5MLH

Plantago Major multifunctional oxidoreductase in complex with 8-oxogeranial and NADP+


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

A multisubstrate reductase from Plantago major: structure-function in the short chain reductase superfamily.

Fellows, R.Russo, C.M.Silva, C.S.Lee, S.G.Jez, J.M.Chisholm, J.D.Zubieta, C.Nanao, M.H.

(2018) Sci Rep 8: 14796-14796

  • DOI: https://doi.org/10.1038/s41598-018-32967-1
  • Primary Citation of Related Structures:  
    5MLH, 5MLM, 5MLR, 6GSD

  • PubMed Abstract: 

    The short chain dehydrogenase/reductase superfamily (SDR) is a large family of NAD(P)H-dependent enzymes found in all kingdoms of life. SDRs are particularly well-represented in plants, playing diverse roles in both primary and secondary metabolism. In addition, some plant SDRs are also able to catalyse a reductive cyclisation reaction critical for the biosynthesis of the iridoid backbone that contains a fused 5 and 6-membered ring scaffold. Mining the EST database of Plantago major, a medicinal plant that makes iridoids, we identified a putative 5β-progesterone reductase gene, PmMOR (P. major multisubstrate oxido-reductase), that is 60% identical to the iridoid synthase gene from Catharanthus roseus. The PmMOR protein was recombinantly expressed and its enzymatic activity assayed against three putative substrates, 8-oxogeranial, citral and progesterone. The enzyme demonstrated promiscuous enzymatic activity and was able to not only reduce progesterone and citral, but also to catalyse the reductive cyclisation of 8-oxogeranial. The crystal structures of PmMOR wild type and PmMOR mutants in complex with NADP + or NAD + and either 8-oxogeranial, citral or progesterone help to reveal the substrate specificity determinants and catalytic machinery of the protein. Site-directed mutagenesis studies were performed and provide a foundation for understanding the promiscuous activity of the enzyme.


  • Organizational Affiliation

    European Synchrotron Radiation Facility, Structural Biology Group, 71 Avenue des Martyrs, F-38000, Grenoble, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Progesterone 5-beta-reductase389Plantago majorMutation(s): 0 
EC: 1.1.1.145
UniProt
Find proteins for D6N9X1 (Plantago major)
Explore D6N9X1 
Go to UniProtKB:  D6N9X1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD6N9X1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP

Download Ideal Coordinates CCD File 
E [auth A]NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
XOG
Query on XOG

Download Ideal Coordinates CCD File 
C [auth A](2E,6E)-2,6-dimethylocta-2,6-dienedial
C10 H14 O2
GRHWFPUCRVCMRY-TXFIJWAUSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
F [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
NA
Query on NA

Download Ideal Coordinates CCD File 
B [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.52α = 90
b = 79.52β = 90
c = 138.2γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
BioStructXFranceN283570
French National Research AgencyFranceATIP Chloe Zubieta

Revision History  (Full details and data files)

  • Version 1.0: 2018-08-01
    Type: Initial release
  • Version 1.1: 2018-10-17
    Changes: Data collection, Database references, Structure summary
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary