4N8G

Crystal structure of a TRAP periplasmic solute binding protein from Chromohalobacter salexigens DSM 3043 (Csal_0660), Target EFI-501075, with bound D-alanine-D-alanine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Experimental strategies for functional annotation and metabolism discovery: targeted screening of solute binding proteins and unbiased panning of metabolomes.

Vetting, M.W.Al-Obaidi, N.Zhao, S.San Francisco, B.Kim, J.Wichelecki, D.J.Bouvier, J.T.Solbiati, J.O.Vu, H.Zhang, X.Rodionov, D.A.Love, J.D.Hillerich, B.S.Seidel, R.D.Quinn, R.J.Osterman, A.L.Cronan, J.E.Jacobson, M.P.Gerlt, J.A.Almo, S.C.

(2015) Biochemistry 54: 909-931

  • DOI: https://doi.org/10.1021/bi501388y
  • Primary Citation of Related Structures:  
    4LN5, 4MCO, 4MEV, 4MHF, 4MIJ, 4MNC, 4MNI, 4MX6, 4N15, 4N17, 4N4U, 4N6D, 4N6K, 4N8G, 4N8Y, 4N91, 4NAP, 4NF0, 4NG7, 4NGU, 4NHB, 4NN3, 4NQ8, 4NX1, 4O7M, 4O8M, 4O94, 4OA4, 4OAN, 4OVP, 4OVQ, 4OVR, 4OVS, 4OVT, 4P1E, 4P1L, 4P3L, 4P47, 4P56, 4P8B, 4P9K, 4PAF, 4PAI, 4PAK, 4PBH, 4PBQ, 4PC9, 4PCD, 4PDD, 4PDH

  • PubMed Abstract: 

    The rate at which genome sequencing data is accruing demands enhanced methods for functional annotation and metabolism discovery. Solute binding proteins (SBPs) facilitate the transport of the first reactant in a metabolic pathway, thereby constraining the regions of chemical space and the chemistries that must be considered for pathway reconstruction. We describe high-throughput protein production and differential scanning fluorimetry platforms, which enabled the screening of 158 SBPs against a 189 component library specifically tailored for this class of proteins. Like all screening efforts, this approach is limited by the practical constraints imposed by construction of the library, i.e., we can study only those metabolites that are known to exist and which can be made in sufficient quantities for experimentation. To move beyond these inherent limitations, we illustrate the promise of crystallographic- and mass spectrometric-based approaches for the unbiased use of entire metabolomes as screening libraries. Together, our approaches identified 40 new SBP ligands, generated experiment-based annotations for 2084 SBPs in 71 isofunctional clusters, and defined numerous metabolic pathways, including novel catabolic pathways for the utilization of ethanolamine as sole nitrogen source and the use of d-Ala-d-Ala as sole carbon source. These efforts begin to define an integrated strategy for realizing the full value of amassing genome sequence data.


  • Organizational Affiliation

    Department of Biochemistry, Albert Einstein College of Medicine , Bronx, New York 10461, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TRAP dicarboxylate transporter, DctP subunit
A, B, C, D
352Chromohalobacter israelensis DSM 3043Mutation(s): 0 
Gene Names: Csal_0660
UniProt
Find proteins for Q1QZT7 (Chromohalobacter salexigens (strain ATCC BAA-138 / DSM 3043 / CIP 106854 / NCIMB 13768 / 1H11))
Explore Q1QZT7 
Go to UniProtKB:  Q1QZT7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ1QZT7
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
H [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
DAL
Query on DAL

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
J [auth B]
K [auth B]
M [auth C]
F [auth A],
G [auth A],
J [auth B],
K [auth B],
M [auth C],
N [auth C],
P [auth D],
Q [auth D]
D-ALANINE
C3 H7 N O2
QNAYBMKLOCPYGJ-UWTATZPHSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
E [auth A],
I [auth B],
L [auth C],
O [auth D]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.536α = 90
b = 67.964β = 90
c = 276.012γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-3000data reduction
SHELXSphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-30
    Type: Initial release
  • Version 1.1: 2015-02-25
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Refinement description