2K2D

Solution NMR structure of C-terminal domain of human pirh2. Northeast Structural Genomics Consortium (NESG) target HT2C


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular basis of Pirh2-mediated p53 ubiquitylation.

Sheng, Y.Laister, R.C.Lemak, A.Wu, B.Tai, E.Duan, S.Lukin, J.Sunnerhagen, M.Srisailam, S.Karra, M.Benchimol, S.Arrowsmith, C.H.

(2008) Nat.Struct.Mol.Biol. 15: 1334-1342

  • DOI: 10.1038/nsmb.1521
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pirh2 (p53-induced RING-H2 domain protein; also known as Rchy1) is an E3 ubiquitin ligase involved in a negative-feedback loop with p53. Using NMR spectroscopy, we show that Pirh2 is a unique cysteine-rich protein comprising three modular domains. Th ...

    Pirh2 (p53-induced RING-H2 domain protein; also known as Rchy1) is an E3 ubiquitin ligase involved in a negative-feedback loop with p53. Using NMR spectroscopy, we show that Pirh2 is a unique cysteine-rich protein comprising three modular domains. The protein binds nine zinc ions using a variety of zinc coordination schemes, including a RING domain and a left-handed beta-spiral in which three zinc ions align three consecutive small beta-sheets in an interleaved fashion. We show that Pirh2-p53 interaction is dependent on the C-terminal zinc binding module of Pirh2, which binds to the tetramerization domain of p53. As a result, Pirh2 preferentially ubiquitylates the tetrameric form of p53 in vitro and in vivo, suggesting that Pirh2 regulates protein turnover of the transcriptionally active form of p53.


    Organizational Affiliation

    Ontario Cancer Institute and Department of Medical Biophysics, University of Toronto, Ontario M5G1L7, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RING finger and CHY zinc finger domain-containing protein 1
A
79Homo sapiensMutation(s): 0 
Gene Names: RCHY1 (ARNIP, CHIMP, PIRH2, RNF199, ZNF363)
EC: 2.3.2.27
Find proteins for Q96PM5 (Homo sapiens)
Go to Gene View: RCHY1
Go to UniProtKB:  Q96PM5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2K2D Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-04-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance