5MT2

Glycoside hydrolase BT_0996


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.128 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Complex pectin metabolism by gut bacteria reveals novel catalytic functions.

Ndeh, D.Rogowski, A.Cartmell, A.Luis, A.S.Basle, A.Gray, J.Venditto, I.Briggs, J.Zhang, X.Labourel, A.Terrapon, N.Buffetto, F.Nepogodiev, S.Xiao, Y.Field, R.A.Zhu, Y.O'Neill, M.A.Urbanowicz, B.R.York, W.S.Davies, G.J.Abbott, D.W.Ralet, M.C.Martens, E.C.Henrissat, B.Gilbert, H.J.

(2017) Nature 544: 65-70

  • DOI: 10.1038/nature21725
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The metabolism of carbohydrate polymers drives microbial diversity in the human gut microbiota. It is unclear, however, whether bacterial consortia or single organisms are required to depolymerize highly complex glycans. Here we show that the gut bac ...

    The metabolism of carbohydrate polymers drives microbial diversity in the human gut microbiota. It is unclear, however, whether bacterial consortia or single organisms are required to depolymerize highly complex glycans. Here we show that the gut bacterium Bacteroides thetaiotaomicron uses the most structurally complex glycan known: the plant pectic polysaccharide rhamnogalacturonan-II, cleaving all but 1 of its 21 distinct glycosidic linkages. The deconstruction of rhamnogalacturonan-II side chains and backbone are coordinated to overcome steric constraints, and the degradation involves previously undiscovered enzyme families and catalytic activities. The degradation system informs revision of the current structural model of rhamnogalacturonan-II and highlights how individual gut bacteria orchestrate manifold enzymes to metabolize the most challenging glycan in the human diet.


    Organizational Affiliation

    Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne NE2 4HH, U.K.,Department of Chemistry, University of York, York YO10 5DD, U.K.,Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA.,Department of Biological Chemistry, John Innes Centre Norwich Research Park, Norwich NR4 7UH, UK.,Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,INRA, UR1268 Biopolymères Interactions Assemblages, 44300 Nantes, France.,Lethbridge Research Centre, Lethbridge, AB, Canada.,INRA, USC 1408 AFMB, F-13288 Marseille, France.,Architecture et Fonction des Macromolécules Biologiques, Centre National de la Recherche Scientifique (CNRS), Aix-Marseille University, F-13288 Marseille, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-galactosidase
A
381Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / NCTC 10582 / E50 / VPI-5482)Mutation(s): 0 
Find proteins for Q8A921 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / NCTC 10582 / E50 / VPI-5482))
Go to UniProtKB:  Q8A921
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.128 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.020α = 90.00
b = 78.565β = 108.36
c = 48.793γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
xia2data reduction
xia2data scaling
SHELXCDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/K020358/1
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/K001949/1
Wellcome TrustUnited KingdomWT097907MA
European Research CouncilUnited Kingdom322820

Revision History 

  • Version 1.0: 2017-03-22
    Type: Initial release
  • Version 1.1: 2017-04-05
    Type: Database references
  • Version 1.2: 2017-04-12
    Type: Database references
  • Version 1.3: 2017-08-30
    Type: Author supporting evidence