4WUJ

Structural Biochemistry of a Fungal LOV Domain Photoreceptor Reveals an Evolutionarily Conserved Pathway Integrating Blue-Light and Oxidative Stress


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Biochemistry of a Fungal LOV Domain Photoreceptor Reveals an Evolutionarily Conserved Pathway Integrating Light and Oxidative Stress.

Lokhandwala, J.Hopkins, H.C.Rodriguez-Iglesias, A.Dattenbock, C.Schmoll, M.Zoltowski, B.D.

(2015) Structure 23: 116-125

  • DOI: 10.1016/j.str.2014.10.020

  • PubMed Abstract: 
  • Fungal LOV proteins facilitate photoadaptation via blue light regulation of dimer formation. Despite considerable homology of these proteins in closely related fungi, deviations in signaling exist. Here we report the crystal structure of ENVOY (ENV1) ...

    Fungal LOV proteins facilitate photoadaptation via blue light regulation of dimer formation. Despite considerable homology of these proteins in closely related fungi, deviations in signaling exist. Here we report the crystal structure of ENVOY (ENV1), a homolog of N. crassa VVD in the fungus T. reesei, a model organism for plant cell wall degradation. Structural studies contradict a model of reversible competitive dimerization. Rather, evolutionary pressures have facilitated a two-residue shift in the position of a key Cys residue (Cys96) that enables the integration of environmental stress and light responses. A Cys96Thr variant abolishes adaptive responses to light and oxidative stress in a carbon source-dependent manner in vivo. Phylogenetic analysis verifies an evolutionary relevance of the Cys residue shift in different orders within Sordariomycetes. In this manner, we identified a widespread oxidative stress signaling mechanism that couples metabolic sensing and blue light responses not previously identified in LOV proteins.


    Organizational Affiliation

    Department of Chemistry, Southern Methodist University, Dallas, TX 75275, USA.,Department of Chemistry, Southern Methodist University, Dallas, TX 75275, USA. Electronic address: bzoltowski@smu.edu.,Austrian Institute of Technology, Department of Health and Environment, Bioresources, Konrad Lorenz Straße 24, 3430 Tulln, Austria.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glycoside hydrolase family 15, cellulose signaling associated protein envoy
A, B, C, D
147Hypocrea jecorina (strain QM6a)Mutation(s): 0 
Gene Names: env1
Find proteins for G0RUC2 (Hypocrea jecorina (strain QM6a))
Go to UniProtKB:  G0RUC2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
FMN
Query on FMN

Download SDF File 
Download CCD File 
A, B, C, D
FLAVIN MONONUCLEOTIDE
RIBOFLAVIN MONOPHOSPHATE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 44.342α = 90.00
b = 102.225β = 91.07
c = 71.550γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
PHASERphasing
PDB_EXTRACTdata extraction
HKL-3000phasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Herman Frasch FoundationUnited States739-HF12

Revision History 

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-01-28
    Type: Database references
  • Version 1.2: 2017-11-22
    Type: Database references, Derived calculations, Other, Refinement description, Source and taxonomy