2ZQQ

Crystal structure of human AUH (3-methylglutaconyl-coa hydratase) mixed with (AUUU)24A RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

AU-rich RNA-binding induces changes in the quaternary structure of AUH

Kurimoto, K.Kuwasako, K.Sandercock, A.M.Unzai, S.Robinson, C.V.Muto, Y.Yokoyama, S.

(2009) Proteins 75: 360-372

  • DOI: 10.1002/prot.22246
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The human AU RNA binding protein/enoyl-Coenzyme A hydratase (AUH) is a 3-hydroxy-3-methylglutaconyl-CoA dehydratase in the leucine degradation pathway. It also possesses an RNA-binding activity to AUUU repeats, which involves no known conserved RNA-b ...

    The human AU RNA binding protein/enoyl-Coenzyme A hydratase (AUH) is a 3-hydroxy-3-methylglutaconyl-CoA dehydratase in the leucine degradation pathway. It also possesses an RNA-binding activity to AUUU repeats, which involves no known conserved RNA-binding domains and is seemingly unrelated to the enzymatic activity. In this study, we performed mass spectrometric analyses to elucidate the oligomeric states of AUH in the presence and absence of RNA. With a short RNA (AUUU) or without RNA, AUH mainly exists as a trimer in solution. On the other hand, the AUH trimer dimerizes upon binding to one molecule of a long RNA containing 24 repeats of the AUUU motif, (AUUU)(24)A. AUH was crystallized with the long RNA. Although the RNA was disordered in the crystalline lattice, the AUH structure was determined as an asymmetric dimer of trimers with a kink in the alignment of the trimer axes, resulting in the formation of two clefts with significantly different sizes.


    Organizational Affiliation

    RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Methylglutaconyl-CoA hydratase
A, B, C, D, E, F
272Homo sapiensMutation(s): 0 
Gene Names: AUH
EC: 4.2.1.18
Find proteins for Q13825 (Homo sapiens)
Go to Gene View: AUH
Go to UniProtKB:  Q13825
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.205 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 83.740α = 90.00
b = 129.276β = 94.32
c = 88.586γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
DENZOdata reduction
AMoREphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-06-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance