SPATA2: more than a missing link

Cell Death Differ. 2017 Jul;24(7):1142-1147. doi: 10.1038/cdd.2017.26. Epub 2017 Mar 10.

Abstract

The assembly of the TNFR1 signalling complex (TNF-RSC) depends on K63- and M1-linked ubiquitylation, promoting the recruitment of complex constituents and the stability of the complex. Ubiquitylation is a dynamic process, controlled by E3 ubiquitin ligases as well as deubiquitinases, such as CYLD and OTULIN. A novel molecule, SPATA2, which is crucial for recruiting and activating the deubiquitinase CYLD within the TNF-RSC, has now been identified by four different studies. Loss of SPATA2 was shown to result in increased TNF-, but also NOD2-mediated proinflammatory signalling. Importantly, SPATA2 is instrumental for TNF-induced cell death, and a closer look at these findings suggests that SPATA2 possibly has functions beyond promoting the activity of CYLD.

Publication types

  • Review

MeSH terms

  • Animals
  • Humans
  • Models, Biological
  • Protein Binding
  • Proteins / metabolism*
  • Receptors, Tumor Necrosis Factor, Type I / metabolism
  • Signal Transduction
  • Ubiquitination

Substances

  • Proteins
  • Receptors, Tumor Necrosis Factor, Type I