5NLT

CvAA9A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural and electronic determinants of lytic polysaccharide monooxygenase reactivity on polysaccharide substrates.

Simmons, T.J.Frandsen, K.E.H.Ciano, L.Tryfona, T.Lenfant, N.Poulsen, J.C.Wilson, L.F.L.Tandrup, T.Tovborg, M.Schnorr, K.Johansen, K.S.Henrissat, B.Walton, P.H.Lo Leggio, L.Dupree, P.

(2017) Nat Commun 8: 1064-1064

  • DOI: 10.1038/s41467-017-01247-3
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Lytic polysaccharide monooxygenases (LPMOs) are industrially important copper-dependent enzymes that oxidatively cleave polysaccharides. Here we present a functional and structural characterization of two closely related AA9-family LPMOs from Lentinu ...

    Lytic polysaccharide monooxygenases (LPMOs) are industrially important copper-dependent enzymes that oxidatively cleave polysaccharides. Here we present a functional and structural characterization of two closely related AA9-family LPMOs from Lentinus similis (LsAA9A) and Collariella virescens (CvAA9A). LsAA9A and CvAA9A cleave a range of polysaccharides, including cellulose, xyloglucan, mixed-linkage glucan and glucomannan. LsAA9A additionally cleaves isolated xylan substrates. The structures of CvAA9A and of LsAA9A bound to cellulosic and non-cellulosic oligosaccharides provide insight into the molecular determinants of their specificity. Spectroscopic measurements reveal differences in copper co-ordination upon the binding of xylan and glucans. LsAA9A activity is less sensitive to the reducing agent potential when cleaving xylan, suggesting that distinct catalytic mechanisms exist for xylan and glucan cleavage. Overall, these data show that AA9 LPMOs can display different apparent substrate specificities dependent upon both productive protein-carbohydrate interactions across a binding surface and also electronic considerations at the copper active site.


    Organizational Affiliation

    Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CvAA9A
A, B, C, D, E, F
252Collariella virescensMutation(s): 0 
Gene Names: aa9
Find proteins for A0A223GEC9 (Collariella virescens)
Go to UniProtKB:  A0A223GEC9
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B, D, E, F
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CU
Query on CU

Download SDF File 
Download CCD File 
A, B, C, D, E, F
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
HIC
Query on HIC
A, B, C, D, E, F
L-PEPTIDE LINKINGC7 H11 N3 O2HIS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.198 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 47.000α = 102.67
b = 59.420β = 98.89
c = 115.450γ = 89.54
Software Package:
Software NamePurpose
XSCALEdata scaling
XDSdata reduction
REFMACrefinement
REFMACphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
The Danish Council for Strategic ResearchDenmark12-134923

Revision History 

  • Version 1.0: 2017-11-01
    Type: Initial release