The molecular mechanisms that drive intracellular neutralization by the antibody-receptor and RING E3 ligase TRIM21

Semin Cell Dev Biol. 2022 Jun:126:99-107. doi: 10.1016/j.semcdb.2021.11.005. Epub 2021 Nov 22.

Abstract

The cytosolic antibody receptor and RING E3 ligase TRIM21 targets intracellular, antibody-coated immune complexes for degradation and activates the immune system. Here we review how TRIM21 degrades diverse targets and how this activity can be exploited in molecular biology and for the development of new therapeutics. In addition, we compare what is known about TRIM21's mechanism to other TRIM proteins and RING E3 ligases.

Keywords: Antibody; E3 ubiquitin ligase; Intracellular neutralization; TRIM21; Trim-Away; Virus.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies
  • Cytosol / metabolism
  • Ribonucleoproteins* / genetics
  • Ribonucleoproteins* / metabolism
  • Ubiquitin-Protein Ligases* / metabolism
  • Ubiquitination

Substances

  • Antibodies
  • Ribonucleoproteins
  • Ubiquitin-Protein Ligases