2LAT

Solution structure of a Human minimembrane protein OST4

• PDB DOI:  https://doi.org/10.2210/pdb2LAT/pdb
• BMRB: 17537

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2011-03-21 Released: 2011-06-29 
• Deposition Author(s): Gayen, S., Kang, C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Solution structure of a human minimembrane protein Ost4, a subunit of the oligosaccharyltransferase complex.

Gayen, S., Kang, C.

(2011) Biochem Biophys Res Commun 409: 572-576

• PubMed: 21609714 
• DOI: https://doi.org/10.1016/j.bbrc.2011.05.050
• Primary Citation of Related Structures:  
  2LAT


• PubMed Abstract: 
  

  Oligosaccharyltransferase (OST) is a membrane associated enzyme complex that mediates transfer of an oligosaccharide onto asparagine residue of a protein. Human Ost4 is a small membrane protein and belongs to one of the seven subunits of human OST. This study determined the solution structure of human Ost4 in solvent system using NMR spectroscopy. Ost4 was demonstrated that the residues 5-30 adopt an α-helical structure. A kink structure was observed in the transmembrane domain, which may be important for its function.

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Organizational Affiliation: 

Experimental Therapeutics Center, The Agency for Science, Technology and Research, Singapore 138669, Singapore.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 4.2 kDa 
• Atom Count: 294 
• Modelled Residue Count: 37 
• Deposited Residue Count: 37 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 4	A	37	Homo sapiens	Mutation(s): 0  Gene Names: OST4 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P0C6T2 (Homo sapiens) Explore P0C6T2  Go to UniProtKB:  P0C6T2
PHAROS:  P0C6T2

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-06-29 
Deposition Author(s): Gayen, S., Kang, C.

Revision History  

• Version 1.0: 2011-06-29
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Other