2LZR

TatA T22P


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural model for the protein-translocating element of the twin-arginine transport system.

Rodriguez, F.Rouse, S.L.Tait, C.E.Harmer, J.De Riso, A.Timmel, C.R.Sansom, M.S.Berks, B.C.Schnell, J.R.

(2013) Proc.Natl.Acad.Sci.USA 110: E1092-E1101

  • DOI: 10.1073/pnas.1219486110
  • Primary Citation of Related Structures:  2LZS

  • PubMed Abstract: 
  • The twin-arginine translocase (Tat) carries out the remarkable process of translocating fully folded proteins across the cytoplasmic membrane of prokaryotes and the thylakoid membrane of plant chloroplasts. Tat is required for bacterial pathogenesis ...

    The twin-arginine translocase (Tat) carries out the remarkable process of translocating fully folded proteins across the cytoplasmic membrane of prokaryotes and the thylakoid membrane of plant chloroplasts. Tat is required for bacterial pathogenesis and for photosynthesis in plants. TatA, the protein-translocating element of the Tat system, is a small transmembrane protein that assembles into ring-like oligomers of variable size. We have determined a structural model of the Escherichia coli TatA complex in detergent solution by NMR. TatA assembly is mediated entirely by the transmembrane helix. The amphipathic helix extends outwards from the ring of transmembrane helices, permitting assembly of complexes with variable subunit numbers. Transmembrane residue Gln8 points inward, resulting in a short hydrophobic pore in the center of the complex. Simulations of the TatA complex in lipid bilayers indicate that the short transmembrane domain distorts the membrane. This finding suggests that TatA facilitates protein transport by sensitizing the membrane to transient rupture.


    Organizational Affiliation

    Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sec-independent protein translocase protein TatA
A
55Escherichia coli (strain K12)Gene Names: tatA (mttA1, yigT)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Sec and Translocase Proteins
Protein: 
TatA twin-arginine translocase, model of oligomeric complex
Find proteins for P69428 (Escherichia coli (strain K12))
Go to UniProtKB:  P69428
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
FME
Query on FME
A
L-PEPTIDE LINKINGC6 H11 N O3 SMET
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LZR Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-20
    Type: Initial release
  • Version 1.1: 2013-04-24
    Type: Database references