Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 97.43 kDa 
• Atom Count: 6676 
• Modelled Residue Count: 768 
• Deposited Residue Count: 784 
• Unique protein chains: 1

3LCM

Crystal structure of Smu.1420 from Streptococcus mutans UA159

• PDB DOI: 10.2210/pdb3LCM/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Streptococcus mutans UA159
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-01-11 Released: 2011-01-12 
• Deposition Author(s): Wang, Z.X., Su, X.-D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.188 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 

Literature

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

• PubMed: 24699637 
• DOI: 10.1107/S1399004713033749
• Primary Citation of Related Structures:  
  3LCM


• PubMed Abstract: 
  

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

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Organizational Affiliation: 

State Key Laboratory of Protein and Plant Gene Research, and Biodynamic Optical Imaging Center (BIOPIC), Peking University, Beijing 100871, People's Republic of China.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative oxidoreductase	A, B, C, D	196	Streptococcus mutans UA159	Mutation(s): 0  Gene Names: smu.1420, SMU_1420 EC: 1.6.99.2 (PDB Primary Data), 1.6.5.2 (UniProt)
UniProt
Find proteins for Q8DTD1 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159)) Explore Q8DTD1  Go to UniProtKB:  Q8DTD1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	E [auth A], G [auth B], I [auth C], L [auth D]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
NAP	F [auth A], H [auth B], J [auth C], K [auth C]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• 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 = 50.601	α = 90
b = 79.118	β = 90.01
c = 106.281	γ = 90

Software Package:

Software Name	Purpose
MAR345dtb	data collection
MOLREP	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-01-11 
• Released Date: 2011-01-12 
Deposition Author(s): Wang, Z.X., Su, X.-D.

Revision History  

• 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