6YOF

Structure of PepTSt from COC IMISX setup collected by rotation serial crystallography on crystals prelocated by 2D X-ray phase-contrast imaging


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Low-dose in situ prelocation of protein microcrystals by 2D X-ray phase-contrast imaging for serial crystallography.

Martiel, I.Huang, C.Y.Villanueva-Perez, P.Panepucci, E.Basu, S.Caffrey, M.Pedrini, B.Bunk, O.Stampanoni, M.Wang, M.

(2020) IUCrJ 7: 1131-1141

  • DOI: https://doi.org/10.1107/S2052252520013238
  • Primary Citation of Related Structures:  
    6YOB, 6YOC, 6YOD, 6YOE, 6YOF, 6YOG

  • PubMed Abstract: 

    Serial protein crystallography has emerged as a powerful method of data collection on small crystals from challenging targets, such as membrane proteins. Multiple microcrystals need to be located on large and often flat mounts while exposing them to an X-ray dose that is as low as possible. A crystal-prelocation method is demonstrated here using low-dose 2D full-field propagation-based X-ray phase-contrast imaging at the X-ray imaging beamline TOMCAT at the Swiss Light Source (SLS). This imaging step provides microcrystal coordinates for automated serial data collection at a microfocus macromolecular crystallography beamline on samples with an essentially flat geometry. This prelocation method was applied to microcrystals of a soluble protein and a membrane protein, grown in a commonly used double-sandwich in situ crystallization plate. The inner sandwiches of thin plastic film enclosing the microcrystals in lipid cubic phase were flash cooled and imaged at TOMCAT. Based on the obtained crystal coordinates, both still and rotation wedge serial data were collected automatically at the SLS PXI beamline, yielding in both cases a high indexing rate. This workflow can be easily implemented at many synchrotron facilities using existing equipment, or potentially integrated as an online technique in the next-generation macromolecular crystallography beamline, and thus benefit a number of dose-sensitive challenging protein targets.


  • Organizational Affiliation

    Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Di-or tripeptide:H+ symporter483Streptococcus thermophilus LMG 18311Mutation(s): 0 
Gene Names: dtpTstu0970
Membrane Entity: Yes 
UniProt
Find proteins for Q5M4H8 (Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311))
Explore Q5M4H8 
Go to UniProtKB:  Q5M4H8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5M4H8
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
78M
Query on 78M

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],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
T [auth A],
U [auth A],
V [auth A]
(2S)-2,3-DIHYDROXYPROPYL(7Z)-PENTADEC-7-ENOATE
C18 H34 O4
BJMLBVHMHXYQFS-JJEJIETFSA-N
PGE
Query on PGE

Download Ideal Coordinates CCD File 
X [auth A]TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
PG0
Query on PG0

Download Ideal Coordinates CCD File 
W [auth A]2-(2-METHOXYETHOXY)ETHANOL
C5 H12 O3
SBASXUCJHJRPEV-UHFFFAOYSA-N
PO4
Query on PO4

Download Ideal Coordinates CCD File 
B [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.45α = 90
b = 110.7β = 90
c = 111.18γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-11-04
    Type: Initial release
  • Version 1.1: 2020-12-02
    Changes: Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description