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Débora E Rinaldi, Gerardo R Corradi, Lucía Martínez Cuesta, Hugo P Adamo, Felicitas de Tezanos Pinto
P-type ion pumps are membrane transporters that have been classified into five subfamilies termed P1-P5. The ion transported by the P5-ATPases is not known. Five genes named ATP13A1-ATP13A5 that belong to the P5-ATPase group are present in humans. Loss-of-function mutations in the ATP13A2 gene (PARK9, OMIM 610513) underlay a form of Parkinson's disease (PD) known as the Kufor-Rakeb syndrome (KRS), which belongs to the group of syndromes of neurodegeneration with brain iron accumulation (NBIA). Here we report that the cytotoxicity induced by iron exposure was two-fold reduced in CHO cells stably expressing the ATP13A2 recombinant protein (ATP13A2)...
August 2015: Biochimica et Biophysica Acta
Nina van Beek, Aikaterini Patsatsi, Yask Gupta, Steffen Möller, Miriam Freitag, Susanne Lemcke, Andreas Recke, Detlef Zillikens, Enno Schmidt, Saleh Ibrahim
The autosomal dominant Hailey Hailey disease (HHD) is caused by mutations in the ATP2C1 gene encoding for human secretory pathway Ca2+/Mn2+ ATPase protein (hSPCA1) in the Golgi apparatus. Clinically, HHD presents with erosions and hyperkeratosis predominantly in the intertrigines. Here we report an exome next generation sequencing (NGS) based analysis of ATPase genes in a Greek family with 3 HHD patients presenting with clinically atypical lesions mainly localized on the neck and shoulders. By NGS of one HHD-patient and in silico SNP calling and SNP filtering we identified a SNP in the expected ATP2C1 gene and SNPs in further ATPase genes...
2015: PloS One
Diego P De La Hera, Gerardo R Corradi, Hugo P Adamo, Felicitas De Tezanos Pinto
P-type ion pumps are membrane transporters that have been classified into five subfamilies termed P1-P5. The ion transported by the P5-ATPases is not known. Five genes, ATP13A (ATPase type 13A) 1-ATP13A5, that belong to the P5-ATPase group have been identified in humans. Mutations of the human gene ATP13A2 underlie a form of PD (Parkinson's disease). Previous studies have suggested a relation between polyamines and P5B-ATPases. We have recently shown that the cytotoxicity induced by the polyamine analogue paraquat (1,1'-dimethyl-4,4'-bipyridinium), which is an environmental agent related to PD development, was increased in ATP13A2-expressing CHO (Chinese-hamster ovary) cells...
February 15, 2013: Biochemical Journal
Lisa S Weingarten, Hardi Dave, Hongyan Li, Dorota A Crawford
P(5) ATPases (ATP13A1 through ATP13A5) are found in all eukaryotes. They are currently poorly characterized and have unknown substrate specificity. Recent evidence has linked two P(5) ATPases to diseases of the nervous system, suggesting possible importance of these proteins within the nervous system. In this study we determined the relative expression of mouse P5 ATPases in development using quantitative real time PCR. We have shown that ATP13A1 and ATP13A2 were both expressed similarly during development, with the highest expression levels at the peak of neurogenesis...
March 2012: Cellular & Molecular Biology Letters
Patrick J Schultheis, Tamara T Hagen, Kate K O'Toole, Akiko Tachibana, Charles R Burke, Diana L McGill, Gbolahan W Okunade, Gary E Shull
In mammals, the most poorly understood P-type ATPases are those of the P(5) subfamily. To begin characterization of the mammalian P(5)-ATPases, BLAST searches of DNA sequence databases were performed. Five genes were identified in the mouse, human, dog, and rat genomes, and the coding sequences of the mouse genes, termed Atp13a1-Atp13a5, were determined. The intron/exon organization of Atp13a1 differs entirely from those of Atp13a2-5, which are closely related. Amino acid sequence comparisons between the five mouse and two yeast P(5)-ATPases suggest that Atp13a1 is orthologous to the yeast Cod1 gene and that Atp13a2-5 are orthologous to yeast Yor291w...
October 22, 2004: Biochemical and Biophysical Research Communications
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