5BR4

E. coli lactaldehyde reductase (FucO) M185C mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.91 Å
  • R-Value Free: 0.147 
  • R-Value Work: 0.129 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Mutations in adenine-binding pockets enhance catalytic properties of NAD(P)H-dependent enzymes.

Cahn, J.K.Baumschlager, A.Brinkmann-Chen, S.Arnold, F.H.

(2016) Protein Eng.Des.Sel. 29: 31-38

  • DOI: 10.1093/protein/gzv057

  • PubMed Abstract: 
  • NAD(P)H-dependent enzymes are ubiquitous in metabolism and cellular processes and are also of great interest for pharmaceutical and industrial applications. Here, we present a structure-guided enzyme engineering strategy for improving catalytic prope ...

    NAD(P)H-dependent enzymes are ubiquitous in metabolism and cellular processes and are also of great interest for pharmaceutical and industrial applications. Here, we present a structure-guided enzyme engineering strategy for improving catalytic properties of NAD(P)H-dependent enzymes toward native or native-like reactions using mutations to the enzyme's adenine-binding pocket, distal to the site of catalysis. Screening single-site saturation mutagenesis libraries identified mutations that increased catalytic efficiency up to 10-fold in 7 out of 10 enzymes. The enzymes improved in this study represent three different cofactor-binding folds (Rossmann, DHQS-like, and FAD/NAD binding) and utilize both NADH and NADPH. Structural and biochemical analyses show that the improved activities are accompanied by minimal changes in other properties (cooperativity, thermostability, pH optimum, uncoupling), and initial tests on two enzymes (ScADH6 and EcFucO) show improved functionality in Escherichia coli.


    Organizational Affiliation

    Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd, MC 210-41, Pasadena, CA 91125, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lactaldehyde reductase
A, B
391Escherichia coli (strain K12)Mutation(s): 1 
Gene Names: fucO
EC: 1.1.1.77
Find proteins for P0A9S1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A9S1
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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Download CCD File 
A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
NAD
Query on NAD

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Download CCD File 
A, B
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.91 Å
  • R-Value Free: 0.147 
  • R-Value Work: 0.129 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 69.697α = 90.00
b = 63.769β = 111.15
c = 91.674γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
XDSdata reduction
REFMACrefinement
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-23
    Type: Initial release