The peroxisome biogenesis factors Pex3 and Pex19: Multitasking proteins with disputed functions

Renate L M Jansen, Ida J van der Klei*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

11 Citations (Scopus)

Abstract

The peroxisomal membrane protein Pex3 and its cytosolic interaction partner Pex19 have been implicated in peroxisomal membrane biogenesis. Although these peroxins have been extensively studied, no consensus has been reached yet on how they operate. Here, we discuss two major models of their function, namely, in direct insertion of proteins into the peroxisomal membrane or in formation of peroxisomal membrane protein-containing vesicles from the endoplasmic reticulum. Pex3 can also recruit other proteins to the peroxisomal membrane (e.g. Inp1, Atg30, Atg36), thereby fulfilling roles in other processes such as autophagy and organelle retention. Recent studies indicate that Pex3 and Pex19 can also facilitate sorting of certain membrane proteins to other cellular organelles, including the endoplasmic reticulum, lipid droplets and mitochondria. This article is protected by copyright. All rights reserved.

Original languageEnglish
Pages (from-to)457-474
Number of pages18
JournalFEBS Letters
Volume593
Issue number5
Early online date18-Feb-2019
DOIs
Publication statusPublished - Mar-2019

Keywords

  • peroxisome
  • Pex3
  • Pex19
  • MEMBRANE-PROTEIN
  • ENDOPLASMIC-RETICULUM
  • SACCHAROMYCES-CEREVISIAE;
  • MESSENGER-RNAS
  • SELECTIVE AUTOPHAGY
  • ZELLWEGER-SYNDROME
  • TAGS PEROXISOMES
  • STRUCTURAL BASIS
  • LIPID DROPLETS
  • POTENTIAL ROLE

Cite this