1GKL

S954A mutant of the feruloyl esterase module from clostridium thermocellum complexed with ferulic acid

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.160 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.144 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history. 


Literature

The structure of the feruloyl esterase module of xylanase 10B from Clostridium thermocellum provides insights into substrate recognition.

Prates, J.A., Tarbouriech, N., Charnock, S.J., Fontes, C.M., Ferreira, L.M., Davies, G.J.

(2001) Structure 9: 1183-1190

  • DOI: https://doi.org/10.1016/s0969-2126(01)00684-0
  • Primary Citation of Related Structures:  
    1GKK, 1GKL

  • PubMed Abstract: 

    Degradation of the plant cell wall requires the synergistic action of a consortium of predominantly modular enzymes. In Clostridiae, these biocatalysts are organized into a supramolecular assembly termed a "cellulosome." This multienzyme complex possesses, in addition to its well-described cellulolytic activity, an apparatus specific for xylan degradation. Cinnamic acid esterases hydrolyze the ferulate groups involved in the crosslinking of arabinoxylans to lignin and thus play a key role in the degradation of the plant cell wall in addition to having promising industrial and medical applications.

    • Organizational Affiliation: 

    Centro Interdisciplinar de Investigação em Sanidade Animal, Faculdade de Medicina Veteterinária, Pólo Universitário do Alto da Ajuda, 1300-477 Lisboa Codex, Portugal.


Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ENDO-1,4-BETA-XYLANASE Y
A, B
297Acetivibrio thermocellusMutation(s): 1 
EC: 3.2.1.8
UniProt
Find proteins for P51584 (Acetivibrio thermocellus)
Explore P51584 
Go to UniProtKB:  P51584
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP51584
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FER
Query on FER
Download Ideal Coordinates CCD File 
C [auth A],
M [auth B]		3-(4-HYDROXY-3-METHOXYPHENYL)-2-PROPENOIC ACID
C10 H10 O4
KSEBMYQBYZTDHS-HWKANZROSA-N
CD
Query on CD
Download Ideal Coordinates CCD File 
G [auth A]
H [auth A]
I [auth A]
J [auth A]
K [auth A]
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B]
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
GOL
Query on GOL
Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
N [auth B],
O [auth B]		GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT
Query on ACT
Download Ideal Coordinates CCD File 
F [auth A],
P [auth B]		ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.160 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.144 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.101α = 90
b = 108.233β = 90
c = 112.964γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-12-13
    Type: Initial release
  • Version 1.1: 2011-09-07
    Changes: Database references, Derived calculations, Non-polymer description, Other, Structure summary, Version format compliance
  • Version 1.2: 2019-10-09
    Changes: Data collection, Database references, Other