8PXH

Structure of TauA from E. coli, solved at wavelength 2.375 A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.77 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Experimental phasing opportunities for macromolecular crystallography at very long wavelengths.

El Omari, K.Duman, R.Mykhaylyk, V.Orr, C.M.Latimer-Smith, M.Winter, G.Grama, V.Qu, F.Bountra, K.Kwong, H.S.Romano, M.Reis, R.I.Vogeley, L.Vecchia, L.Owen, C.D.Wittmann, S.Renner, M.Senda, M.Matsugaki, N.Kawano, Y.Bowden, T.A.Moraes, I.Grimes, J.M.Mancini, E.J.Walsh, M.A.Guzzo, C.R.Owens, R.J.Jones, E.Y.Brown, D.G.Stuart, D.I.Beis, K.Wagner, A.

(2023) Commun Chem 6: 219-219

  • DOI: https://doi.org/10.1038/s42004-023-01014-0
  • Primary Citation of Related Structures:  
    8PWN, 8PX0, 8PX1, 8PX4, 8PX5, 8PX7, 8PX9, 8PXC, 8PXG, 8PXH, 8PXJ, 8PXK, 8PXL, 8PYV, 8PYZ, 8PZ4, 8PZ5

  • PubMed Abstract: 

    Despite recent advances in cryo-electron microscopy and artificial intelligence-based model predictions, a significant fraction of structure determinations by macromolecular crystallography still requires experimental phasing, usually by means of single-wavelength anomalous diffraction (SAD) techniques. Most synchrotron beamlines provide highly brilliant beams of X-rays of between 0.7 and 2 Å wavelength. Use of longer wavelengths to access the absorption edges of biologically important lighter atoms such as calcium, potassium, chlorine, sulfur and phosphorus for native-SAD phasing is attractive but technically highly challenging. The long-wavelength beamline I23 at Diamond Light Source overcomes these limitations and extends the accessible wavelength range to λ = 5.9 Å. Here we report 22 macromolecular structures solved in this extended wavelength range, using anomalous scattering from a range of elements which demonstrate the routine feasibility of lighter atom phasing. We suggest that, in light of its advantages, long-wavelength crystallography is a compelling option for experimental phasing.


  • Organizational Affiliation

    Diamond Light Source, Harwell Science and Innovation Campus, -, OX110DE, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Taurine ABC transporter substrate-binding protein
A, B
298Escherichia coliMutation(s): 0 
Gene Names: tauA
UniProt
Find proteins for Q47537 (Escherichia coli (strain K12))
Explore Q47537 
Go to UniProtKB:  Q47537
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ47537
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 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth B],
K [auth B],
L [auth B],
M [auth B],
N [auth B],
O [auth B]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
TAU
Query on TAU

Download Ideal Coordinates CCD File 
C [auth A],
J [auth B]
2-AMINOETHANESULFONIC ACID
C2 H7 N O3 S
XOAAWQZATWQOTB-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.77 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.01α = 90
b = 71.32β = 90
c = 165.03γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
HKL2Mapphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Diamond Light SourceUnited Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2023-10-25
    Type: Initial release