5MSY

Glycoside hydrolase BT_1012


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 2.0 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: https://doi.org/10.1038/nature21725
  • Primary Citation of Related Structures:  
    5MQM, 5MQN, 5MQO, 5MQR, 5MQS, 5MSX, 5MSY, 5MT2, 5MUI, 5MUJ, 5MWK

  • 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 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.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glycoside hydrolase
A, B, C
463Bacteroides thetaiotaomicron VPI-5482Mutation(s): 0 
Gene Names: BT_1012
UniProt
Find proteins for Q8A905 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50))
Explore Q8A905 
Go to UniProtKB:  Q8A905
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8A905
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
N [auth B],
X [auth C],
Y [auth C]
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
NH3
Query on NH3

Download Ideal Coordinates CCD File 
AA [auth C]
BA [auth C]
CA [auth C]
F [auth A]
G [auth A]
AA [auth C],
BA [auth C],
CA [auth C],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
Z [auth C]
AMMONIA
H3 N
QGZKDVFQNNGYKY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 262.455α = 90
b = 262.455β = 90
c = 184.883γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHASERphasing
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilUnited Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-22
    Type: Initial release
  • Version 1.1: 2017-04-05
    Changes: Database references
  • Version 1.2: 2017-04-12
    Changes: Database references
  • Version 2.0: 2024-01-17
    Changes: Atomic model, Author supporting evidence, Data collection, Database references, Refinement description