نتایج جستجو برای: malonyl
تعداد نتایج: 1296 فیلتر نتایج به سال:
UNLABELLED An increasing body of evidence has revealed that activation of adenosine monophosphate (AMP)-activated protein kinase (AMPK)-activated protein kinase increases fatty acid oxidation by lowering the concentration of malonyl coenzyme A (CoA), an inhibitor of carnitine palmitoyl transferase 1. Studies carried out primarily in skeletal muscle suggest that AMPK modulates the concentration ...
Pseudomonas putida is able to grow on malonate as a sole source of carbon and energy. Malonate decarboxylase is a key enzyme catabolizing malonate to acetate and CO2. The enzyme consists of the five different subunits, (60 kDa), (33 kDa), (28 kDa), (13 kDa), and (30 kDa). The smallest subunit is an acyl-carrier protein (ACP) possessing 2'-(5"-phosphoribosyl)-3'-dephospho-CoA as a prosthetic gro...
Widely held theories of the pathogenesis of obesity-associated NIDDM have implicated apparently incompatible events as seminal: 1) insulin resistance in muscle, 2) abnormal secretion of insulin, and 3) increases in intra-abdominal fat. Altered circulating or tissue lipids are characteristic features of obesity and NIDDM. The etiology of these defects is not known. In this perspective, we propos...
In the flowers of important ornamental Compositae plants, anthocyanins generally carry malonyl group(s) at their 3-glucosyl moiety. In this study, for the first time to our knowledge, we have identified a cDNA coding for this 3-glucoside-specific malonyltransferase for anthocyanins, i.e. malonyl-coenzyme A:anthocyanidin 3-O-glucoside-6"-O-malonyltransferase, from dahlia (Dahlia variabilis) flow...
Liver microsomal fractions contain a malonyl-CoA-inhibitable carnitine acyltransferase (CAT) activity. It has been proposed [Fraser, Corstorphine, Price and Zammit (1999) FEBS Lett. 446, 69-74] that this microsomal CAT activity is due to the liver form of carnitine palmitoyltransferase 1 (L-CPT1) being targeted to the endoplasmic reticulum (ER) membrane as well as to mitochondria, possibly by a...
BACKGROUND/AIMS Carnitine palmitoyl-transferase I (CPT I) catalyses the synthesis of long-chain (LC)-acylcarnitines from LC-acyl-CoA esters. It is the rate-limiting enzyme of mitochondrial fatty acid beta-oxidation (FAO) pathway and its activity is regulated by malonyl-CoA. The antiepileptic drug valproic acid (VPA) is a branched chain fatty acid that is activated to the respective CoA ester in...
RppA, which belongs to the type III polyketide synthase family, catalyses the synthesis of 1,3,6,8-tetrahydroxynaphthalene (THN), which is the key intermediate of melanin biosynthesis in the bacterium Streptomyces griseus. The reaction of THN synthesis catalysed by RppA is unique in the type III polyketide synthase family, in that it selects malonyl-CoA as a starter substrate. The Cys-His-Asn c...
Recent human and animal studies have demonstrated that in severe end-stage heart failure (HF), the cardiac muscle switches to a more fetal metabolic phenotype, characterized by downregulation of free fatty acid (FFA) oxidation and an enhancement of glucose oxidation. The goal of this study was to examine myocardial substrate metabolism in a model of moderate coronary microembolization-induced H...
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