1NPX

STRUCTURE OF NADH PEROXIDASE FROM STREPTOCOCCUS FAECALIS 10C1 REFINED AT 2.16 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Work: 0.177 
  • R-Value Observed: 0.177 

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This is version 1.2 of the entry. See complete history


Literature

Structure of NADH peroxidase from Streptococcus faecalis 10C1 refined at 2.16 A resolution.

Stehle, T.Ahmed, S.A.Claiborne, A.Schulz, G.E.

(1991) J Mol Biol 221: 1325-1344

  • Primary Citation of Related Structures:  
    1NPX

  • PubMed Abstract: 

    The crystal structure of NADH peroxidase (EC 1.11.1.1) from Streptococcus faecalis 10C1 (Enterococcus faecalis) has been refined to a resolution of 2.16 A using the simulated annealing method. The final crystallographic R-factor is 17.7% for all data in the resolution range 7 to 2.16 A. The standard deviations are 0.015 A in bond lengths and 3.0 degrees in bond angles for the final model, which includes all 447 amino acid residues, one FAD and 369 water molecules. The enzyme is a symmetrical tetramer with point group D2; the symmetry is crystallographic. The redox center of the enzyme consists of FAD and a cysteine (Cys42), which forms a sulfenic acid (Cys-SOH) in its oxidized state. A histidine (His10) close to Cys42 is likely to act as an active-site base. In the analyzed crystal, the enzyme was in a non-native oxidation state with Cys42 oxidized to a sulfonic acid Cys-SO3H. The chain fold of NADH peroxidase is similar to those of disulfide oxidoreductases. A comparison with glutathione reductase, a representative of this enzyme family, is given.


  • Organizational Affiliation

    Institut für Organische Chemie und Biochemie der Universität, Freiburg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NADH PEROXIDASE447Enterococcus faecalisMutation(s): 0 
EC: 1.11.1.1
UniProt
Find proteins for P37062 (Enterococcus faecalis (strain ATCC 700802 / V583))
Explore P37062 
Go to UniProtKB:  P37062
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP37062
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download Ideal Coordinates CCD File 
B [auth A]FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
OCS
Query on OCS
A
L-PEPTIDE LINKINGC3 H7 N O5 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Work: 0.177 
  • R-Value Observed: 0.177 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.2α = 90
b = 134.5β = 90
c = 145.9γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance