4BZA

Crystal structure of TamA POTRA domains 1-3 from E. coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.839 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.173 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Structural Basis of Autotransporter Translocation by Tama

Gruss, F.Zaehringer, F.Jakob, R.P.Burmann, B.M.Hiller, S.Maier, T.

(2013) Nat.Struct.Mol.Biol. 20: 1318

  • DOI: 10.1038/nsmb.2689
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • TamA is an Escherichia coli Omp85 protein involved in autotransporter biogenesis. It comprises a 16-stranded transmembrane β-barrel and three POTRA domains. The 2.3-Å crystal structure reveals that the TamA barrel is closed at the extracellular face ...

    TamA is an Escherichia coli Omp85 protein involved in autotransporter biogenesis. It comprises a 16-stranded transmembrane β-barrel and three POTRA domains. The 2.3-Å crystal structure reveals that the TamA barrel is closed at the extracellular face by a conserved lid loop. The C-terminal β-strand of the barrel forms an unusual inward kink, which weakens the lateral barrel wall and creates a gate for substrate access to the lipid bilayer.


    Organizational Affiliation

    Biozentrum, University of Basel, Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSLOCATION AND ASSEMBLY MODULE TAMA
A
261Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: tamA (yftM, ytfM)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: BETA-BARREL
Sub Group: 
Outer Membrane Autotransporters
Protein: 
TamA Autotransporter, full length
Find proteins for P0ADE4 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ADE4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.839 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.173 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 83.050α = 90.00
b = 83.050β = 90.00
c = 150.660γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
XDSdata reduction
SHELXphasing
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-25
    Type: Initial release
  • Version 1.1: 2013-10-02
    Type: Database references
  • Version 1.2: 2013-11-20
    Type: Database references