4X3B

A micro-patterned silicon chip as sample holder for macromolecular crystallography experiments with minimal background scattering


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A micro-patterned silicon chip as sample holder for macromolecular crystallography experiments with minimal background scattering.

Roedig, P.Vartiainen, I.Duman, R.Panneerselvam, S.Stube, N.Lorbeer, O.Warmer, M.Sutton, G.Stuart, D.I.Weckert, E.David, C.Wagner, A.Meents, A.

(2015) Sci Rep 5: 10451-10451

  • DOI: 10.1038/srep10451
  • Primary Citation of Related Structures:  4X35

  • PubMed Abstract: 
  • At low emittance synchrotron sources it has become possible to perform structure determinations from the measurement of multiple microcrystals which were previously considered too small for diffraction experiments. Conventional mounting techniques do ...

    At low emittance synchrotron sources it has become possible to perform structure determinations from the measurement of multiple microcrystals which were previously considered too small for diffraction experiments. Conventional mounting techniques do not fulfill the requirements of these new experiments. They significantly contribute to background scattering and it is difficult to locate the crystals, making them incompatible with automated serial crystallography. We have developed a micro-fabricated sample holder from single crystalline silicon with micropores, which carries up to thousands of crystals and significantly reduces the background scattering level. For loading, the suspended microcrystals are pipetted onto the chip and excess mother liquor is subsequently soaked off through the micropores. Crystals larger than the pore size are retained and arrange themselves according to the micropore pattern. Using our chip we were able to collect 1.5 ├ů high resolution diffraction data from protein microcrystals with sizes of 4 micrometers and smaller.


    Organizational Affiliation

    Deutsches Elektronen-Synchrotron DESY, Photon Science, Notkestra├če 85, 22607 Hamburg.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lysozyme C
A
129Gallus gallusGene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.186 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 78.210α = 90.00
b = 78.210β = 90.00
c = 37.380γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-06-10
    Type: Initial release