PEX5 Antibody – Rabbit Polyclonal

PEX5: Binds to the C-terminal PTS1-type tripeptide peroxisomal targeting signal (SKL-type) and plays an essential role in peroxisomal protein import. Defects in PEX5 are a cause of adrenoleukodystrophy neonatal (NALD). NALD is a peroxisome biogenesis disorder (PBD) characterized by the accumulation of very long- chain fatty acids, adrenal insufficiency and mental retardation. Inheritance is autosomal recessive. Defects in PEX5 are a cause of Zellweger syndrome (ZWS). ZWS is a fatal peroxisome biogenesis disorder characterized by dysmorphic facial features, hepatomegaly, ocular abnormalities, renal cysts, hearing impairment, profound psychomotor retardation, severe hypotonia and neonatal seizures. Death occurs within the first year of life. Defects in PEX5 may be a cause of infantile Refsum disease (IRD). IRD is a mild peroxisome biogenesis disorder (PBD). Clinical features include early onset, mental retardation, minor facial dysmorphism, retinopathy, sensorineural hearing deficit, hepatomegaly, osteoporosis, failure to thrive, and hypocholesterolemia. The biochemical abnormalities include accumulation of phytanic acid, very long chain fatty acids (VLCFA), di- and trihydroxycholestanoic acid and pipecolic acid. Belongs to the peroxisomal targeting signal receptor family. 4 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Receptor, protein translocating

Chromosomal Location of Human Ortholog: 12p13.31

Cellular Component: cytoplasm; cytosol; Golgi apparatus; membrane; peroxisomal membrane; peroxisome; protein complex

Molecular Function: enzyme binding; peroxisome matrix targeting signal-1 binding; peroxisome targeting sequence binding; protein binding; protein N-terminus binding; small GTPase binding

Biological Process: protein import into peroxisome matrix; protein import into peroxisome matrix, docking; protein import into peroxisome membrane

Disease: Peroxisome Biogenesis Disorder 2a (zellweger); Peroxisome Biogenesis Disorder 2b; Rhizomelic Chondrodysplasia Punctata, Type 5