5TKH

Neurospora crassa polysaccharide monooxygenase 2 ascorbate treated


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.20 Å
  • R-Value Free: 0.154 
  • R-Value Work: 0.128 
  • R-Value Observed: 0.128 

wwPDB Validation 3D Report Full Report



Literature

Oxygen Activation at the Active Site of a Fungal Lytic Polysaccharide Monooxygenase.

O'Dell, W.B.Agarwal, P.K.Meilleur, F.

(2017) Angew Chem Int Ed Engl 56: 767-770

  • DOI: 10.1002/anie.201610502
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Lytic polysaccharide monooxygenases have attracted vast attention owing to their abilities to disrupt glycosidic bonds via oxidation instead of hydrolysis and to enhance enzymatic digestion of recalcitrant substrates including chitin and cellulose. W ...

    Lytic polysaccharide monooxygenases have attracted vast attention owing to their abilities to disrupt glycosidic bonds via oxidation instead of hydrolysis and to enhance enzymatic digestion of recalcitrant substrates including chitin and cellulose. We have determined high-resolution X-ray crystal structures of an enzyme from Neurospora crassa in the resting state and of a copper(II) dioxo intermediate complex formed in the absence of substrate. X-ray crystal structures also revealed "pre-bound" molecular oxygen adjacent to the active site. An examination of protonation states enabled by neutron crystallography and density functional theory calculations identified a role for a conserved histidine in promoting oxygen activation. These results provide a new structural description of oxygen activation by substrate free lytic polysaccharide monooxygenases and provide insights that can be extended to reactivity in the enzyme-substrate complex.


    Organizational Affiliation

    Department of Molecular and Structural Biochemistry, North Carolina State University and Biology and Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN, 37831, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lytic polysaccharide monooxygenaseA, B223Neurospora crassaMutation(s): 0 
Gene Names: G15G9.090GE21DRAFT_7469
Find proteins for Q8WZQ2 (Neurospora crassa)
Explore Q8WZQ2 
Go to UniProtKB:  Q8WZQ2
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Oligosaccharides
Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C, D
2 N-Glycosylation
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download CCD File 
A, B
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
PER
Query on PER

Download CCD File 
A
PEROXIDE ION
O2
ANAIPYUSIMHBEL-UHFFFAOYSA-N
 Ligand Interaction
OXY
Query on OXY

Download CCD File 
B
OXYGEN MOLECULE
O2
MYMOFIZGZYHOMD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.20 Å
  • R-Value Free: 0.154 
  • R-Value Work: 0.128 
  • R-Value Observed: 0.128 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.17α = 90
b = 42.24β = 98.65
c = 69.37γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United States1069091

Revision History 

  • Version 1.0: 2017-05-17
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Author supporting evidence
  • Version 1.2: 2019-11-27
    Changes: Author supporting evidence
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary