3FPC

Chimera of alcohol dehydrogenase by exchange of the cofactor binding domain res 153-294 of T. brockii ADH by E. histolytica ADH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.116 

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
  • Primary Citation of Related Structures:  

  • 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 dehydrogenase
A, B, C, D
352Thermoanaerobacter brockiiEntamoeba histolytica
This entity is chimeric
Mutation(s): 0 
Gene Names: adh, ADH1
EC: 1.1.1.80 1.1.1.80
Find proteins for P14941 (Thermoanaerobacter brockii)
Go to UniProtKB:  P14941
Find proteins for P35630 (Entamoeba histolytica)
Go to UniProtKB:  P35630
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OXY
Query on OXY

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A
OXYGEN MOLECULE
O2
MYMOFIZGZYHOMD-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

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A, B, C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

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C, D
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

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B, C, D
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
IMD
Query on IMD

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C
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
CAC
Query on CAC

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A, B, C, D
CACODYLATE ION
dimethylarsinate
C2 H6 As O2
OGGXGZAMXPVRFZ-UHFFFAOYSA-M
 Ligand Interaction
NO3
Query on NO3

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B, D
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.116 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 79.742α = 90.00
b = 82.429β = 99.89
c = 118.249γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
REFMACrefinement
ProDCdata collection
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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