Structure of a nonameric RNA duplex at room temperature in ChipX microfluidic device

Experimental Data Snapshot

  • Resolution: 1.55 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.207 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


A simple and versatile microfluidic device for efficient biomacromolecule crystallization and structural analysis by serial crystallography.

de Wijn, R.Hennig, O.Roche, J.Engilberge, S.Rollet, K.Fernandez-Millan, P.Brillet, K.Betat, H.Morl, M.Roussel, A.Girard, E.Mueller-Dieckmann, C.Fox, G.C.Olieric, V.Gavira, J.A.Lorber, B.Sauter, C.

(2019) IUCrJ 6: 454-464

  • DOI: https://doi.org/10.1107/S2052252519003622
  • Primary Citation of Related Structures:  
    6GZP, 6HW1, 6IBP, 6IBQ, 6Q3T, 6Q52

  • PubMed Abstract: 

    Determining optimal conditions for the production of well diffracting crystals is a key step in every biocrystallography project. Here, a microfluidic device is described that enables the production of crystals by counter-diffusion and their direct on-chip analysis by serial crystallography at room temperature. Nine 'non-model' and diverse biomacromolecules, including seven soluble proteins, a membrane protein and an RNA duplex, were crystallized and treated on-chip with a variety of standard techniques including micro-seeding, crystal soaking with ligands and crystal detection by fluorescence. Furthermore, the crystal structures of four proteins and an RNA were determined based on serial data collected on four synchrotron beamlines, demonstrating the general applicability of this multipurpose chip concept.

  • Organizational Affiliation

    Architecture et Réactivité de l'ARN, UPR 9002, CNRS, Institut de Biologie Moléculaire et Cellulaire (IBMC), Université de Strasbourg, 15 Rue René Descartes, 67084 Strasbourg, France.


Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains LengthOrganismImage
A, B
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on SO4

Download Ideal Coordinates CCD File 
O4 S
Experimental Data & Validation

Experimental Data

  • Resolution: 1.55 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.207 
  • Space Group: H 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40α = 90
b = 40β = 90
c = 69.11γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-11-LABX-0057_MITOCROSS
French National Research AgencyFranceANR-10-LABX-0036_NETRNA

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-01
    Type: Initial release
  • Version 1.1: 2019-05-29
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description