4QJK

Crystal structure of M. tuberculosis phosphopantetheinyl transferase PptT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure, biochemistry, and inhibition of essential 4'-phosphopantetheinyl transferases from two species of mycobacteria.

Vickery, C.R.Kosa, N.M.Casavant, E.P.Duan, S.Noel, J.P.Burkart, M.D.

(2014) Acs Chem.Biol. 9: 1939-1944

  • DOI: 10.1021/cb500263p
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • 4'-Phosphopantetheinyl transferases (PPTase) post-translationally modify carrier proteins with a phosphopantetheine moiety, an essential reaction in all three domains of life. In the bacterial genus Mycobacteria, the Sfp-type PPTase activates pathway ...

    4'-Phosphopantetheinyl transferases (PPTase) post-translationally modify carrier proteins with a phosphopantetheine moiety, an essential reaction in all three domains of life. In the bacterial genus Mycobacteria, the Sfp-type PPTase activates pathways necessary for the biosynthesis of cell wall components and small molecule virulence factors. We solved the X-ray crystal structures and biochemically characterized the Sfp-type PPTases from two of the most prevalent Mycobacterial pathogens, PptT of M. tuberculosis and MuPPT of M. ulcerans. Structural analyses reveal significant differences in cofactor binding and active site composition when compared to previously characterized Sfp-type PPTases. Functional analyses including the efficacy of Sfp-type PPTase-specific inhibitors also suggest that the Mycobacterial Sfp-type PPTases can serve as therapeutic targets against Mycobacterial infections.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphopantetheinyl transferase PptT
A
235Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: pptT
Find proteins for O33336 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  O33336
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
COA
Query on COA

Download SDF File 
Download CCD File 
A
COENZYME A
C21 H36 N7 O16 P3 S
RGJOEKWQDUBAIZ-IBOSZNHHSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.170 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 99.860α = 90.00
b = 121.505β = 90.00
c = 48.780γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
AutoSolphasing
SCALAdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
BOSdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-16
    Type: Initial release
  • Version 1.1: 2014-10-01
    Type: Database references
  • Version 1.2: 2017-11-22
    Type: Refinement description