Teresa Rubio

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BACKGROUND Lafora progressive myoclonus epilepsy (Lafora disease; LD) is a fatal autosomal recessive neurodegenerative disorder caused by loss-of-function mutations in either the EPM2A gene, encoding the dual specificity phosphatase laforin, or the EPM2B gene, encoding the E3-ubiquitin ligase malin. Previously, we and others have shown that both proteins(More)
R5/PTG is one of the glycogen targeting subunits of type 1 protein phosphatase, a master regulator of glycogen synthesis. R5/PTG recruits the phosphatase to the places where glycogen synthesis occurs, allowing the activation of glycogen synthase and the inactivation of glycogen phosphorylase, thus increasing glycogen synthesis and decreasing its(More)
Malin is an E3-ubiquitin ligase that is mutated in Lafora disease, a fatal form of progressive myoclonus epilepsy. In order to perform its function, malin forms a functional complex with laforin, a glucan phosphatase that facilitates targeting of malin to its corresponding substrates. While laforin phylogeny has been studied, there are no data on the(More)
AMP-activated protein kinase (AMPK) is a sensor of cellular energy status. It is a heterotrimer composed of a catalytic α and two regulatory subunits (β and γ). AMPK activity is regulated allosterically by AMP and by the phosphorylation of residue Thr-172 within the catalytic domain of the AMPKα subunit by upstream kinases. We present evidence that the(More)
The purpose of this study is to investigate the associations between peer teasing and body dissatisfaction (BD), emotional symptoms, drive for thinness (DT), and abnormal eating behaviors, as well as to analyze the mediating role of gender and body mass index (BMI) in such disorders. We screened 57,997 school children between 13 and 16 years of age. Scores(More)
AMP-activated protein kinase (AMPK) is a sensor of energy status composed of a catalytic subunit (AMPKα), a scaffolding subunit (AMPKβ) and a regulatory subunit involved in nucleotide binding (AMPKγ). Activation of AMPK results in enhancement of catabolic processes and downregulation of anabolic pathways with the aim to equilibrate the energy status of the(More)
We have characterized the three cis elements responsible for promoter strength present in the 5'-flanking proximal region of MAL, a human T-cell-specific gene encoding a proteolipid protein present in detergent-insoluble complexes of high molecular weight. The first element consisted of an initiator sequence that, curiously, was present in reverse(More)
Genomic DNA clones containing the T-cell-specific human MAL gene were isolated. Restriction and sequence analysis revealed four exons and three introns. Each hydrophobic segment of MAL together with its adjacent hydrophilic sequence correlates closely with one exon of the gene. RNase protection analysis revealed that the previously described MAL mRNA, which(More)
Actin-binding proteins regulate the dynamic structure and function of actin filaments in the cell. Much is known about how manipulation of the actin-binding proteins affects the structure and function of actin filaments; however, little is known about how manipulation of actin in the cell affects actin-binding proteins. We addressed this question by(More)
Sequence analysis of the T-cell-specific MAL gene revealed four exons, each encoding a hydrophobic, presumably membrane-associated, segment and its adjacent hydrophilic sequence. Amplification by the polymerase chain reaction of cDNA from different T-cell samples indicated the existence of four different forms of MAL mRNA, termed MAL-a, -b, -c, and -d, that(More)