3NY7

STAS domain of YchM bound to ACP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.922 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of a SLC26 Anion Transporter STAS Domain in Complex with Acyl Carrier Protein: Implications for E. coli YchM in Fatty Acid Metabolism.

Babu, M.Greenblatt, J.F.Emili, A.Strynadka, N.C.Reithmeier, R.A.Moraes, T.F.

(2010) Structure 18: 1450-1462

  • DOI: 10.1016/j.str.2010.08.015

  • PubMed Abstract: 
  • Escherichia coli YchM is a member of the SLC26 (SulP) family of anion transporters with an N-terminal membrane domain and a C-terminal cytoplasmic STAS domain. Mutations in human members of the SLC26 family, including their STAS domain, are linked to ...

    Escherichia coli YchM is a member of the SLC26 (SulP) family of anion transporters with an N-terminal membrane domain and a C-terminal cytoplasmic STAS domain. Mutations in human members of the SLC26 family, including their STAS domain, are linked to a number of inherited diseases. Herein, we describe the high-resolution crystal structure of the STAS domain from E. coli YchM isolated in complex with acyl-carrier protein (ACP), an essential component of the fatty acid biosynthesis (FAB) pathway. A genome-wide genetic interaction screen showed that a ychM null mutation is synthetically lethal with mutant alleles of genes (fabBDHGAI) involved in FAB. Endogenous YchM also copurified with proteins involved in fatty acid metabolism. Furthermore, a deletion strain lacking ychM showed altered cellular bicarbonate incorporation in the presence of NaCl and impaired growth at alkaline pH. Thus, identification of the STAS-ACP complex suggests that YchM sequesters ACP to the bacterial membrane linking bicarbonate transport with fatty acid metabolism.


    Organizational Affiliation

    Banting and Best Department of Medical Research, Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, ON M5S3E1, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sulfate transporter
A
118Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: dauA (ychM)
Find proteins for P0AFR2 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AFR2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Acyl carrier protein
B
78Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: acpP
Find proteins for P0A6A8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6A8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
SXM
Query on SXM

Download SDF File 
Download CCD File 
B
3-{[2-({N-[(2S)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl]sulfanyl}-3-oxopropanoic acid
THIOMALONIC ACID S-{2-[3-(2-HYDROXY-3,3-DIMETHYL-4-PHOSPHONOOXY-BUTYRYLAMINO)-PROPIONYLAMINO]-ETHYL} ESTER
C14 H25 N2 O10 P S
RNFWAFOKCVKQGB-GFCCVEGCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.922 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 33.631α = 90.00
b = 55.867β = 90.00
c = 113.411γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
SHELXmodel building
PHENIXrefinement
MAR345dtbdata collection
SHELXphasing
SHARPphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-12-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance