6N0X

Crystal structure of Anaerolinea thermophila mevalonate 5-phosphate decarboxylase complexed with (R)-MVAP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.44 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 

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This is version 1.2 of the entry. See complete history


Literature

Substrate Specificity and Engineering of Mevalonate 5-Phosphate Decarboxylase.

Thomas, S.T.Louie, G.V.Lubin, J.W.Lundblad, V.Noel, J.P.

(2019) ACS Chem Biol 14: 1767-1779

  • DOI: 10.1021/acschembio.9b00322
  • Primary Citation of Related Structures:  
    6N0X, 6N0Y, 6N0Z, 6N10

  • PubMed Abstract: 
  • A bifurcation of the mevalonate (MVA) pathway was recently discovered in bacteria of the Chloroflexi phylum. In this alternative route for the biosynthesis of isopentenylpyrophosphate (IPP), the penultimate step is the decarboxylation of ( R )-mevalonate 5-phosphate (( R )-MVAP) to isopentenyl phosphate (IP), which is followed by the ATP-dependent phosphorylation of IP to IPP catalyzed by isopentenyl phosphate kinase (IPK) ...

    A bifurcation of the mevalonate (MVA) pathway was recently discovered in bacteria of the Chloroflexi phylum. In this alternative route for the biosynthesis of isopentenylpyrophosphate (IPP), the penultimate step is the decarboxylation of ( R )-mevalonate 5-phosphate (( R )-MVAP) to isopentenyl phosphate (IP), which is followed by the ATP-dependent phosphorylation of IP to IPP catalyzed by isopentenyl phosphate kinase (IPK). Notably, the decarboxylation reaction is catalyzed by mevalonate 5-phosphate decarboxylase (MPD), which shares considerable sequence similarity with mevalonate diphosphate decarboxylase (MDD) of the classical MVA pathway. We show that an enzyme originally annotated as an MDD from the Chloroflexi bacterium Anaerolinea thermophila possesses equal catalytic efficiency for ( R )-MVAP and ( R )-mevalonate 5-diphosphate (( R )-MVAPP). Further, the molecular basis for this dual specificity is revealed by near atomic-resolution X-ray crystal structures of A. thermophila MPD/MDD bound to ( R )-MVAP or ( R )-MVAPP. These findings, when combined with sequence and structural comparisons of this bacterial enzyme, functional MDDs, and several putative MPDs, delineate key active-site residues that confer substrate specificity and functionally distinguish MPD and MDD enzyme classes. Extensive sequence analyses identified functional MPDs in the halobacteria class of archaea that had been annotated as MDDs. Finally, no eukaryotic MPD candidates were identified, suggesting the absence of the alternative MVA (altMVA) pathway in all eukaryotes, including, paradoxically, plants, which universally encode a structural and functional homologue of IPK. Additionally, we have developed a viable engineered strain of Saccharomyces cerevisiae as an in vivo metabolic model and a synthetic biology platform for enzyme engineering and terpene biosynthesis in which the classical MVA pathway has been replaced with the altMVA pathway.


    Organizational Affiliation

    Marine Biotechnology Institute, Heita Kamaishi, Iwate 026-0001, Japan. baik-sangho@nite.go.jp



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Diphosphomevalonate decarboxylase
A, B, C, D, E, F
A, B, C, D, E, F
330Anaerolinea thermophila UNI-1Mutation(s): 0 
Gene Names: mvaDANT_19910
EC: 4.1.1.33
UniProt
Find proteins for E8N6F3 (Anaerolinea thermophila (strain DSM 14523 / JCM 11388 / NBRC 100420 / UNI-1))
Explore E8N6F3 
Go to UniProtKB:  E8N6F3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupE8N6F3
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PMV
Query on PMV

Download Ideal Coordinates CCD File 
G [auth A],
H [auth B],
I [auth C],
J [auth D],
K [auth E],
G [auth A],
H [auth B],
I [auth C],
J [auth D],
K [auth E],
L [auth F]
(3R)-3-HYDROXY-3-METHYL-5-(PHOSPHONOOXY)PENTANOIC ACID
C6 H13 O7 P
OKZYCXHTTZZYSK-ZCFIWIBFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.44 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.6α = 90
b = 135.63β = 97.72
c = 105.7γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United StatesEEC-0813570
Howard Hughes Medical Institute (HHMI)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-17
    Type: Initial release
  • Version 1.1: 2019-08-28
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-20
    Changes: Author supporting evidence