AtPex14p maintains peroxisomal functions by determining protein targeting to three kinds of plant peroxisomes
نویسندگان
چکیده
منابع مشابه
Targeting of human catalase to peroxisomes is dependent upon a novel COOH-terminal peroxisomal targeting sequence
We have identified a novel peroxisomal targeting sequence (PTS) at the extreme COOH terminus of human catalase. The last four amino acids of this protein (-KANL) are necessary and sufficient to effect targeting to peroxisomes in both human fibroblasts and Saccharomyces cerevisiae, when appended to the COOH terminus of the reporter protein, chloramphenicol acetyl transferase. However, this PTS d...
متن کاملInvolvement of Pex13p in Pex14p Localization and Peroxisomal Targeting Signal 2–dependent Protein Import into Peroxisomes
Pex13p is the putative docking protein for peroxisomal targeting signal 1 (PTS1)-dependent protein import into peroxisomes. Pex14p interacts with both the PTS1- and PTS2-receptor and may represent the point of convergence of the PTS1- and PTS2-dependent protein import pathways. We report the involvement of Pex13p in peroxisomal import of PTS2-containing proteins. Like Pex14p, Pex13p not only in...
متن کاملPeroxisomes and peroxisomal disorders.
During their classic studies on the Separation of lysosomes by centrifugation of rat liver homogenates, De Duve and bis group (1) observed that certain oxidative enzymes, such äs Z)-amino acid oxidase and uric acid oxidase wbich produce hydrogen peroxide, and catalase which attacks hydrogen peroxide, were always found in a discrete fraction which could be separated from lysosomes and mitochondr...
متن کاملAn internal region of the peroxisomal membrane protein PMP47 is essential for sorting to peroxisomes
Targeting sequences on peroxisomal membrane proteins have not yet been identified. We have attempted to find such a sequence within PMP47, a protein of the methylotrophic yeast, Candida boidinii. This protein of 423 amino acids shows sequence similarity with proteins in the family of mitochondrial carrier proteins. As such, it is predicted to have six membrane-spanning domains. Protease suscept...
متن کاملDegradation of plant peroxisomes by autophagy
Peroxisomes play a critical role in many metabolic pathways during the plant life cycle. It has been proposed that the transition between different types of peroxisomes involves the degradation of obsolete peroxisomal enzymes via proteolytic activities in the peroxisome matrix, the cytosol, or the vacuole. Forward and reverse genetic studies recently provided evidence for autophagic degradation...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 2000
ISSN: 1460-2075
DOI: 10.1093/emboj/19.21.5701