1RTT

Crystal structure determination of a putative NADH-dependent reductase using sulfur anomalous signal


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.28 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure determination of an FMN reductase from Pseudomonas aeruginosa PA01 using sulfur anomalous signal.

Agarwal, R.Bonanno, J.B.Burley, S.K.Swaminathan, S.

(2006) Acta Crystallogr D Biol Crystallogr 62: 383-391

  • DOI: 10.1107/S0907444906001600
  • Primary Citation of Related Structures:  
    1X77, 1RTT

  • PubMed Abstract: 
  • The availability of high-intensity synchrotron facilities, technological advances in data-collection techniques and improved data-reduction and crystallographic software have ushered in a new era in high-throughput macromolecular crystallography. Her ...

    The availability of high-intensity synchrotron facilities, technological advances in data-collection techniques and improved data-reduction and crystallographic software have ushered in a new era in high-throughput macromolecular crystallography. Here, the de novo automated crystal structure determination at 1.28 A resolution of an NAD(P)H-dependent FMN reductase flavoprotein from Pseudomonas aeruginosa PA01-derived protein Q9I4D4 using the anomalous signal from an unusually small number of S atoms is reported. Although this protein lacks the flavodoxin key fingerprint motif [(T/S)XTGXT], it has been confirmed to bind flavin mononucleotide and the binding site was identified via X-ray crystallography. This protein contains a novel flavin mononucleotide-binding site GSLRSGSYN, which has not been previously reported. Detailed statistics pertaining to sulfur phasing and other factors contributing to structure determination are discussed. Structural comparisons of the apoenzyme and the protein complexed with flavin mononucleotide show conformational changes on cofactor binding. NADPH-dependent activity has been confirmed with biochemical assays.


    Organizational Affiliation

    Biology Department, Brookhaven National Laboratory, Upton, NY 11973, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
conserved hypothetical proteinA193Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: PA1204
EC: 1
Find proteins for Q9I4D4 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9I4D4 
Go to UniProtKB:  Q9I4D4
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.28 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.071α = 90
b = 70.386β = 90
c = 85.382γ = 90
Software Package:
Software NamePurpose
CNSrefinement
CBASSdata collection
HKL-2000data scaling
PHASESphasing
SOLVEphasing
SHARPphasing
ARP/wARPmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-08-17
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance