Cryogenic temperature structure of blue light-irradiated AtPhot2LOV2 recorded after an accumulated dose of 24 kGy

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.196 

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Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


Specific radiation damage is a lesser concern at room temperature.

Gotthard, G.Aumonier, S.De Sanctis, D.Leonard, G.von Stetten, D.Royant, A.

(2019) IUCrJ 6: 665-680

  • DOI: https://doi.org/10.1107/S205225251900616X
  • Primary Citation of Related Structures:  
    6QQ8, 6QQ9, 6QQA, 6QQB, 6QQC, 6QQD, 6QQE, 6QQF, 6QQH, 6QQI, 6QQJ, 6QQK, 6QSA

  • PubMed Abstract: 

    Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-called specific radiation damage that affects certain amino-acid residues and, in particular, the active sites of many proteins. Here, a series of MX experiments are described which suggest that specific and global radiation damage are much less decoupled at room temperature than they are at cryogenic temperatures. The results reported here demonstrate the interest in reviving the practice of collecting MX diffraction data at room temperature and allow structural biologists to favourably envisage the development of time-resolved MX experiments at synchrotron sources.

  • Organizational Affiliation

    European Synchrotron Radiation Facility, F-38043 Grenoble, France.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Phototropin-2128Arabidopsis thalianaMutation(s): 0 
Gene Names: PHOT2CAV1KIN7NPL1At5g58140K21L19.6
Find proteins for P93025 (Arabidopsis thaliana)
Explore P93025 
Go to UniProtKB:  P93025
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP93025
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on FMN

Download Ideal Coordinates CCD File 
C17 H21 N4 O9 P
Experimental Data & Validation

Experimental Data

  • Resolution: 1.70 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.196 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.324α = 90
b = 40.324β = 90
c = 131.278γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-19
    Type: Initial release
  • Version 1.1: 2019-07-31
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-24
    Changes: Advisory, Data collection, Database references, Refinement description