3Q6B

The high-resolution and new form crystal structure of BamA POTRA4-5 from E.coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.147 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

High-resolution structure of a new crystal form of BamA POTRA4-5 from Escherichia coli.

Zhang, H.Gao, Z.Q.Hou, H.F.Xu, J.H.Li, L.F.Su, X.D.Dong, Y.H.

(2011) Acta Crystallogr.,Sect.F 67: 734-738

  • DOI: 10.1107/S1744309111014254

  • PubMed Abstract: 
  • In Escherichia coli, the BAM complex is employed to mediate correct folding of the outer membrane (OM) proteins into β-barrels and their insertion into the OM. BamA, which is an essential component of the complex, consists of a C-terminal transmembra ...

    In Escherichia coli, the BAM complex is employed to mediate correct folding of the outer membrane (OM) proteins into β-barrels and their insertion into the OM. BamA, which is an essential component of the complex, consists of a C-terminal transmembrane region and five N-terminal polypeptide transport-associated (POTRA) domains. Although deletion studies have shown that each of the POTRA domains plays an important role in the process of BAM complex formation, only POTRA5 is essential for cell viability. Here, the crystal structure of POTRA4-5 has been determined to 1.50 Å resolution with an R factor of 14.7% and an Rfree of 18.9%.


    Organizational Affiliation

    National Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Science, Peking University, Beijing 100871, People's Republic of China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Outer membrane protein assembly complex, YaeT protein
A
189Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: bamA (yaeT, yzzN, yzzY)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: BETA-BARREL
Sub Group: 
Omp85-TpsB Outer Membrane Transporter Superfamily
Protein: 
BamA21-351 POTRA domains (periplasmic fragment, P212121)
Find proteins for P0A940 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A940
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.147 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 137.530α = 90.00
b = 39.005β = 101.00
c = 32.561γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data collection
PHASERphasing
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-10
    Type: Initial release