1F0Z

SOLUTION STRUCTURE OF THIS, THE SULFUR CARRIER PROTEIN IN E.COLI THIAMIN BIOSYNTHESIS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of ThiS and implications for the evolutionary roots of ubiquitin.

Wang, C.Xi, J.Begley, T.P.Nicholson, L.K.

(2001) Nat.Struct.Mol.Biol. 8: 47-51

  • DOI: 10.1038/83041

  • PubMed Abstract: 
  • ThiS is a sulfur carrier protein that plays a central role in thiamin biosynthesis in Escherichia coli. Here we report the solution NMR structure of ThiS, the first for this class of sulfur carrier proteins. Although ThiS shares only 14% sequence ide ...

    ThiS is a sulfur carrier protein that plays a central role in thiamin biosynthesis in Escherichia coli. Here we report the solution NMR structure of ThiS, the first for this class of sulfur carrier proteins. Although ThiS shares only 14% sequence identity with ubiquitin, it possesses the ubiquitin fold. This structural homology, combined with established functional similarities involving sulfur chemistry, demonstrates that the eukaryotic ubiquitin and the prokaryotic ThiS evolved from a common ancestor. This illustrates how structure determination is essential in establishing evolutionary links between proteins in which structure and function have been conserved through eons of evolution despite loss of sequence identity. The ThiS structure reveals both hydrophobic and electrostatic surface features that are likely determinants for interactions with binding partners. Comparison with surface features of ubiquitin and ubiquitin homologs SUMO-1, RUB-1 and NEDD8 suggest how Nature has utilized this single fold to incorporate similar chemistry into a broad array of highly specific biological processes.


    Organizational Affiliation

    Department of Molecular Biology and Genetics, 239 Biotechnology Building, Cornell University, Ithaca, New York 14853, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THIS PROTEIN
A
66Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: thiS (thiG1)
Find proteins for O32583 (Escherichia coli (strain K12))
Go to UniProtKB:  O32583
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 1F0Z Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-01-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance