3NY7

STAS domain of YchM bound to ACP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.165 

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
  • Primary Citation of Related Structures:  
    3NY7

  • 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 a number of inherited diseases ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Sulfate transporter A118Escherichia coliMutation(s): 0 
Gene Names: ychM
Find proteins for P0AFR2 (Escherichia coli (strain K12))
Explore P0AFR2 
Go to UniProtKB:  P0AFR2
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Acyl carrier protein B78Escherichia coliMutation(s): 0 
Find proteins for P0A6A8 (Escherichia coli (strain K12))
Explore P0A6A8 
Go to UniProtKB:  P0A6A8
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SXM
Query on SXM

Download Ideal Coordinates CCD File 
B
3-{[2-({N-[(2S)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl]sulfanyl}-3-oxopropanoic acid
C14 H25 N2 O10 P S
RNFWAFOKCVKQGB-GFCCVEGCSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.165 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 33.631α = 90
b = 55.867β = 90
c = 113.411γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
SHELXmodel building
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
SHELXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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