1DOE

THE MOBIL FLAVIN OF 4-OH BENZOATE HYDROXYLASE: MOTION OF A PROSTHETIC GROUP REGULATES CATALYSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The mobile flavin of 4-OH benzoate hydroxylase.

Gatti, D.L.Palfey, B.A.Lah, M.S.Entsch, B.Massey, V.Ballou, D.P.Ludwig, M.L.

(1994) Science 266: 110-114

  • Primary Citation of Related Structures:  1DOB, 1DOC, 1DOD

  • PubMed Abstract: 
  • Para-hydroxybenzoate hydroxylase inserts oxygen into substrates by means of the labile intermediate, flavin C(4a)-hydroperoxide. This reaction requires transient isolation of the flavin and substrate from the bulk solvent. Previous crystal structures ...

    Para-hydroxybenzoate hydroxylase inserts oxygen into substrates by means of the labile intermediate, flavin C(4a)-hydroperoxide. This reaction requires transient isolation of the flavin and substrate from the bulk solvent. Previous crystal structures have revealed the position of the substrate para-hydroxybenzoate during oxygenation but not how it enters the active site. In this study, enzyme structures with the flavin ring displaced relative to the protein were determined, and it was established that these or similar flavin conformations also occur in solution. Movement of the flavin appears to be essential for the translocation of substrates and products into the solvent-shielded active site during catalysis.


    Related Citations: 
    • Flavin-Oxygen Derivatives Involved in Hydroxylation by P-Hydroxybenzoate Hydroxylase
      Entsch, B.,Ballou, D.P.,Massey, V.
      (1976) J.Biol.Chem. 251: 2250


    Organizational Affiliation

    Department of Biological Chemistry, University of Michigan, Ann Arbor 48109.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
P-HYDROXYBENZOATE HYDROXYLASE
A
394Pseudomonas aeruginosa (strain ATCC 15692 / PAO1 / 1C / PRS 101 / LMG 12228)Gene Names: pobA
EC: 1.14.13.2
Find proteins for P20586 (Pseudomonas aeruginosa (strain ATCC 15692 / PAO1 / 1C / PRS 101 / LMG 12228))
Go to UniProtKB:  P20586
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
A
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
BR
Query on BR

Download SDF File 
Download CCD File 
A
BROMIDE ION
Br
CPELXLSAUQHCOX-UHFFFAOYSA-M
 Ligand Interaction
DOB
Query on DOB

Download SDF File 
Download CCD File 
A
2,4-DIHYDROXYBENZOIC ACID
C7 H6 O4
UIAFKZKHHVMJGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.164 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 71.900α = 90.00
b = 146.440β = 90.00
c = 88.250γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-11-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other