Macromolecule Content

• Total Structure Weight: 9103.62 
• Atom Count: 362 
• Residue Count: 79 
• Unique protein chains: 1

2K2D

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

• DOI: 10.2210/pdb2K2D/pdb
• BMRB: 15701

• Classification: METAL BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2008-03-31 Released: 2008-04-15 
• Deposition Author(s): Lemak, A., Sheng, Y., Karra, M., Srisailam, S., Laister, R.C., Duan, S., Arrowsmith, C.H., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

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

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

• PubMed: 19043414 
• DOI: 10.1038/nsmb.1521
• Primary Citation of Related Structures:  
  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. 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.

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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
Molecule	Chains	Sequence Length	Organism	Details
RING finger and CHY zinc finger domain-containing protein 1	A	79	Homo sapiens	Mutation(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
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

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

Entry History 

Deposition Data

• Deposited Date: 2008-03-31 
• Released Date: 2008-04-15 
• Deposition Author(s): Lemak, A., Sheng, Y., Karra, M., Srisailam, S., Laister, R.C., Duan, S., Arrowsmith, C.H., Northeast Structural Genomics Consortium (NESG)

Revision History 

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