6QQH

Cryogenic temperature structure of the ground state of AtPhot2LOV2 recorded after an accumulated dose of 2.68 MGy

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.38 Å
  • R-Value Free: 0.170 
  • R-Value Work: 0.140 
  • R-Value Observed: 0.141 

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Literature

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

    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: 

    Université Grenoble Alpes, CNRS, CEA, IBS (Institut de Biologie Structurale), F-38000 Grenoble, France.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phototropin-2A128Arabidopsis thalianaMutation(s): 0 
Gene Names: PHOT2, CAV1, KIN7, NPL1, At5g58140, K21L19.6
EC: 2.7.11.1
UniProt
Find proteins for P93025 (Arabidopsis thaliana)
Explore P93025 
Go to UniProtKB:  P93025
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMN (Subject of Investigation/LOI)
Query on FMN
Download Ideal Coordinates CCD File 
 B [auth A]FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.38 Å
  • R-Value Free: 0.170 
  • R-Value Work: 0.140 
  • R-Value Observed: 0.141 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.148α = 90
b = 40.148β = 90
c = 131.575γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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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