2G3N

Crystal structure of the Sulfolobus solfataricus alpha-glucosidase MalA in complex with beta-octyl-glucopyranoside

• PDB DOI: https://doi.org/10.2210/pdb2G3N/pdb

• Classification: HYDROLASE
• Organism(s): Saccharolobus solfataricus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-02-20 Released: 2006-05-02 
• Deposition Author(s): Ernst, H.A., Lo Leggio, L., Willemoes, M., Leonard, G., Blum, P., Larsen, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.213 
• R-Value Work: 0.191 
• R-Value Observed: 0.191 

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 485.24 kDa 
• Atom Count: 34,797 
• Modelled Residue Count: 4,146 
• Deposited Residue Count: 4,158 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-glucosidase	A, B, C, D, E, F	693	Saccharolobus solfataricus	Mutation(s): 0  Gene Names: malA EC: 3.2.1.20
UniProt
Find proteins for P0CD66 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)) Explore P0CD66  Go to UniProtKB:  P0CD66

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BOG	G [auth A], H [auth B], I [auth C], J [auth D], K [auth E], L [auth F]	octyl beta-D-glucopyranoside C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.213 
• R-Value Work: 0.191 
• R-Value Observed: 0.191 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 100.09	α = 90
b = 174.43	β = 109.05
c = 144.03	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
CNS	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-05-02 
Deposition Author(s): Ernst, H.A., Lo Leggio, L., Willemoes, M., Leonard, G., Blum, P., Larsen, S.

Revision History  

• Version 1.0: 2006-05-02
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.4: 2023-08-30
  Changes: Data collection, Database references, Refinement description, Structure summary