Comparative Genomics of Peroxisome Biogenesis Proteins: Making Sense of the PEX Proteins.

ABSTRACT: PEX genes encode proteins involved in peroxisome biogenesis and proliferation. Using a comparative genomics approach, we clarify the evolutionary relationships between the 37 known PEX proteins in a representative set of eukaryotes, including all common model organisms, pathogenic unicellular eukaryotes and human. A large number of previously unknown PEX orthologs were identified. We analyzed all PEX proteins, their conservation and domain architecture and defined the core set of PEX proteins that is required to make a peroxisome. The molecular processes in peroxisome biogenesis in different organisms were put into context, showing that peroxisomes are not static organelles in eukaryotic evolution. Organisms that lack peroxisomes still contain a few PEX proteins, which probably play a role

SUBMITTER: Jansen RLM 

PROVIDER: S-EPMC8172628 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature