PEX11 promotes peroxisome division independently of peroxisome metabolism
نویسندگان
چکیده
منابع مشابه
PEX11 promotes peroxisome division independently of peroxisome metabolism
The PEX11 peroxisomal membrane proteins are the only factors known to promote peroxisome division in multiple species. It has been proposed that PEX11 proteins have a direct role in peroxisomal fatty acid oxidation, and that they only affect peroxisome abundance indirectly. Here we show that PEX11 proteins are unique in their ability to promote peroxisome division, and that PEX11 overexpression...
متن کاملMembrane curvature during peroxisome fission requires Pex11
Pex11 is a key player in peroxisome proliferation, but the molecular mechanisms of its function are still unknown. Here, we show that Pex11 contains a conserved sequence at the N-terminus that can adopt the structure of an amphipathic helix. Using Penicillium chrysogenum Pex11, we show that this amphipathic helix, termed Pex11-Amph, associates with liposomes in vitro. This interaction is especi...
متن کاملPeroxisome division and proliferation in plants.
Peroxisomes are eukaryotic organelles with crucial functions in development. Plant peroxisomes participate in various metabolic processes, some of which are co-operated by peroxisomes and other organelles, such as mitochondria and chloroplasts. Defining the complete picture of how these essential organelles divide and proliferate will be instrumental in understanding how the dynamics of peroxis...
متن کاملThe dynamin-like GTPase DLP1 is essential for peroxisome division and is recruited to peroxisomes in part by PEX11.
Peroxisome division involves the conserved PEX11 peroxisomal membrane proteins and in yeast has been shown to require Vps1p, a dynamin-like protein. We show here that DLP1, the human homolog of the yeast DNM1 and VPS1 genes, plays an important role in peroxisome division in human cells. Disruption of DLP1 function by either RNA interference or overexpressing dominant negative DLP1 mutants cause...
متن کاملFailure of microtubule-mediated peroxisome division and trafficking in disorders with reduced peroxisome abundance.
In contrast to peroxisomes in normal cells, remnant peroxisomes in cultured skin fibroblasts from a subset of the clinically severe peroxisomal disorders that includes the biogenesis disorder Zellweger syndrome and the single-enzyme defect D-bifunctional protein (D-BP) deficiency, are enlarged and significantly less abundant. We tested whether these features could be related to the known role o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2002
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.200112028