نتایج جستجو برای: pantothenate kinase
تعداد نتایج: 227686 فیلتر نتایج به سال:
Pantothenate kinase (CoaA) is a key regulator of coenzyme A (CoA) biosynthesis in Escherichia coli, and its activity is controlled by feedback inhibition by CoA and its thioesters. The importance of feedback inhibition in the control of the intracellular CoA levels was tested by constructing three site-directed mutants of CoaA that were predicted to be feedback resistant based on the crystal st...
Mutations in the pantothenate kinase 2 (PANK2) gene have been identified in patients with neurodegeneration with brain iron accumulation (NBIA; formerly Hallervorden–Spatz disease). However, the mechanisms by which these mutations cause neurodegeneration are unclear, especially given the existence of multiple pantothenate kinase genes in humans and multiple PanK2 transcripts with potentially di...
Pantothenate kinase-associated neurodegeneration (PKAN) is a rare, inborn error of metabolism characterized by iron accumulation in the basal ganglia and by the presence of dystonia, dysarthria, and retinal degeneration. Mutations in pantothenate kinase 2 (PANK2), the rate-limiting enzyme in mitochondrial coenzyme A biosynthesis, represent the most common genetic cause of this disorder. How mut...
Hallervorden-Spatz syndrome is a rare autosomal recessive hereditary condition characterized by early onset of progressive movement alteration that include dystonia, rigidity and choreoathetosis usually associated with pyramidal signs and mental deterioration. We report two sisters where diagnosis was missed till MRI showed classic imaging findings. Mutation analysis in one, revealed homozygous...
Introduction. Pantothenate-kinase-associated neurodegeneration (PKAN) is a rare genetic disease and a form of neurodegeneration with brain iron accumulation (NBIA). It most commonly begins in the first two decades of life but should be considered in the differential diagnosis of patients at any age with an atypical progressive extrapyramidal disorder and cognitive impairment. Few late-adult cas...
Coenzyme A (CoA) is an essential universal cofactor for all prokaryotic and eukaryotic cells. In nearly all non-photosynthetic cells, CoA biosynthesis depends on the uptake and phosphorylation of vitamin B5 (pantothenic acid or pantothenate). Recently, putative pantothenate transporter (PAT) and pantothenate kinases (PanKs) were functionally characterized in P. yoelii. PAT and PanKs were shown ...
Pantothenate kinase (PanK) is the key regulatory enzyme in the CoA biosynthetic pathway in bacteria and is thought to play a similar role in mammalian cells. We examined this hypothesis by identifying and characterizing two murine cDNAs that encoded PanK. The two cDNAs were predicted to arise from alternate splicing of the same gene to yield different mRNAs that encode two isoforms (mPanK1alpha...
1. Clinic 3D Diagnóstico por Imagem. Hospital Casa de Portugal. Rio de Janeiro. Brasil. 2. Department of Radiology. Hospital Casa de Portugal. Rio de Janeiro. Brasil. 3. Universidade do Grande Rio. Rio de Janeiro. Brasil. Autor correspondente: Bruno Niemeyer de Freitas Ribeiro. [email protected]. Recebido: 22 de Dezembro de 2014 Aceite: 15 de Março de 2015 | Copyright © Ordem dos Méd...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید