 loop, connecting β‐strands β2 and β3 of the β‐sandwich structure. Molecular dynamics ( MD ) simulations suggest roles for both aromatic and acidic residues in the substrate binding of Hi LPMO 9B, with the main contribution from the residues located on the extended region of the L2 loop (Tyr20) and the LC loop (Asp205, Tyr207, and Glu210). Asp205 and Glu210 were found to be involved in the hydrogen bonding with the hydroxyl group of the C6 carbon of glucose moieties directly or via a water molecule. Two different binding orientations were observed over the course of the MD simulations. In each orientation, the active‐site copper of this LPMO preferentially skewed toward the pyranose C1 of the glycosidic linkage over the targeted glycosidic bond. This study provides additional insight into cellulose binding by C1‐specific LPMO s, giving a molecular‐level picture of active site substrate interactions. Database The atomic coordinates and structure factors for Hi LPMO 9B have been deposited in the Protein Data Bank with accession code 5NNS .

Sponsoring Organization:
USDOE
OSTI ID:
1434537
Journal Information:
Federation of European Biochemical Societies (FEBS) Journal, Journal Name: Federation of European Biochemical Societies (FEBS) Journal Vol. 285 Journal Issue: 12; ISSN 1742-464X
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

References (73)

Evolution of substrate specificity in bacterial AA10 lytic polysaccharide monooxygenases journal January 2014
CHAINSAW : a program for mutating pdb files used as templates in molecular replacement journal April 2008
Secretome data from Trichoderma reesei and Aspergillus niger cultivated in submerged and sequential fermentation methods journal September 2016
Novel enzymes for the degradation of cellulose journal January 2012
Interactions of a fungal lytic polysaccharide monooxygenase with β-glucan substrates and cellobiose dehydrogenase journal May 2016
Quantum mechanical calculations suggest that lytic polysaccharide monooxygenases use a copper-oxyl, oxygen-rebound mechanism journal December 2013
On the catalytic mechanisms of lytic polysaccharide monooxygenases journal April 2016
Fungal Cellulases journal January 2015
Refinement of Macromolecular Structures by the Maximum-Likelihood Method journal May 1997
The molecular basis of polysaccharide cleavage by lytic polysaccharide monooxygenases journal February 2016
Binding Preferences, Surface Attachment, Diffusivity, and Orientation of a Family 1 Carbohydrate-binding Module on Cellulose journal April 2012
Scalable molecular dynamics with NAMD journal January 2005
Efficient separation of oxidized cello-oligosaccharides generated by cellulose degrading lytic polysaccharide monooxygenases journal January 2013
Stimulation of Lignocellulosic Biomass Hydrolysis by Proteins of Glycoside Hydrolase Family 61 Structure and Function of a Large, Enigmatic Family journal April 2010
Crystal Structure and Computational Characterization of the Lytic Polysaccharide Monooxygenase GH61D from the Basidiomycota Fungus Phanerochaete chrysosporium journal March 2013
Molecular-Level Origins of Biomass Recalcitrance: Decrystallization Free Energies for Four Common Cellulose Polymorphs journal April 2011
An Oxidative Enzyme Boosting the Enzymatic Conversion of Recalcitrant Polysaccharides journal October 2010
A Structural Overview of gh61 Proteins – Fungal Cellulose Degrading Polysaccharide Monooxygenases journal September 2012
Distribution and diversity of enzymes for polysaccharide degradation in fungi journal March 2017
Insights into the oxidative degradation of cellulose by a copper metalloenzyme that exploits biomass components journal August 2011
Comparison of simple potential functions for simulating liquid water journal July 1983
Lytic polysaccharide monooxygenases disrupt the cellulose fibers structure journal January 2017
Simultaneous analysis of C1 and C4 oxidized oligosaccharides, the products of lytic polysaccharide monooxygenases acting on cellulose journal May 2016
A C4-oxidizing Lytic Polysaccharide Monooxygenase Cleaving Both Cellulose and Cello-oligosaccharides journal December 2013
Structural basis for cellobiose dehydrogenase action during oxidative cellulose degradation journal July 2015
Oxidative cleavage of polysaccharides by monocopper enzymes depends on H2O2 journal August 2017
The Podospora anserina lytic polysaccharide monooxygenase PaLPMO9H catalyzes oxidative cleavage of diverse plant cell wall matrix glycans journal March 2017
Transcriptome and Secretome Analyses of Phanerochaete chrysosporium Reveal Complex Patterns of Gene Expression journal April 2009
All-Atom Empirical Potential for Molecular Modeling and Dynamics Studies of Proteins journal April 1998
Additive empirical force field for hexopyranose monosaccharides journal November 2008
Lytic polysaccharide monooxygenases from Myceliophthora thermophila C1 differ in substrate preference and reducing agent specificity journal August 2016
Discovery of LPMO activity on hemicelluloses shows the importance of oxidative processes in plant cell wall degradation journal April 2014
Cellulose Surface Degradation by a Lytic Polysaccharide Monooxygenase and Its Effect on Cellulase Hydrolytic Efficiency journal October 2014
CHARMM: The biomolecular simulation program journal July 2009
Extracellular electron transfer systems fuel cellulose oxidative degradation journal April 2016
XDS journal January 2010
Solvent-Induced Forces between Two Hydrophilic Groups journal February 1994
Lytic polysaccharide monooxygenases: a crystallographer's view on a new class of biomass-degrading enzymes journal October 2016
The Role of the Secondary Coordination Sphere in a Fungal Polysaccharide Monooxygenase journal March 2017
Oxidative Cleavage of Cellulose by Fungal Copper-Dependent Polysaccharide Monooxygenases journal December 2011
Substrate specificity and regioselectivity of fungal AA9 lytic polysaccharide monooxygenases secreted by Podospora anserina journal June 2015
ExPASy: the proteomics server for in-depth protein knowledge and analysis journal July 2003
Structural Basis for Substrate Targeting and Catalysis by Fungal Polysaccharide Monooxygenases journal June 2012
Oxygen Activation at the Active Site of a Fungal Lytic Polysaccharide Monooxygenase journal December 2016
The Putative Endoglucanase PcGH61D from Phanerochaete chrysosporium Is a Metal-Dependent Oxidative Enzyme that Cleaves Cellulose journal November 2011
Fungal cellulose degradation by oxidative enzymes: from dysfunctional GH61 family to powerful lytic polysaccharide monooxygenase family journal September 2014
Extending the treatment of backbone energetics in protein force fields: Limitations of gas-phase quantum mechanics in reproducing protein conformational distributions in molecular dynamics simulations journal August 2004
Lytic Polysaccharide Monooxygenases: The Microbial Power Tool for Lignocellulose Degradation journal November 2016
MolProbity : all-atom structure validation for macromolecular crystallography journal December 2009
Deciphering key features in protein structures with the new ENDscript server journal April 2014
Coot model-building tools for molecular graphics journal November 2004
Oxidoreductive Cellulose Depolymerization by the Enzymes Cellobiose Dehydrogenase and Glycoside Hydrolase 61 journal August 2011
Carbohydrate-binding modules: fine-tuning polysaccharide recognition journal September 2004
Fg LPMO9A from Fusarium graminearum cleaves xyloglucan independently of the backbone substitution pattern journal September 2016
Structure and boosting activity of a starch-degrading lytic polysaccharide monooxygenase journal January 2015
Structural and Functional Characterization of a Lytic Polysaccharide Monooxygenase with Broad Substrate Specificity journal July 2015
Lytic Polysaccharide Monooxygenases in Biomass Conversion journal December 2015
Using a model filamentous fungus to unravel mechanisms of lignocellulose deconstruction journal January 2013
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
An introduction to data reduction: space-group determination, scaling and intensity statistics journal March 2011
A quantitative indicator diagram for lytic polysaccharide monooxygenases reveals the role of aromatic surface residues in HjLPMO9A regioselectivity journal May 2017
CHARMM Additive All-Atom Force Field for Glycosidic Linkages between Hexopyranoses journal August 2009
Type-dependent action modes of TtAA9E and TaAA9A acting on cellulose and differently pretreated lignocellulosic substrates journal February 2017
Phi/Psi-chology: Ramachandran revisited journal December 1996
Free R value: a novel statistical quantity for assessing the accuracy of crystal structures journal January 1992
CHARMM Additive All-Atom Force Field for Carbohydrate Derivatives and Its Utility in Polysaccharide and Carbohydrate–Protein Modeling journal August 2011
The First Structure of a Glycoside Hydrolase Family 61 Member, Cel61B from Hypocrea jecorina, at 1.6 Å Resolution journal October 2008
Structural and electronic determinants of lytic polysaccharide monooxygenase reactivity on polysaccharide substrates journal October 2017
Determinants of Regioselective Hydroxylation in the Fungal Polysaccharide Monooxygenases journal December 2013
Crystal Structure and Hydrogen-Bonding System in Cellulose Iβ from Synchrotron X-ray and Neutron Fiber Diffraction journal August 2002
Classification of fungal and bacterial lytic polysaccharide monooxygenases journal May 2015
Cellulose Degradation by Polysaccharide Monooxygenases journal June 2015
Phaser crystallographic software journal July 2007

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