Topography of very-long-chain-fatty-acid-activating activity in peroxisomes from rat liver
نویسندگان
چکیده
منابع مشابه
Phytanic acid activation in rat liver peroxisomes is catalyzed by long-chain acyl-CoA synthetase.
In Refsum disease, disorders of peroxisome biogenesis, and rhizomelic chondrodysplasia punctata, pathological accumulation of phytanic acid results from impaired alpha-oxidation of this branched-chain fatty acid. Previous studies from this laboratory indicated that activation of phytanic acid to its CoA derivative precedes its alpha-oxidation in peroxisomes. It was reported that this reaction i...
متن کاملLong chain fatty acid activation in subcellular preparations from rat liver.
A study of the activation of several long chain saturated and unsaturated fatty acids by rat liver preparations was undertaken. Investigation of reaction requirements and appropriate modifications revealed that rat liver is extremely active in long chain acyl-coenzyme A synthetase or synthetases (acid: CoA ligase (AMP), EC 6.2.1.3) activity. With pahnitate as substrate, the cell membrane fracti...
متن کاملPlasmalogens participate in very-long-chain fatty acid-induced pathology.
Peroxisomes are organelles responsible for multiple metabolic pathways including, the biosynthesis of plasmalogens, a class of phospholipids, and the beta-oxidation of very-long-chain fatty acids (VLCFA). Lack of peroxisomes or dysfunction in any of their normal functions is the cellular basis for human peroxisomal disorders. Here we used mouse models to understand and define the biochemical an...
متن کاملOxidation of long chain fatty acids by rat liver mitochondria.
Long chain fatty acids are oxidized by rat liver mitochondria provided that endogenous adenosine triphosphate is not depleted. If endogenous ATP is depleted, e.g. by Z,&dinitrophenol, external ATP as well as carnitine is required for fatty acid oxidation. Atractyloside does not block this reaction in media containing orthophosphate buffer. Oligomycin can substitute for carnitine, but the oligom...
متن کاملFatty acid binding protein. Role in esterification of absorbed long chain fatty acid in rat intestine.
Fatty acid binding protein (FABP) is a protein of 12,000 mol wt found in cytosol of intestinal mucosa and other tissues, which exhibits high affinity for long chain fatty acids. It has been suggested that FABP (which may comprise a group of closely related proteins of 12,000 mol wt) participates in cellular fatty acid transport and metabolism. Although earlier findings were consistent with this...
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: Biochemical Journal
سال: 1991
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj2760053