6I8P

Dye type peroxidase Aa from Streptomyces lividans: 78.4 kGy structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Dose-resolved serial synchrotron and XFEL structures of radiation-sensitive metalloproteins.

Ebrahim, A.Moreno-Chicano, T.Appleby, M.V.Chaplin, A.K.Beale, J.H.Sherrell, D.A.Duyvesteyn, H.M.E.Owada, S.Tono, K.Sugimoto, H.Strange, R.W.Worrall, J.A.R.Axford, D.Owen, R.L.Hough, M.A.

(2019) IUCrJ 6: 543-551

  • DOI: 10.1107/S2052252519003956
  • Primary Citation of Related Structures:  
    6Q31, 6Q34, 6Q3E, 6Q3D, 6I43, 6I7Z, 6I8P, 6I8O, 6I8Q, 6I8E

  • PubMed Abstract: 
  • An approach is demonstrated to obtain, in a sample- and time-efficient manner, multiple dose-resolved crystal structures from room-temperature protein microcrystals using identical fixed-target supports at both synchrotrons and X-ray free-electron lasers (XFELs) ...

    An approach is demonstrated to obtain, in a sample- and time-efficient manner, multiple dose-resolved crystal structures from room-temperature protein microcrystals using identical fixed-target supports at both synchrotrons and X-ray free-electron lasers (XFELs). This approach allows direct comparison of dose-resolved serial synchrotron and damage-free XFEL serial femtosecond crystallography structures of radiation-sensitive proteins. Specifically, serial synchrotron structures of a heme peroxidase enzyme reveal that X-ray induced changes occur at far lower doses than those at which diffraction quality is compromised (the Garman limit), consistent with previous studies on the reduction of heme proteins by low X-ray doses. In these structures, a functionally relevant bond length is shown to vary rapidly as a function of absorbed dose, with all room-temperature synchrotron structures exhibiting linear deformation of the active site compared with the XFEL structure. It is demonstrated that extrapolation of dose-dependent synchrotron structures to zero dose can closely approximate the damage-free XFEL structure. This approach is widely applicable to any protein where the crystal structure is altered by the synchrotron X-ray beam and provides a solution to the urgent requirement to determine intact structures of such proteins in a high-throughput and accessible manner.


    Organizational Affiliation

    School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Deferrochelatase/peroxidaseA, B362Streptomyces coelicolor A3(2)Mutation(s): 0 
Gene Names: SCO2276
EC: 1.11.1
UniProt
Find proteins for Q9RKQ2 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145))
Explore Q9RKQ2 
Go to UniProtKB:  Q9RKQ2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.01α = 90
b = 68.362β = 105.67
c = 74.937γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
cctbx.primedata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-31
    Type: Initial release