4Z0P

Crystal structure of NADPH-dependent glyoxylate/hydroxypyruvate reductase SMc02828 (SmGhrA) from Sinorhizobium meliloti in complex with NADPH and oxalate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.150 
  • R-Value Work: 0.134 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural, Biochemical, and Evolutionary Characterizations of Glyoxylate/Hydroxypyruvate Reductases Show Their Division into Two Distinct Subfamilies.

Kutner, J.Shabalin, I.G.Matelska, D.Handing, K.B.Gasiorowska, O.Sroka, P.Gorna, M.W.Ginalski, K.Wozniak, K.Minor, W.

(2018) Biochemistry 57: 963-977

  • DOI: 10.1021/acs.biochem.7b01137
  • Primary Citation of Related Structures:  
  • Also Cited By: 6BII

  • PubMed Abstract: 
  • The d-2-hydroxyacid dehydrogenase (2HADH) family illustrates a complex evolutionary history with multiple lateral gene transfers and gene duplications and losses. As a result, the exact functional annotation of individual members can be extrapolated ...

    The d-2-hydroxyacid dehydrogenase (2HADH) family illustrates a complex evolutionary history with multiple lateral gene transfers and gene duplications and losses. As a result, the exact functional annotation of individual members can be extrapolated to a very limited extent. Here, we revise the previous simplified view on the classification of the 2HADH family; specifically, we show that the previously delineated glyoxylate/hydroxypyruvate reductase (GHPR) subfamily consists of two evolutionary separated GHRA and GHRB subfamilies. We compare two representatives of these subfamilies from Sinorhizobium meliloti (SmGhrA and SmGhrB), employing a combination of biochemical, structural, and bioinformatics approaches. Our kinetic results show that both enzymes reduce several 2-ketocarboxylic acids with overlapping, but not equivalent, substrate preferences. SmGhrA and SmGhrB show highest activity with glyoxylate and hydroxypyruvate, respectively; in addition, only SmGhrB reduces 2-keto-d-gluconate, and only SmGhrA reduces pyruvate (with low efficiency). We present nine crystal structures of both enzymes in apo forms and in complexes with cofactors and substrates/substrate analogues. In particular, we determined a crystal structure of SmGhrB with 2-keto-d-gluconate, which is the biggest substrate cocrystallized with a 2HADH member. The structures reveal significant differences between SmGhrA and SmGhrB, both in the overall structure and within the substrate-binding pocket, offering insight into the molecular basis for the observed substrate preferences and subfamily differences. In addition, we provide an overview of all GHRA and GHRB structures complexed with a ligand in the active site.


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia , 1340 Jefferson Park Avenue, Charlottesville, Virginia 22908, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NAD-dependent dehydrogenase
A
320Rhizobium meliloti (strain 1021)Mutation(s): 0 
Find proteins for Q92T34 (Rhizobium meliloti (strain 1021))
Go to UniProtKB:  Q92T34
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

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Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
HEPES
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
OXD
Query on OXD

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Download CCD File 
A
OXALIC ACID
C2 H2 O4
MUBZPKHOEPUJKR-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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

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

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Download CCD File 
A
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 108.099α = 90.00
b = 108.099β = 90.00
c = 80.226γ = 120.00
Software Package:
Software NamePurpose
MOLREPphasing
HKL-3000data collection
PDB_EXTRACTdata extraction
HKL-3000phasing
HKL-3000data reduction
HKL-3000data scaling
BLU-MAXdata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-08
    Type: Initial release
  • Version 1.1: 2015-04-29
    Type: Structure summary
  • Version 1.2: 2017-11-22
    Type: Derived calculations, Other, Refinement description, Source and taxonomy, Structure summary
  • Version 1.3: 2018-05-16
    Type: Data collection, Database references, Experimental preparation, Structure summary