2K2C

Solution NMR structure of N-terminal domain of human pirh2. Northeast Structural Genomics Consortium (NESG) target HT2A


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 1.2 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:  
    2K2D, 2K2C, 2JRJ

  • 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. 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 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RING finger and CHY zinc finger domain-containing protein 1 A137Homo sapiensMutation(s): 2 
Gene Names: RCHY1ARNIPCHIMPPIRH2RNF199ZNF363
EC: 2.3.2.27
Find proteins for Q96PM5 (Homo sapiens)
Explore Q96PM5 
Go to UniProtKB:  Q96PM5
NIH Common Fund Data Resources
PHAROS:  Q96PM5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2K2C Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-04-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-02-19
    Changes: Data collection, Database references, Derived calculations, Other