4B0T

Structure of the Pup Ligase PafA of the Prokaryotic Ubiquitin-like Modification Pathway in Complex with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.159 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structures of Pup Ligase Pafa and Depupylase Dop from the Prokaryotic Ubiquitin-Like Modification Pathway.

Ozcelik, D.Barandun, J.Schmitz, N.Sutter, M.Guth, E.Damberger, F.F.Allain, F.H.-T.Ban, N.Weber-Ban, E.

(2012) Nat.Commun. 3: 1014

  • DOI: 10.1038/ncomms2009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pupylation is a posttranslational protein modification occurring in mycobacteria and other actinobacteria that is functionally analogous to ubiquitination. Here we report the crystal structures of the modification enzymes involved in this pathway, th ...

    Pupylation is a posttranslational protein modification occurring in mycobacteria and other actinobacteria that is functionally analogous to ubiquitination. Here we report the crystal structures of the modification enzymes involved in this pathway, the prokaryotic ubiquitin-like protein (Pup) ligase PafA and the depupylase/deamidase Dop. Both feature a larger amino-terminal domain consisting of a central β-sheet packed against a cluster of helices, a fold characteristic for carboxylate-amine ligases, and a smaller C-terminal domain unique to PafA/Dop members. The active site is located on the concave surface of the β-sheet with the nucleotide bound in a deep pocket. A conserved groove leading into the active site could have a role in Pup-binding. Nuclear magnetic resonance and biochemical experiments determine the region of Pup that interacts with PafA and Dop. Structural data and mutational studies identify crucial residues for the catalysis of both enzymes.


    Organizational Affiliation

    ETH Zurich, Institute of Molecular Biology & Biophysics, CH-8093, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PUP--PROTEIN LIGASE
A, B
493Corynebacterium glutamicum (strain ATCC 13032 / DSM 20300 / JCM 1318 / LMG 3730 / NCIMB 10025)Mutation(s): 0 
Gene Names: pafA
EC: 6.3.1.19
Find proteins for Q8NQE1 (Corynebacterium glutamicum (strain ATCC 13032 / DSM 20300 / JCM 1318 / LMG 3730 / NCIMB 10025))
Go to UniProtKB:  Q8NQE1
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A, B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.159 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 62.100α = 90.00
b = 118.810β = 90.00
c = 163.020γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-12
    Type: Initial release