TABLE 2.

Genes required for peroxisome organization and biogenesis identified in this study as determinants of yeast resistance to inhibitory ethanol concentrations^a

Gene/ORF name	Protein description
PEX1	AAA family ATPase peroxin required for peroxisome biogenesis
PEX10	RING finger peroxisomal membrane peroxin required for peroxisomal matrix protein import
PEX12	RING finger peroxisomal membrane peroxin that plays an essential role in peroxisome biogenesis and peroxisomal matrix protein import
PEX14	Peroxisomal membrane protein that is a central component of the peroxisomal protein import machinery
PEX19	Chaperone and import receptor for newly synthesized class I peroxisomal membrane proteins
PEX2	RING finger peroxin, peroxisomal membrane protein with a C-terminal zinc-binding RING domain
PEX22	Putative peroxisomal membrane protein required for import of peroxisomal proteins
PEX3	Peroxisomal membrane protein required to recruit Pex19p chaperone to peroxisomes
PEX4	Peroxisomal ubiquitin conjugating enzyme required for peroxisomal matrix protein import and peroxisome biogenesis
PEX5	Peroxisomal membrane signal receptor for C-terminal tripeptide signal sequence (PTS1) of peroxisomal matrix proteins
PEX8	Intraperoxisomal organizer of the peroxisomal import machinery

^aDescriptions are based on those in the SGD (www.yeastgenome.org).