3WAI

Crystal structure of the C-terminal globular domain of oligosaccharyltransferase (AfAglB-L, O29867_ARCFU) from Archaeoglobus fulgidus as a MBP fusion

• PDB DOI: https://doi.org/10.2210/pdb3WAI/pdb

• Classification: TRANSFERASE, TRANSPORT PROTEIN
• Organism(s): Escherichia coli K-12, Archaeoglobus fulgidus DSM 4304
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-05-03 Released: 2013-07-17 
• Deposition Author(s): Matsumoto, S., Shimada, A., Kohda, D.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.202 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 

Literature

Crystal structure of the C-terminal globular domain of the third paralog of the Archaeoglobus fulgidus oligosaccharyltransferases

Matsumoto, S., Shimada, A., Kohda, D.

(2013) BMC Struct Biol 13: 11-11

• PubMed: 23815857 
• DOI: https://doi.org/10.1186/1472-6807-13-11
• Primary Citation of Related Structures:  
  3WAI


• PubMed Abstract: 
  

  Protein N-glycosylation occurs in the three domains of life. Oligosaccharyltransferase (OST) transfers an oligosaccharide chain to the asparagine residue in the N-glycosylation sequons. The catalytic subunits of the OST enzyme are STT3 in eukaryotes, AglB in archaea and PglB in eubacteria. The genome of a hyperthermophilic archaeon, Archaeoglobus fulgidus, encodes three paralogous AglB proteins. We previously solved the crystal structures of the C-terminal globular domains of two paralogs, AglB-Short 1 and AglB-Short 2.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 82.97 kDa 
• Atom Count: 6,197 
• Modelled Residue Count: 711 
• Deposited Residue Count: 739 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Maltose-binding periplasmic protein, Transmembrane oligosaccharyl transferase	A	739	Escherichia coli K-12, Archaeoglobus fulgidus DSM 4304 This entity is chimeric	Mutation(s): 0  Gene Names: malE, aglB-L
UniProt
Find proteins for P0AEX9 (Escherichia coli (strain K12)) Explore P0AEX9  Go to UniProtKB:  P0AEX9
Find proteins for O29867 (Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16)) Explore O29867  Go to UniProtKB:  O29867
UniProt Groups	O29867P0AEX9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.202 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 180.239	α = 90
b = 52.93	β = 90.71
c = 78.418	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
MR-Rosetta	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-07-17 
Deposition Author(s): Matsumoto, S., Shimada, A., Kohda, D.

Revision History  

• Version 1.0: 2013-07-17
  Type: Initial release
  
• Version 1.1: 2017-08-16
  Changes: Refinement description, Source and taxonomy
• Version 1.2: 2023-11-08
  Changes: Data collection, Database references, Refinement description