4LGN

The structure of Acidothermus cellulolyticus family 74 glycoside hydrolase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.152 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of Acidothermus cellulolyticus family 74 glycoside hydrolase at 1.82 angstrom resolution.

Alahuhta, M.Adney, W.S.Himmel, M.E.Lunin, V.V.

(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 1335-1338

  • DOI: https://doi.org/10.1107/S1744309113030005
  • Primary Citation of Related Structures:  
    4LGN

  • PubMed Abstract: 

    Here, a 1.82 Å resolution X-ray structure of a glycoside hydrolase family 74 (GH74) enzyme from Acidothermus cellulolyticus is reported. The resulting structure was refined to an R factor of 0.150 and an Rfree of 0.196. Structural analysis shows that five related structures have been reported with a secondary-structure similarity of between 75 and 89%. The five similar structures were all either Clostridium thermocellum or Geotrichum sp. M128 GH74 xyloglucanases. Structural analysis indicates that the A. cellulolyticus GH74 enzyme is an endoxyloglucanase, as it lacks a characteristic loop that blocks one end of the active site in exoxyloglucanases. Superimposition with the C. thermocellum GH74 shows that Asp451 and Asp38 are the catalytic residues.


  • Organizational Affiliation

    BioSciences Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cellulose-binding, family II749Acidothermus cellulolyticus 11BMutation(s): 0 
Gene Names: Acel_0618
UniProt
Find proteins for A0LSI1 (Acidothermus cellulolyticus (strain ATCC 43068 / DSM 8971 / 11B))
Explore A0LSI1 
Go to UniProtKB:  A0LSI1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0LSI1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
U [auth A],
V [auth A],
W [auth A],
X [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth A]
I [auth A]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
T [auth A]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
ACT
Query on ACT

Download Ideal Coordinates CCD File 
AA [auth A],
Y [auth A],
Z [auth A]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
FMT
Query on FMT

Download Ideal Coordinates CCD File 
HA [auth A],
IA [auth A],
JA [auth A],
KA [auth A]
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
K
Query on K

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A],
D [auth A]
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
NA
Query on NA

Download Ideal Coordinates CCD File 
BA [auth A]
CA [auth A]
DA [auth A]
EA [auth A]
FA [auth A]
BA [auth A],
CA [auth A],
DA [auth A],
EA [auth A],
FA [auth A],
GA [auth A]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.152 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.761α = 90
b = 78.686β = 90
c = 143.952γ = 90
Software Package:
Software NamePurpose
PROTEUM PLUSdata collection
MOLREPphasing
REFMACrefinement
PROTEUM PLUSdata reduction
PROTEUM PLUSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-12-11
    Type: Initial release
  • Version 1.1: 2014-01-15
    Changes: Database references
  • Version 1.2: 2023-09-20
    Changes: Data collection, Database references, Derived calculations, Refinement description