1WZ7

Crystal structure of enhancer of rudimentary homologue (ERH)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.219 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of an enhancer of rudimentary homolog (ERH) at 2.1 Angstroms resolution.

Arai, R.Kukimoto-Niino, M.Uda-Tochio, H.Morita, S.Uchikubo-Kamo, T.Akasaka, R.Etou, Y.Hayashizaki, Y.Kigawa, T.Terada, T.Shirouzu, M.Yokoyama, S.

(2005) Protein Sci 14: 1888-1893

  • DOI: 10.1110/ps.051484505
  • Primary Citation of Related Structures:  
    1WZ7

  • PubMed Abstract: 
  • The enhancer of rudimentary gene, e(r), of Drosophila melanogaster encodes an enhancer of rudimentary (ER) protein with functions implicated in pyrimidine biosynthesis and the cell cycle. The ER homolog (ERH) is highly conserved among vertebrates, invertebrates, and plants ...

    The enhancer of rudimentary gene, e(r), of Drosophila melanogaster encodes an enhancer of rudimentary (ER) protein with functions implicated in pyrimidine biosynthesis and the cell cycle. The ER homolog (ERH) is highly conserved among vertebrates, invertebrates, and plants. Xenopus laevis ERH was reported to be a transcriptional repressor. Here we report the 2.1 Angstroms crystal structure of murine ERH (Protein Data Bank ID 1WZ7), determined by the multiwavelength anomalous dispersion (MAD) method. The monomeric structure of ERH comprises a single domain consisting of three alpha-helices and four beta-strands, which is a novel fold. In the crystal structure, ERH assumes a dimeric structure, through interactions between the beta-sheet regions. The formation of an ERH dimer is consistent with the results of analytical ultracentrifugation. The residues at the core region and at the dimer interface are highly conserved, suggesting the conservation of the dimer formation as well as the monomer fold. The long flexible loop (44 approximately 53) is also significantly conserved, suggesting that this loop region may be important for the functions of ERH. In addition, the putative phosphorylation sites are located at the start of the beta2-strand (Thr18) and at the start of the alpha1-helix (Ser24), implying that the phosphorylation might cause some structural changes.


    Organizational Affiliation

    Protein Research Group, RIKEN Yokohama Institute, Tsurumi-ku, Yokohama, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Enhancer of rudimentary homologA, B, C111Mus musculusMutation(s): 4 
Gene Names: Erh
UniProt
Find proteins for P84089 (Mus musculus)
Explore P84089 
Go to UniProtKB:  P84089
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, CL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.249α = 90
b = 43.26β = 99.95
c = 92.061γ = 90
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-05-03
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance