4PCV

The structure of BdcA (YjgI) from E. coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

BdcA, a protein important for Escherichia coli biofilm dispersal, is a short-chain dehydrogenase/reductase that binds specifically to NADPH.

Lord, D.M.Baran, A.U.Wood, T.K.Peti, W.Page, R.

(2014) Plos One 9: e105751-e105751

  • DOI: 10.1371/journal.pone.0105751

  • PubMed Abstract: 
  • The Escherichia coli protein BdcA (previously referred to as YjgI) plays a key role in the dispersal of cells from bacterial biofilms, and its constitutive activation provides an attractive therapeutic target for dismantling these communities. In ord ...

    The Escherichia coli protein BdcA (previously referred to as YjgI) plays a key role in the dispersal of cells from bacterial biofilms, and its constitutive activation provides an attractive therapeutic target for dismantling these communities. In order to investigate the function of BdcA at a molecular level, we integrated structural and functional studies. Our 2.05 Å structure of BdcA shows that it is a member of the NAD(P)(H)-dependent short-chain dehydrogenase/reductase (SDR) superfamily. Structural comparisons with other members of the SDR family suggested that BdcA binds NADP(H). This was demonstrated experimentally using thermal denaturation studies, which showed that BcdA binds specifically to NADPH. Subsequent ITC experiments further confirmed this result and reported a Kd of 25.9 µM. Thus, BdcA represents the newest member of the limited number of oxidoreductases shown to be involved in quorum sensing and biofilm dispersal.


    Organizational Affiliation

    Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island, United States of America.,Department of Molecular Pharmacology, Physiology and Biotechnology and Department of Chemistry, Brown University, Providence, Rhode Island, United States of America.,Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island, United States of America; Graduate Program in Molecular Pharmacology and Physiology, Brown University, Providence, Rhode Island, United States of America.,Department of Chemical Engineering and Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, Pennsylvania, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BdcA (YjgI)
A, B
240Escherichia coli P0299438.9Mutation(s): 0 
Find proteins for A0A0J9X1Z4 (Escherichia coli P0299438.9)
Go to UniProtKB:  A0A0J9X1Z4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PGE
Query on PGE

Download SDF File 
Download CCD File 
A, B
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
1PE
Query on 1PE

Download SDF File 
Download CCD File 
B
PENTAETHYLENE GLYCOL
PEG400
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.201 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 131.058α = 90.00
b = 52.461β = 118.06
c = 69.807γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (United States)United StatesMCB0952550

Revision History 

  • Version 1.0: 2015-03-11
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence, Derived calculations, Other, Source and taxonomy