3A43

Crystal structure of HypA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of HypA, a nickel-binding metallochaperone for [NiFe] hydrogenase maturation.

Watanabe, S.Arai, T.Matsumi, R.Atomi, H.Imanaka, T.Miki, K.

(2009) J.Mol.Biol. 394: 448-459

  • DOI: 10.1016/j.jmb.2009.09.030
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • HypA is one of the auxiliary proteins involved in the maturation of [NiFe] hydrogenases. By an unknown mechanism, HypA functions as a metallochaperone in the insertion of the Ni atom into hydrogenases. We have determined the crystal structures of Hyp ...

    HypA is one of the auxiliary proteins involved in the maturation of [NiFe] hydrogenases. By an unknown mechanism, HypA functions as a metallochaperone in the insertion of the Ni atom into hydrogenases. We have determined the crystal structures of HypA from Thermococcus kodakaraensis KOD1 in both monomeric and dimeric states. The structure of the HypA monomer consists of Ni- and Zn-binding domains. The relative arrangement of the two metal-binding domains has been shown to be associated with local conformations of the conserved Ni-binding motif, suggesting a communication between the Ni- and Zn-binding sites. The HypA dimer has been shown to be stabilized by unexpected domain swapping through archaea-specific linker helices. In addition, the hexameric structure of HypA is formed in the crystal packing. Several hydrogen bonds and hydrophobic interactions stabilize the hexamer interface. These findings suggest the functional diversity of HypA proteins.


    Organizational Affiliation

    Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hydrogenase nickel incorporation protein hypA
A, B
139Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1)Mutation(s): 0 
Gene Names: hypA
Find proteins for Q5JIH3 (Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1))
Go to UniProtKB:  Q5JIH3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
FME
Query on FME
A, B
L-PEPTIDE LINKINGC6 H11 N O3 SMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.215 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 83.933α = 90.00
b = 83.933β = 90.00
c = 365.006γ = 120.00
Software Package:
Software NamePurpose
ADSCdata collection
HKL-2000data scaling
CNSrefinement
SOLVEphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-10-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2014-01-01
    Type: Database references, Other
  • Version 1.3: 2016-12-21
    Type: Structure summary