Crystal structure of Smu.1420 from Streptococcus mutans UA159

Experimental Data Snapshot

  • Resolution: 1.80 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 

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This is version 1.4 of the entry. See complete history


Structural and biochemical characterization of MdaB from cariogenic Streptococcus mutans reveals an NADPH-specific quinone oxidoreductase

Wang, Z.X.Li, L.Dong, Y.H.Su, X.-D.

(2014) Acta Crystallogr D Biol Crystallogr 70: 912-921

  • DOI: https://doi.org/10.1107/S1399004713033749
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The smu.1420 gene from the cariogenic pathogen Streptococcus mutans encodes a putative protein which has sequence homology to NQO [

  • Organizational Affiliation

    Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative oxidoreductase
A, B, C, D
196Streptococcus mutans UA159Mutation(s): 0 
Gene Names: smu.1420SMU_1420
EC: (PDB Primary Data), (UniProt)
Find proteins for Q8DTD1 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159))
Explore Q8DTD1 
Go to UniProtKB:  Q8DTD1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8DTD1
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.80 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.601α = 90
b = 79.118β = 90.01
c = 106.281γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-01-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2014-04-16
    Changes: Database references
  • Version 1.3: 2017-10-04
    Changes: Data collection
  • Version 1.4: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description