3CN9

Crystal Structure Analysis of the Carboxylesterase PA3859 from Pseudomonas aeruginosa PAO1- orthorhombic crystal form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Insights into the fatty acid chain length specificity of the carboxylesterase PA3859 from Pseudomonas aeruginosa: A combined structural, biochemical and computational study.

Pesaresi, A.Lamba, D.

(2010) Biochimie 92: 1787-1792

  • DOI: 10.1016/j.biochi.2010.09.001
  • Primary Citation of Related Structures:  
    3CN7, 3CN9

  • PubMed Abstract: 
  • The open reading frame PA3859 of Pseudomonas aeruginosa encodes an intracellular carboxylesterase belonging to a group of microbial enzymes (EC 3.1.1.1) that catalyze the hydrolysis of aliphatic and aromatic esters with a broad substrate specificity. With few exceptions, for this class of enzymes, belonging to the α/β-hydrolase fold superfamily, very little information is available regarding their biochemical activity and in vivo function ...

    The open reading frame PA3859 of Pseudomonas aeruginosa encodes an intracellular carboxylesterase belonging to a group of microbial enzymes (EC 3.1.1.1) that catalyze the hydrolysis of aliphatic and aromatic esters with a broad substrate specificity. With few exceptions, for this class of enzymes, belonging to the α/β-hydrolase fold superfamily, very little information is available regarding their biochemical activity and in vivo function. The X-ray crystal structure of recombinant PA3859 has been determined for two crystal forms (space groups P2(1) and P2(1)2(1)2). The kinetic properties of the enzyme were studied using p-nitrophenyl esters as substrates and data fitted to a surface dilution mixed micelle kinetic model. Enzymatic assays and computational docking simulations, pinpointed the enzyme's preference for esters of palmitic and/or stearic acids and provided insights into the enzyme-substrate favorable binding modes.


    Related Citations: 
    • Isolation, Characterization, and Heterologous Expression of a Carboxylesterase of Pseudomonas aeruginosa PAO1
      Pesaresi, A., Devescovi, G., Lamba, D., Venturi, V., Degrassi, G.
      (2005) Curr Microbiol 50: 102
    • Crystallization, X-ray Diffraction Analysis and Phasing of Carboxylesterase PA3859 from Pseudomonas aeruginosa
      Pesaresi, A., Lamba, D.
      (2005) Biochim Biophys Acta Proteins Proteom 1752: 197

    Organizational Affiliation

    Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Area Science Park - Basovizza, S.S. 14, Km 163.5, I-34149 Trieste, Italy. alessandro.pesaresi@ts.ic.cnr.it



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CarboxylesteraseA, B226Pseudomonas aeruginosaMutation(s): 0 
Gene Names: PA3859
EC: 3.1.1.1
UniProt
Find proteins for Q9HXE7 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9HXE7 
Go to UniProtKB:  Q9HXE7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9HXE7
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2PE
Query on 2PE

Download Ideal Coordinates CCD File 
C [auth A],
E [auth B]
NONAETHYLENE GLYCOL
C18 H38 O10
YZUUTMGDONTGTN-UHFFFAOYSA-N
 Ligand Interaction
PG0
Query on PG0

Download Ideal Coordinates CCD File 
D [auth A]2-(2-METHOXYETHOXY)ETHANOL
C5 H12 O3
SBASXUCJHJRPEV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.423α = 90
b = 96.363β = 90
c = 68.044γ = 90
Software Package:
Software NamePurpose
MAR345data collection
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-08-03
    Changes: Database references
  • Version 1.3: 2017-10-25
    Changes: Advisory, Refinement description