3FPL

Chimera of alcohol dehydrogenase by exchange of the cofactor binding domain res 153-295 of C. beijerinckii ADH by T. brockii ADH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.122 
  • R-Value Observed: 0.125 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Biochemical and structural properties of chimeras constructed by exchange of cofactor-binding domains in alcohol dehydrogenases from thermophilic and mesophilic microorganisms

Goihberg, E.Peretz, M.Tel-Or, S.Dym, O.Shimon, L.Frolow, F.Burstein, Y.

(2010) Biochemistry 49: 1943-1953

  • DOI: 10.1021/bi901730x
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The cofactor-binding domains (residues 153-295) of the alcohol dehydrogenases from the thermophile Thermoanaerobacter brockii (TbADH), the mesophilic bacterium Clostridium beijerinckii (CbADH), and the protozoan parasite Entamoeba histolytica (EhADH1 ...

    The cofactor-binding domains (residues 153-295) of the alcohol dehydrogenases from the thermophile Thermoanaerobacter brockii (TbADH), the mesophilic bacterium Clostridium beijerinckii (CbADH), and the protozoan parasite Entamoeba histolytica (EhADH1) have been exchanged. Three chimeras have been constructed. In the first chimera, the cofactor-binding domain of thermophilic TbADH was replaced with the cofactor-binding domain of its mesophilic counterpart CbADH [chimera Chi21((TCT))]. This domain exchange significantly destabilized the parent thermophilic enzyme (DeltaT(1/2) = -18 degrees C). The reverse exchange in CbADH [chimera Chi22((CTC))], however, had little effect on the thermal stability of the parent mesophilic protein. Furthermore, substituting the cofactor-binding domain of TbADH with the homologous domain of EhADH1 [chimera Chi23((TET))] substantially reduced the thermal stability of the thermophilic ADH (DeltaT(1/2) = -51 degrees C) and impeded the oligomerization of the enzyme. All three chimeric proteins and one of their site-directed mutants were crystallized, and their three-dimensional (3D) structures were determined. Comparison of the 3D structures of the chimeras and the chimeric mutant with the structures of their parent ADHs showed no significant changes to their Calpha chains, suggesting that the difference in the thermal stability of the three parent ADHs and their chimeric mutants could be due to a limited number of substitutions located at strategic positions, mainly at the oligomerization interfaces. Indeed, stabilization of the chimeras was achieved, to a significant extent, either by introduction of a proline residue at a strategic position in the major horse liver ADH-type dimerization interface (DeltaT(1/2) = 35 degrees C) or by introduction of intersubunit electrostatic interactions (DeltaT(1/2) = 6 degrees C).


    Organizational Affiliation

    Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NADP-dependent alcohol dehydrogenaseA351Clostridium beijerinckiiThermoanaerobacter brockiiMutation(s): 0 
Gene Names: ADH1
EC: 1.1.1.2 (PDB Primary Data), 1.1.1.80 (UniProt)
Find proteins for P14941 (Thermoanaerobacter brockii)
Explore P14941 
Go to UniProtKB:  P14941
Find proteins for P25984 (Clostridium beijerinckii)
Explore P25984 
Go to UniProtKB:  P25984
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PGE
Query on PGE

Download CCD File 
A
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
CAC
Query on CAC

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A
CACODYLATE ION
C2 H6 As O2
OGGXGZAMXPVRFZ-UHFFFAOYSA-M
 Ligand Interaction
ZN
Query on ZN

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A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

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A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.122 
  • R-Value Observed: 0.125 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 129.477α = 90
b = 129.477β = 90
c = 129.477γ = 90
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
ProDCdata collection
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-01-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2014-01-29
    Changes: Database references
  • Version 1.3: 2017-08-09
    Changes: Refinement description, Source and taxonomy
  • Version 1.4: 2017-11-01
    Changes: Refinement description