3V3L image
Entry Detail
PDB ID:
3V3L
Keywords:
LIGASE
Title:
Crystal structure of human RNF146 WWE domain in complex with iso-ADPRibose
Biological Source:
Source Organism:
Homo sapiens
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2011-12-13
Release Date:
2012-02-15
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.65 Å
R-Value Free:
0.18
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 31 1 2
3V3L validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:E3 ubiquitin-protein ligase RNF146
Chain IDs:A, B
Chain Length:85
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:Q9NTX7 Pfam ID:PF02825
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MSE A MET SELENOMETHIONINE
Ligand Molecules
V3L
Primary Citation
Recognition of the iso-ADP-ribose moiety in poly(ADP-ribose) by WWE domains suggests a general mechanism for poly(ADP-ribosyl)ation-dependent ubiquitination.
Genes Dev. 26 235 240 (2012)
PMID: 22267412 DOI: 10.1101/gad.182618.111

Abstact

Protein poly(ADP-ribosyl)ation and ubiquitination are two key post-translational modifications regulating many biological processes. Through crystallographic and biochemical analysis, we show that the RNF146 WWE domain recognizes poly(ADP-ribose) (PAR) by interacting with iso-ADP-ribose (iso-ADPR), the smallest internal PAR structural unit containing the characteristic ribose-ribose glycosidic bond formed during poly(ADP-ribosyl)ation. The key iso-ADPR-binding residues we identified are highly conserved among WWE domains. Binding assays further demonstrate that PAR binding is a common function for the WWE domain family. Since many WWE domain-containing proteins are known E3 ubiquitin ligases, our results suggest that protein poly(ADP-ribosyl)ation may be a general mechanism to target proteins for ubiquitination.

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Primary Citation of related structures
3V3L