The PYRIN domain in signal transduction

Curr Protein Pept Sci. 2007 Jun;8(3):293-310. doi: 10.2174/138920307780831857.


The Death Domain Fold superfamily of evolutionarily conserved protein-protein interaction domains consists of 4 subfamilies: the death domain, the death effector domain, the caspase recruitment domain, and the PYRIN domain. Interaction of Death Domain Fold containing proteins modulates the activity of several downstream effectors, such as caspases and transcription factors. Recent studies provide evidence for not only homotypic-, but also heterotypic interactions among different sub-families, and even unconventional non-death domain fold interactions. As the number of potential protein associations among Death Domain Fold containing proteins expands and their influence on cellular responses increases, a challenging field for new investigations opens up. This review will focus on PYRIN domain-containing proteins and discuss the recent advances that provide strong evidence that PYRIN domain-mediated signal transduction has broad implications on cellular functions, including innate immunity, inflammation, differentiation, apoptosis, and cancer.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Apoptosis
  • Binding Sites
  • Chromosome Mapping
  • Conserved Sequence
  • Evolution, Molecular
  • Humans
  • Immunity
  • Inflammation
  • Models, Molecular
  • Molecular Sequence Data
  • Protein Conformation
  • Receptors, Death Domain / chemistry*
  • Receptors, Death Domain / genetics
  • Receptors, Death Domain / physiology*
  • Sequence Alignment
  • Sequence Homology, Amino Acid
  • Signal Transduction / physiology*


  • Receptors, Death Domain