4HS9

Methanol tolerant mutant of the Proteus mirabilis lipase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Dieselzymes: development of a stable and methanol tolerant lipase for biodiesel production by directed evolution.

Korman, T.P.Sahachartsiri, B.Charbonneau, D.M.Huang, G.L.Beauregard, M.Bowie, J.U.

(2013) Biotechnol Biofuels 6: 70-70

  • DOI: 10.1186/1754-6834-6-70
  • Primary Citation of Related Structures:  
    4HS9

  • PubMed Abstract: 
  • Biodiesels are methyl esters of fatty acids that are usually produced by base catalyzed transesterification of triacylglyerol with methanol. Some lipase enzymes are effective catalysts for biodiesel synthesis and have many potential advantages over traditional base or acid catalyzed transesterification ...

    Biodiesels are methyl esters of fatty acids that are usually produced by base catalyzed transesterification of triacylglyerol with methanol. Some lipase enzymes are effective catalysts for biodiesel synthesis and have many potential advantages over traditional base or acid catalyzed transesterification. Natural lipases are often rapidly inactivated by the high methanol concentrations used for biodiesel synthesis, however, limiting their practical use. The lipase from Proteus mirabilis is a particularly promising catalyst for biodiesel synthesis as it produces high yields of methyl esters even in the presence of large amounts of water and expresses very well in Escherichia coli. However, since the Proteus mirabilis lipase is only moderately stable and methanol tolerant, these properties need to be improved before the enzyme can be used industrially.


    Organizational Affiliation

    Department of Chemistry and Biochemisty, UCLA-DOE Institute of Genomics and Proteomics, Molecular Biology Institute, University of California, Los Angeles, USA. bowie@mbi.ucla.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LipaseA307Proteus mirabilisMutation(s): 14 
Gene Names: LipA
EC: 3.1.1.3
UniProt
Find proteins for B4EVM3 (Proteus mirabilis (strain HI4320))
Explore B4EVM3 
Go to UniProtKB:  B4EVM3
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PE4
Query on PE4

Download Ideal Coordinates CCD File 
F [auth A]2-{2-[2-(2-{2-[2-(2-ETHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL
C16 H34 O8
PJWQOENWHPEPKI-UHFFFAOYSA-N
 Ligand Interaction
1PE
Query on 1PE

Download Ideal Coordinates CCD File 
E [auth A]PENTAETHYLENE GLYCOL
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
B [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
C [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.099α = 90
b = 54.849β = 90
c = 96.013γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
DENZOdata reduction

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 2012-10-29 
  • Released Date: 2013-05-22 
  • Deposition Author(s): Korman, T.P.

Revision History  (Full details and data files)

  • Version 1.0: 2013-05-22
    Type: Initial release