5JGP

Crystal structure of the nitrate/nitrite sensor NarQ fragment bound with iodide ions


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Fast iodide-SAD phasing for high-throughput membrane protein structure determination.

Melnikov, I.Polovinkin, V.Kovalev, K.Gushchin, I.Shevtsov, M.Shevchenko, V.Mishin, A.Alekseev, A.Rodriguez-Valera, F.Borshchevskiy, V.Cherezov, V.Leonard, G.A.Gordeliy, V.Popov, A.

(2017) Sci Adv 3: e1602952-e1602952

  • DOI: https://doi.org/10.1126/sciadv.1602952
  • Primary Citation of Related Structures:  
    5JGP, 5JRF, 5JSI, 5JTB

  • PubMed Abstract: 

    We describe a fast, easy, and potentially universal method for the de novo solution of the crystal structures of membrane proteins via iodide-single-wavelength anomalous diffraction (I-SAD). The potential universality of the method is based on a common feature of membrane proteins-the availability at the hydrophobic-hydrophilic interface of positively charged amino acid residues with which iodide strongly interacts. We demonstrate the solution using I-SAD of four crystal structures representing different classes of membrane proteins, including a human G protein-coupled receptor (GPCR), and we show that I-SAD can be applied using data collection strategies based on either standard or serial x-ray crystallography techniques.


  • Organizational Affiliation

    European Synchrotron Radiation Facility, 38043 Grenoble, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nitrate/nitrite sensor protein NarQ236Escherichia coli K-12Mutation(s): 0 
Gene Names: narQb2469JW2453
EC: 2.7.13.3
Membrane Entity: Yes 
UniProt
Find proteins for P27896 (Escherichia coli (strain K12))
Explore P27896 
Go to UniProtKB:  P27896
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27896
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
NO3
Query on NO3

Download Ideal Coordinates CCD File 
B [auth A]NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.194 
  • Space Group: F 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.241α = 90
b = 73.663β = 90
c = 236.428γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
SHELXCDphasing
SHELXDEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-05-31
    Type: Initial release
  • Version 1.1: 2024-06-19
    Changes: Data collection, Database references, Derived calculations