A newly identified Pirh2 substrate SCYL1-BP1 can bind to MDM2 and accelerate MDM2 self-ubiquitination

Jing Yan, Di Zhang, Yujun Di, Huili Shi, Hai Rao, Keke Huo

Research output: Contribution to journalArticle

14 Scopus citations


The SCY1-like 1 binding protein 1 (SCYL1-BP1) protein was identified as an interacting partner of E3 ligase p53-induced RING H2 protein (Pirh2) and mouse double minute gene number 2 (MDM2) by yeast two-hybrid screening. Further investigation suggested there are two interactions involved in different mechanisms. SCYL1-BP1 can be ubiquitinated and degraded by Pirh2 but not by MDM2, which suggests that SCYL1-BP1 can be regulated by Pirh2. On the other hand, while SCYL1-BP1 binds to ubiquitin E3 ligase MDM2, it promotes MDM2 self-ubiquitination and results in a reduction of MDM2 protein level.

Original languageEnglish (US)
Pages (from-to)3275-3278
Number of pages4
JournalFEBS Letters
Issue number15
StatePublished - Aug 1 2010



  • Mouse double minute gene number 2
  • P53-Induced RING H2 protein
  • Protein degradation
  • SCY1-like 1 binding protein 1
  • Ubiquitination

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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