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 
  • R-Value Observed: 0.130 

wwPDB Validation   3D Report Full Report


This is version 1.1 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: https://doi.org/10.1093/protein/gzv057
  • Primary Citation of Related Structures:  
    5BR4

  • 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 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 frances@cheme.caltech.edu.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lactaldehyde reductase
A, B
391Escherichia coliMutation(s): 1 
Gene Names: fucOZ4116ECs3659
EC: 1.1.1.77
UniProt
Find proteins for P0A9S1 (Escherichia coli (strain K12))
Explore P0A9S1 
Go to UniProtKB:  P0A9S1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A9S1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAD
Query on NAD

Download Ideal Coordinates CCD File 
D [auth A],
J [auth B]
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A],
K [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A],
I [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
G [auth A],
H [auth A],
L [auth B],
M [auth B]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.91 Å
  • R-Value Free: 0.147 
  • R-Value Work: 0.129 
  • R-Value Observed: 0.130 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.697α = 90
b = 63.769β = 111.15
c = 91.674γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-12-23
    Type: Initial release
  • Version 1.1: 2023-09-27
    Changes: Data collection, Database references, Derived calculations, Refinement description