2Z1T

Crystal Structure of Hydrogenase Maturation Protein HypE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structures of Hydrogenase Maturation Protein HypE in the Apo and ATP-bound Forms

Shomura, Y.Komori, H.Miyabe, N.Tomiyama, M.Shibata, N.Higuchi, Y.

(2007) J.Mol.Biol. 372: 1045-1054

  • DOI: 10.1016/j.jmb.2007.07.023
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The hydrogenase maturation protein HypE serves an essential function in the biosynthesis of the nitrile group, which is subsequently coordinated to Fe as CN(-) ligands in [Ni-Fe] hydrogenase. Here, we present the crystal structures of HypE from Desul ...

    The hydrogenase maturation protein HypE serves an essential function in the biosynthesis of the nitrile group, which is subsequently coordinated to Fe as CN(-) ligands in [Ni-Fe] hydrogenase. Here, we present the crystal structures of HypE from Desulfovibrio vulgaris Hildenborough in the presence and in the absence of ATP at a resolution of 2.0 A and 2.6 A, respectively. Comparison of the apo structure with the ATP-bound structure reveals that binding ATP causes an induced-fit movement of the N-terminal portion, but does not entail an overall structural change. The residue Cys341 at the C terminus, whose thiol group is supposed to be carbamoylated before the nitrile group synthesis, is completely buried within the protein and is located in the vicinity of the gamma-phosphate group of the bound ATP. This suggests that the catalytic reaction occurs in this configuration but that a conformational change is required for the carbamoylation of Cys341. A glutamate residue is found close to the thiol group as well, which is suggestive of deprotonation of the carbamoyl group at the beginning of the reactions.


    Organizational Affiliation

    Department of Life Science, Graduate School of Life Science, University of Hyogo, 3-2-1 Koto, Ako-Gun, Hyogo, Japan. shomura@sci.u-hyogo.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hydrogenase expression/formation protein HypE
A
343Desulfovibrio vulgaris (strain Hildenborough / ATCC 29579 / DSM 644 / NCIMB 8303)Mutation(s): 0 
Gene Names: hypE
Find proteins for Q72F88 (Desulfovibrio vulgaris (strain Hildenborough / ATCC 29579 / DSM 644 / NCIMB 8303))
Go to UniProtKB:  Q72F88
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.229 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 67.400α = 90.00
b = 67.400β = 90.00
c = 183.988γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
MOLREPphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-10-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Derived calculations, Source and taxonomy, Version format compliance