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Iuso, A. ; Wiersma, M.* ; Schüller, H.J.* ; Pode-Shakked, B.* ; Marek-Yagel, D.* ; Grigat, M.* ; Schwarzmayr, T. ; Berutti, R. ; Alhaddad, B.* ; Kanon, B.* ; Grzeschik, N.A.* ; Okun, J.G.* ; Perles, Z.* ; Salem, Y.* ; Barel, O.* ; Vardi, A.* ; Rubinshtein, M.* ; Tirosh, T.* ; Dubnov-Raz, G.* ; Messias, A.C. ; Terrile, C. ; Barshack, I.* ; Volkov, A.* ; Avivi, C.* ; Eyal, E.* ; Mastantuono, E. ; Kumbar, M.* ; Abudi, S.* ; Braunisch, M.* ; Strom, T.M. ; Meitinger, T. ; Hoffmann, G.F.* ; Prokisch, H. ; Haack, T.B. ; Brundel, B.J.J.M.* ; Haas, D.* ; Sibon, O.C.M.* ; Anikster, Y.*

Mutations in PPCS, encoding phosphopantothenoylcysteine synthetase, cause autosomal-recessive dilated cardiomyopathy.

Am. J. Hum. Genet. 102, 1018-1030 (2018)
Publ. Version/Full Text Postprint Research data DOI PMC
Open Access Green
Coenzyme A (CoA) is an essential metabolic cofactor used by around 4% of cellular enzymes. Its role is to carry and transfer acetyl and acyl groups to other molecules. Cells can synthesize CoA de novo from vitamin B5 (pantothenate) through five consecutive enzymatic steps. Phosphopantothenoylcysteine synthetase (PPCS) catalyzes the second step of the pathway during which phosphopantothenate reacts with ATP and cysteine to form phosphopantothenoylcysteine. Inborn errors of CoA biosynthesis have been implicated in neurodegeneration with brain iron accumulation (NBIA), a group of rare neurological disorders characterized by accumulation of iron in the basal ganglia and progressive neurodegeneration. Exome sequencing in five individuals from two unrelated families presenting with dilated cardiomyopathy revealed biallelic mutations in PPCS, linking CoA synthesis with a cardiac phenotype. Studies in yeast and fruit flies confirmed the pathogenicity of identified mutations. Biochemical analysis revealed a decrease in CoA levels in fibroblasts of all affected individuals. CoA biosynthesis can occur with pantethine as a source independent from PPCS, suggesting pantethine as targeted treatment for the affected individuals still alive.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Coenzyme A ; Dilated Cardiomyopathy ; Pantethine Treatment ; Pentothenate ; Phospohopantothenoylcysteine Synthetase ; Ppcs; Pml Nuclear-bodies; Monoclonal-antibodies; E1b-55k Oncoprotein; Messenger-rna; E3 Ligase; Dependent Degradation; 55-kilodalton Protein; Transformed-cells; Cellular-proteins; E1b55k Proteins
Language english
Publication Year 2018
HGF-reported in Year 2018
ISSN (print) / ISBN 0002-9297
e-ISSN 1537-6605
Journal American Journal of Human Genetics, The
Quellenangaben Volume: 102, Issue: 6, Pages: 1018-1030 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place New York, NY
Reviewing status Peer reviewed
Institute(s) Institute of Human Genetics (IHG)
Institute of Structural Biology (STB)
POF-Topic(s) 30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
30203 - Molecular Targets and Therapies
Research field(s) Genetics and Epidemiology
Enabling and Novel Technologies
PSP Element(s) G-500700-001
G-503000-001
DOI 10.1016/j.ajhg.2018.03.022
WOS ID WOS:000434946200002
Scopus ID 85046776501
PubMed ID 29754768
Erfassungsdatum 2018-06-26
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