2IMP

Crystal structure of lactaldehyde dehydrogenase from E. coli: the ternary complex with lactate (occupancy 0.5) and NADH. Crystals soaked with (L)-Lactate.

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.200 

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This is version 2.0 of the entry. See complete history. 


Literature

Crystal Structure of Lactaldehyde Dehydrogenase from Escherichia coli and Inferences Regarding Substrate and Cofactor Specificity.

Di Costanzo, L., Gomez, G.A., Christianson, D.W.

(2007) J Mol Biol 366: 481-493

  • DOI: 10.1016/j.jmb.2006.11.023
  • Primary Citation of Related Structures:  
    2HG2, 2ILU, 2IMP

  • PubMed Abstract: 

    • Aldehyde dehydrogenases catalyze the oxidation of aldehyde substrates to the corresponding carboxylic acids. Lactaldehyde dehydrogenase from Escherichia coli (aldA gene product, P25553) is an NAD(+)-dependent enzyme implicated in the metabolism of l-fucose and l-rhamnose ...

    Aldehyde dehydrogenases catalyze the oxidation of aldehyde substrates to the corresponding carboxylic acids. Lactaldehyde dehydrogenase from Escherichia coli (aldA gene product, P25553) is an NAD(+)-dependent enzyme implicated in the metabolism of l-fucose and l-rhamnose. During the heterologous expression and purification of taxadiene synthase from the Pacific yew, lactaldehyde dehydrogenase from E. coli was identified as a minor (

    Organizational Affiliation: 

    Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Lactaldehyde dehydrogenaseA479Escherichia coliMutation(s): 1 
EC: 1.2.1.21 (PDB Primary Data), 1.2.1.22 (PDB Primary Data)
UniProt
Find proteins for P25553 (Escherichia coli (strain K12))
Explore P25553 
Go to UniProtKB:  P25553
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25553
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAI
Query on NAI
Download Ideal Coordinates CCD File 
D [auth A]1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE
C21 H29 N7 O14 P2
BOPGDPNILDQYTO-NNYOXOHSSA-N		 Ligand Interaction
SO4
Query on SO4
Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]		SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
LAC
Query on LAC
Download Ideal Coordinates CCD File 
E [auth A]LACTIC ACID
C3 H6 O3
JVTAAEKCZFNVCJ-UWTATZPHSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
OCS
Query on OCS		A L-PEPTIDE LINKINGC3 H7 N O5 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.200 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 143.034α = 90
b = 143.034β = 90
c = 109.364γ = 120
Software Package:
Software NamePurpose
DNAdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-02-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 2.0: 2019-03-27
    Changes: Atomic model, Data collection, Derived calculations, Experimental preparation, Structure summary