4ZLC

Crystal structure of the ROQ domain of human Roquin-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structure of human Roquin-2 and its complex with constitutive-decay element RNA

Sakurai, S.Ohto, U.Shimizu, T.

(2015) Acta Crystallogr.,Sect.F 71: 1048-1054

  • DOI: 10.1107/S2053230X15011887
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Roquin mediates mRNA degradation by recognizing the constitutive-decay element (CDE) in the 3' untranslated region of the target gene followed by recruitment of the deadenylation machinery. Deficiency or dysfunction of Roquin has been associated with ...

    Roquin mediates mRNA degradation by recognizing the constitutive-decay element (CDE) in the 3' untranslated region of the target gene followed by recruitment of the deadenylation machinery. Deficiency or dysfunction of Roquin has been associated with autoimmunity and inflammation. To establish the structural basis for the recognition of CDE RNA by Roquin, the crystal structure of the ROQ domain of human Roquin-2 was determined in ligand-free and CDE-derived RNA-bound forms. The ROQ domain of Roquin-2 folded into a winged-helix structure in which the wing region showed structural flexibility and acted as a lid for RNA binding. The CDE RNA, forming a stem-loop structure, bound to the positively charged surface of the ROQ domain and was mainly recognized via direct interactions with the phosphate backbone in the 5' half of the stem-loop and its triloop and via indirect water-mediated interactions. Structural comparison with Roquin-1 revealed conserved features of the RNA-binding mode. Therefore, it is suggested that the Roquin proteins function redundantly in mRNA degradation.


    Organizational Affiliation

    Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Roquin-2
A, B, C, D
155Homo sapiensMutation(s): 0 
Gene Names: RC3H2 (MNAB, RNF164)
EC: 2.3.2.27
Find proteins for Q9HBD1 (Homo sapiens)
Go to Gene View: RC3H2
Go to UniProtKB:  Q9HBD1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 60.760α = 90.00
b = 60.868β = 90.00
c = 169.500γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Japan Society for the Promotion of Science KAKENHIJapan26711002
Japan Society for the Promotion of Science KAKENHIJapan25291010

Revision History 

  • Version 1.0: 2015-08-19
    Type: Initial release