3BW2

Crystal structures and site-directed mutagenesis study of nitroalkane oxidase from Streptomyces ansochromogenes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure and site-directed mutagenesis of a nitroalkane oxidase from Streptomyces ansochromogenes

Li, Y.H.Gao, Z.Q.Hou, H.F.Li, L.Zhang, J.H.Yang, H.H.Dong, Y.H.Tan, H.R.

(2011) Biochem.Biophys.Res.Commun. 405: 344-348

  • DOI: 10.1016/j.bbrc.2010.12.050
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nitroalkane oxidase (NAO) catalyzes neutral nitroalkanes to their corresponding aldehydes or ketones, hydrogen peroxide and nitrite. The crystal structure of NAO from Streptomyces ansochromogenes was determined; it consists of two domains, a TIM barr ...

    Nitroalkane oxidase (NAO) catalyzes neutral nitroalkanes to their corresponding aldehydes or ketones, hydrogen peroxide and nitrite. The crystal structure of NAO from Streptomyces ansochromogenes was determined; it consists of two domains, a TIM barrel domain bound to FMN and C-terminal domain with a novel folding pattern. Site-directed mutagenesis of His179, which is spatially adjacent to FMN, resulted in the loss of enzyme activity, demonstrating that this amino acid residue is important for catalysis. The crystal structure of mutant H179D-nitroethane was also analyzed. Interestingly, Sa-NAO shows the typical function as nitroalkane oxidase but its structure is similar to that of 2-nitropropane dioxygenase. Overall, these results suggest that Sa-NAO is a novel nitroalkane oxidase with TIM barrel structure.


    Organizational Affiliation

    State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
2-nitropropane dioxygenase
A
369Streptomyces ansochromogenesMutation(s): 0 
Gene Names: 2-npdl
Find proteins for Q9FDD4 (Streptomyces ansochromogenes)
Go to UniProtKB:  Q9FDD4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMN
Query on FMN

Download SDF File 
Download CCD File 
A
FLAVIN MONONUCLEOTIDE
RIBOFLAVIN MONOPHOSPHATE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
 Ligand Interaction
MPD
Query on MPD

Download SDF File 
Download CCD File 
A
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.187 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 113.133α = 90.00
b = 113.133β = 90.00
c = 115.739γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
SOLVEphasing
HKL-2000data collection
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-01-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-08-10
    Type: Database references