2EXD

The solution structure of the C-terminal domain of a nfeD homolog from Pyrococcus horikoshii


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The solution structure of the C-terminal domain of NfeD reveals a novel membrane-anchored OB-fold.

Kuwahara, Y.Ohno, A.Morii, T.Yokoyama, H.Matsui, I.Tochio, H.Shirakawa, M.Hiroaki, H.

(2008) Protein Sci 17: 1915-1924

  • DOI: https://doi.org/10.1110/ps.034736.108
  • Primary Citation of Related Structures:  
    2EXD

  • PubMed Abstract: 

    Nodulation formation efficiency D (NfeD) is a member of a class of membrane-anchored ClpP-class proteases. There is a second class of NfeD homologs that lack the ClpP domain. The genes of both NfeD classes usually are part of an operon that also contains a gene for a prokaryotic homolog of stomatin. (Stomatin is a major integral-membrane protein of mammalian erythrocytes.) Such NfeD/stomatin homolog gene pairs are present in more than 290 bacterial and archaeal genomes, and their protein products may be part of the machinery used for quality control of membrane proteins. Herein, we report the structure of the isolated C-terminal domain of PH0471, a Pyrococcus horikoshii NfeD homolog, which lacks the ClpP domain. This C-terminal domain (termed NfeDC) contains a five-strand beta-barrel, which is structurally very similar to the OB-fold (oligosaccharide/oligonucleotide-binding fold) domain. However, there is little sequence similarity between it and previously characterized OB-fold domains. The NfeDC domain lacks the conserved surface residues that are necessary for the binding of an OB-fold domain to DNA/RNA, an ion. Instead, its surface is composed of residues that are uniquely conserved in NfeD homologs and that form the structurally conserved surface turns and beta-bulges. There is also a conserved tryptophan present on the surface. We propose that, in general, NfeDC domains may interact with other spatially proximal membrane proteins and thereby regulate their activities.


  • Organizational Affiliation

    Field of Supramolecular Biology, International Graduate School of Arts and Sciences, Yokohama City University, Tsurumi, Yokohama, Kanagawa 230-0045, Japan.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
nfeD short homolog80Pyrococcus horikoshii OT3Mutation(s): 0 
Gene Names: PH0471
UniProt
Find proteins for O58204 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3))
Explore O58204 
Go to UniProtKB:  O58204
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO58204
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-12-12
    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, Experimental preparation