1K1D

Crystal structure of D-hydantoinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.263 
  • R-Value Observed: 0.263 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of D-hydantoinase from Bacillus stearothermophilus: insight into the stereochemistry of enantioselectivity.

Cheon, Y.H.Kim, H.S.Han, K.H.Abendroth, J.Niefind, K.Schomburg, D.Wang, J.Kim, Y.

(2002) Biochemistry 41: 9410-9417

  • DOI: 10.1021/bi0201567
  • Primary Citation of Related Structures:  
    1K1D

  • PubMed Abstract: 
  • Industrial production of antibiotics, such as semisynthetic penicillins and cephalosporins, requires optically pure D-p-hydroxylphenylglycine and its derivatives as important side-chain precursors. To produce optically pure D-amino acids, microbial D-hydantoinase (E ...

    Industrial production of antibiotics, such as semisynthetic penicillins and cephalosporins, requires optically pure D-p-hydroxylphenylglycine and its derivatives as important side-chain precursors. To produce optically pure D-amino acids, microbial D-hydantoinase (E.C. 3.5.2.2) is used for stereospecific hydrolysis of chemically synthesized cyclic hydantoins. We report the apo-crystal structure of D-hydantoinase from B. stearothermophilus SD1 at 3.0 A resolution. The structure has a classic TIM barrel fold. Despite an undetectable similarity in sequence, D-hydantoinase shares a striking structural similarity with the recently solved structure of dihydroorotase. A structural comparison of hydantoinase with dihydroorotase revealed that the catalytic chemistry is conserved, while the substrate recognition is not. This structure provides insight into the stereochemistry of enantioselectivity in hydrolysis and illustrates how the enzyme recognizes stereospecific exocyclic substituents and hydrolyzes hydantoins. It should also provide a rationale for further directed evolution of this enzyme for hydrolysis of new hydantoins with novel exocyclic substituents.


    Organizational Affiliation

    Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Kusung-dong Yusung-gu, Taejon 305-701, Korea.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
D-hydantoinaseA, B, C, D, E, F, G, H460Geobacillus stearothermophilusMutation(s): 0 
EC: 3.5.2
UniProt
Find proteins for Q45515 (Geobacillus stearothermophilus)
Explore Q45515 
Go to UniProtKB:  Q45515
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
KCX
Query on KCX
A, B, C, D, E, F, G, HL-PEPTIDE LINKINGC7 H14 N2 O4LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.263 
  • R-Value Observed: 0.263 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 214.449α = 90
b = 182.89β = 125.27
c = 156.131γ = 90
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
GLRFphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-08-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance