5NQB

Rabbit Muscle L-lactate dehydrogenase in complex with malonate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The self-inhibitory nature of metabolic networks and its alleviation through compartmentalization.

Alam, M.T.Olin-Sandoval, V.Stincone, A.Keller, M.A.Zelezniak, A.Luisi, B.F.Ralser, M.

(2017) Nat Commun 8: 16018-16018

  • DOI: 10.1038/ncomms16018
  • Primary Citation of Related Structures:  
    5NQQ, 5NQB

  • PubMed Abstract: 
  • Metabolites can inhibit the enzymes that generate them. To explore the general nature of metabolic self-inhibition, we surveyed enzymological data accrued from a century of experimentation and generated a genome-scale enzyme-inhibition network. Enzym ...

    Metabolites can inhibit the enzymes that generate them. To explore the general nature of metabolic self-inhibition, we surveyed enzymological data accrued from a century of experimentation and generated a genome-scale enzyme-inhibition network. Enzyme inhibition is often driven by essential metabolites, affects the majority of biochemical processes, and is executed by a structured network whose topological organization is reflecting chemical similarities that exist between metabolites. Most inhibitory interactions are competitive, emerge in the close neighbourhood of the inhibited enzymes, and result from structural similarities between substrate and inhibitors. Structural constraints also explain one-third of allosteric inhibitors, a finding rationalized by crystallographic analysis of allosterically inhibited L-lactate dehydrogenase. Our findings suggest that the primary cause of metabolic enzyme inhibition is not the evolution of regulatory metabolite-enzyme interactions, but a finite structural diversity prevalent within the metabolome. In eukaryotes, compartmentalization minimizes inevitable enzyme inhibition and alleviates constraints that self-inhibition places on metabolism.


    Organizational Affiliation

    The Molecular Biology of Metabolism Laboratory, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
L-lactate dehydrogenase A chainABCD332Oryctolagus cuniculusMutation(s): 1 
Gene Names: LDHA
EC: 1.1.1.27
Find proteins for P13491 (Oryctolagus cuniculus)
Explore P13491 
Go to UniProtKB:  P13491
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLI
Query on MLI

Download CCD File 
A, B, C, D
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
MLIKi:  27000000   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.806α = 90
b = 76.952β = 96.48
c = 118.858γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom094229/Z/10/Z

Revision History 

  • Version 1.0: 2017-05-03
    Type: Initial release
  • Version 1.1: 2017-07-19
    Changes: Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection