Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 26.07 kDa 
• Atom Count: 1967 
• Modelled Residue Count: 223 
• Deposited Residue Count: 226 
• Unique protein chains: 1

1GY0

crystal structure of the eucaryotic mono-ADP-ribosyltransferase ART2.2; CRYSTAL FORM C (P3121)

• DOI: 10.2210/pdb1GY0/pdb

• Classification: TRANSFERASE
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2002-04-15 Released: 2002-09-26 
• Deposition Author(s): Mueller-Dieckmann, C., Schulz, G.E.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free: 0.242 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 

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

• PubMed: 12270706 
• DOI: 10.1016/s0022-2836(02)00818-5
• Primary Citation of Related Structures:  
  1GXY, 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 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

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
T-CELL ECTO-ADP-RIBOSYLTRANSFERASE 2	A	226	Rattus norvegicus	Mutation(s): 0  Gene Names: Art2b, Rt6-b EC: 2.4.2.31 (PDB Primary Data), 3.2.2.5 (UniProt)
UniProt
Find proteins for P20974 (Rattus norvegicus) Explore P20974  Go to UniProtKB:  P20974

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free: 0.242 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.466	α = 90
b = 81.466	β = 90
c = 77.536	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-04-15 
• Released Date: 2002-09-26 
Deposition Author(s): Mueller-Dieckmann, C., Schulz, G.E.

Revision History  

• Version 1.0: 2002-09-26
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance