5T3I

cyan fluorescence protein soaked with selenourea for 5 min

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.134 
  • R-Value Observed: 0.136 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Selenourea: a convenient phasing vehicle for macromolecular X-ray crystal structures.

Luo, Z.

(2016) Sci Rep 6: 37123-37123

  • DOI: 10.1038/srep37123
  • Primary Citation of Related Structures:  
    5T3L, 5T3G, 5T3F, 5T3I, 5T3H, 5T3J

  • PubMed Abstract: 

    • Majority of novel X-ray crystal structures of proteins are currently solved using the anomalous diffraction signal provided by selenium after incorporation of selenomethionine instead of natural methionine by genetic engineering methods. However, sel ...

    Majority of novel X-ray crystal structures of proteins are currently solved using the anomalous diffraction signal provided by selenium after incorporation of selenomethionine instead of natural methionine by genetic engineering methods. However, selenium can be inserted into protein crystals in the form of selenourea (SeC(NH 2 ) 2 ), by adding the crystalline powder of selenourea into mother liquor or cryo-solution with native crystals, in analogy to the classic procedure of heavy-atom derivatization. Selenourea is able to bind to reactive groups at the surface of macromolecules primarily through hydrogen bonds, where the selenium atom may serve as acceptor and amide groups as donors. Selenourea has different chemical properties than heavy-atom reagents and halide ions and provides a convenient way of phasing crystal structures of macromolecules.

    Organizational Affiliation: 

    Synchrotron Radiation Research Section, National Cancer Institute, Argonne National Laboratory, Argonne, 60439, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Green fluorescent proteinA237Aequorea victoriaMutation(s): 1 
Gene Names: GFP
Find proteins for P42212 (Aequorea victoria)
Explore P42212 
Go to UniProtKB:  P42212
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SEY
Query on SEY
Download CCD File 
A
selenourea
C H4 N2 Se
IYKVLICPFCEZOF-UHFFFAOYSA-N		 Ligand Interaction
PO4
Query on PO4
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CRF
Query on CRF		AL-PEPTIDE LINKINGC17 H18 N4 O4THR, TRP, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.134 
  • R-Value Observed: 0.136 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.116α = 90
b = 61.52β = 90
c = 69.559γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data reduction
HKL-3000data scaling
SHELXDphasing

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-08-25 
  • Released Date: 2016-11-30 
    • Deposition Author(s): Luo, Z., Dauter, Z.
Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)United States--

Revision History 

  • Version 1.0: 2016-11-30
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Author supporting evidence
  • Version 1.2: 2019-12-04
    Changes: Author supporting evidence