2GLW

The solution structure of PHS018 from pyrococcus horikoshii


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 22 
  • Selection Criteria: LOWEST RESTRAINT VIOLATIONS 

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This is version 1.3 of the entry. See complete history


Literature

Common evolutionary origin of swapped-hairpin and double-psi beta barrels

Coles, M.Hulko, M.Djuranovic, S.Truffault, V.Koretke, K.Martin, J.Lupas, A.N.

(2006) Structure 14: 1489-1498

  • DOI: https://doi.org/10.1016/j.str.2006.08.005
  • Primary Citation of Related Structures:  
    2GLW

  • PubMed Abstract: 

    The core of swapped-hairpin and double-psi beta barrels is formed by duplication of a conserved betaalphabeta element, suggesting a common evolutionary origin. The path connecting the two folds is unclear as the two barrels are not interconvertible by a simple topological modification, such as circular permutation. We have identified a protein family whose sequence properties are intermediate to the two folds. The structure of one of these proteins, Pyrococcus horikoshii PhS018, is also built by duplication of the conserved betaalphabeta element but shows yet a third topology, which we name the RIFT barrel. This topology is widespread in the structure database and spans three folds of the SCOP classification, including the middle domain of EF-Tu and the N domain of F1-ATPase. We propose that swapped-hairpin beta barrels arose from an ancestral RIFT barrel by strand invasion and double-psi beta barrels by a strand swap. We group the three barrel types into a metafold, the cradle-loop barrels.


  • Organizational Affiliation

    Department of Protein Evolution, Max-Planck-Institute for Developmental Biology, 72076 Tübingen, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
92aa long hypothetical protein92Pyrococcus horikoshii OT3Mutation(s): 0 
Gene Names: PHS018
UniProt
Find proteins for O73971 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3))
Explore O73971 
Go to UniProtKB:  O73971
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO73971
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 22 
  • Selection Criteria: LOWEST RESTRAINT VIOLATIONS 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-12-05
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references