4B4A

Structure of the TatC core of the twin arginine protein translocation system


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.254 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the Tatc Core of the Twin-Arginine Protein Transport System.

Rollauer, S.E.Tarry, M.J.Graham, J.E.Jaaskelainen, M.Jager, F.Johnson, S.Krehenbrink, M.Liu, S.Lukey, M.J.Marcoux, J.Mcdowell, M.A.Rodriguez, F.Roversi, P.Stansfeld, P.J.Robinson, C.V.Sansom, M.S.P.Palmer, T.Hogbom, M.Berks, B.C.Lea, S.M.

(2012) Nature 49: 210

  • DOI: https://doi.org/10.1038/nature11683
  • Primary Citation of Related Structures:  
    4B4A

  • PubMed Abstract: 

    The twin-arginine translocation (Tat) pathway is one of two general protein transport systems found in the prokaryotic cytoplasmic membrane and is conserved in the thylakoid membrane of plant chloroplasts. The defining, and highly unusual, property of the Tat pathway is that it transports folded proteins, a task that must be achieved without allowing appreciable ion leakage across the membrane. The integral membrane TatC protein is the central component of the Tat pathway. TatC captures substrate proteins by binding their signal peptides. TatC then recruits TatA family proteins to form the active translocation complex. Here we report the crystal structure of TatC from the hyperthermophilic bacterium Aquifex aeolicus. This structure provides a molecular description of the core of the Tat translocation system and a framework for understanding the unique Tat transport mechanism.


  • Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SEC-INDEPENDENT PROTEIN TRANSLOCASE PROTEIN TATC249Aquifex aeolicusMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for O67305 (Aquifex aeolicus (strain VF5))
Explore O67305 
Go to UniProtKB:  O67305
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO67305
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
LMN
Query on LMN

Download Ideal Coordinates CCD File 
B [auth A]Lauryl Maltose Neopentyl Glycol
C47 H88 O22
MADJBYLAYPCCOO-XYPZXBMFSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.254 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 123.52α = 90
b = 123.52β = 90
c = 216.41γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHENIX.HYSSphasing
autoSHARPphasing
BUSTERrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2012-12-05
    Type: Initial release
  • Version 1.1: 2012-12-12
    Changes: Database references
  • Version 1.2: 2012-12-19
    Changes: Database references