6O5W

Crystal structure of MORC3 CW domain fused with viral influenza A NS1 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.169 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

MORC3 Is a Target of the Influenza A Viral Protein NS1.

Zhang, Y.Ahn, J.Green, K.J.Vann, K.R.Black, J.Brooke, C.B.Kutateladze, T.G.

(2019) Structure 27: 1029-1033.e3

  • DOI: 10.1016/j.str.2019.03.015
  • Primary Citation of Related Structures:  
    6O5W

  • PubMed Abstract: 
  • Microrchidia 3 (MORC3), a human ATPase linked to several autoimmune disorders, has been characterized both as a negative and positive regulator of influenza A virus. Here, we report that the CW domain of MORC3 (MORC3-CW) is targeted by the C-terminal tail of the influenza H3N2 protein NS1 ...

    Microrchidia 3 (MORC3), a human ATPase linked to several autoimmune disorders, has been characterized both as a negative and positive regulator of influenza A virus. Here, we report that the CW domain of MORC3 (MORC3-CW) is targeted by the C-terminal tail of the influenza H3N2 protein NS1. The crystal structure of the MORC3-CW:NS1 complex shows that NS1 occupies the same binding site in CW that is normally occupied by histone H3, a physiological ligand of MORC3-CW. Comparable binding affinities of MORC3-CW to H3 and NS1 peptides and to the adjacent catalytic ATPase domain suggest that the viral protein can compete with the host histone for the association with CW, releasing MORC3 autoinhibition and activating the catalytic function of MORC3. Our structural, biochemical, and cellular analyses suggest that MORC3 might affect the infectivity of influenza virus and therefore has a role in cell immune response.


    Organizational Affiliation

    Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, USA. Electronic address: tatiana.kutateladze@ucdenver.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NS1-linked peptide,MORC family CW-type zinc finger protein 3A59Homo sapiensMutation(s): 0 
Gene Names: MORC3KIAA0136NXP2ZCWCC3
UniProt & NIH Common Fund Data Resources
Find proteins for Q14149 (Homo sapiens)
Explore Q14149 
Go to UniProtKB:  Q14149
PHAROS:  Q14149
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14149
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.169 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.912α = 90
b = 37.424β = 90
c = 50.314γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
SCALEPACKdata scaling
AutoSolphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-06-12
    Changes: Data collection, Database references