1GXY

crystal structure of the eucaryotic mono-ADP-ribosyltransferase ART2.2; CRYSTAL FORM A (P21)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.71 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the Ecto-Adp-Ribosyl Transferase Art2.2 From Rat

Mueller-Dieckmann, C.Ritter, H.Haag, F.Koch-Nolte, F.Schulz, G.E.

(2002) J.Mol.Biol. 322: 687

  • Primary Citation of Related Structures:  1GXZ, 1GY0

  • PubMed Abstract: 
  • The mammalian extracellular ADP-ribosyl transferases ART1 through ART5 are sequence-related to each other. Among them ART2 is involved in immuno regulation. The variant ART2.2 was expressed in the periplasm of Escherichia coli and crystallized. Its s ...

    The mammalian extracellular ADP-ribosyl transferases ART1 through ART5 are sequence-related to each other. Among them ART2 is involved in immuno regulation. The variant ART2.2 was expressed in the periplasm of Escherichia coli and crystallized. Its structure was determined by X-ray diffraction at 1.7A resolution in one crystal form and at slightly lower resolutions in two others. The active center was indicated by a ligated nicotinamide analogue, which also revealed a small induced-fit. The centerpiece of the chainfold of ART2.2 agrees with those of all bacterial ADP-ribosyl transferases. This correspondence and the nicotinamide position were used to model the binding structure of the whole substrate NAD(+) at ART2.2. Two of the bacterial enzymes are structurally more closely related to ART2.2 while the others are more closely related to the eukaryotic poly(ADP-ribosyl)polymerase. This splits the ADP-ribosyl transferases into two distinct subfamilies. A special feature of ART2.2 is its long N-terminal extension and two disulfide bridges that are far away from the active center. They stabilize the protein against denaturation and presumably also against shearing forces parallel with the membrane where ART2.2 is anchored.


    Organizational Affiliation

    Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg 79104, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
T-CELL ECTO-ADP-RIBOSYLTRANSFERASE 2
A, B
226Rattus norvegicusGene Names: Art2b (Rt6-b)
EC: 2.4.2.31, 3.2.2.5
Find proteins for P20974 (Rattus norvegicus)
Go to UniProtKB:  P20974
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.71 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 46.510α = 90.00
b = 85.640β = 94.60
c = 57.960γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-09-26
    Type: Initial release
  • Version 1.1: 2011-10-19
    Type: Derived calculations, Non-polymer description, Other, Refinement description, Version format compliance