We show that the drosophila gene encoding the dystrophin-like protein (DLP) is as complex as the mammalian dystrophin gene. Three 5' promoters and three internal promoters regulate the expression of three full-length and three truncated products, respectively. The existence of this complex gene structure in such evolutionary remote organisms suggests that both types of products have diverse important functions. The promoters of both the DLP gene and the mammalian dystrophin gene are located in very large introns. These introns contribute significantly to the large size of the genes. The possible relevance of the conservation of the large size of introns containing promoters to the regulation of promoter activity is discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.febslet.2005.08.073 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Two Novel Mouse Models of Duchenne Muscular Dystrophy with Similar Dmd Exon 51 Frameshift Mutations and Varied Phenotype Severity.
Int J Mol Sci
December 2024
Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia.
Duchenne muscular dystrophy (DMD) is a severe X-linked genetic disorder caused by an array of mutations in the dystrophin gene, with the most commonly mutated regions being exons 48-55. One of the several existing approaches to treat DMD is gene therapy, based on alternative splicing and mutant exon skipping. Testing of such therapy requires animal models that carry mutations homologous to those found in human patients.
View Article and Find Full Text PDFPhase 1/2 trial of brogidirsen: Dual-targeting antisense oligonucleotides for exon 44 skipping in Duchenne muscular dystrophy.
Cell Rep Med
December 2024
Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo 187-8502, Japan. Electronic address:
Duchenne muscular dystrophy (DMD) is a severe muscle disorder caused by mutations in the DMD gene, leading to dystrophin deficiency. Antisense oligonucleotide (ASO)-mediated exon skipping offers potential by partially restoring dystrophin, though current therapies remain mutation specific with limited efficacy. To overcome those limitations, we developed brogidirsen, a dual-targeting ASO composed of two directly connected 12-mer sequences targeting exon 44 using phosphorodiamidate morpholino oligomers.
View Article and Find Full Text PDFAdeno-Associated Virus 8 and 9 Myofibre Type/Size Tropism Profiling Reveals Therapeutic Effect of Microdystrophin in Canines.
J Cachexia Sarcopenia Muscle
February 2025
Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, Missouri, USA.
Background: Adeno-associated virus (AAV) 8 and 9 are in clinical trials for treating neuromuscular diseases such as Duchenne muscular dystrophy (DMD). Muscle consists of myofibres of different types and sizes. However, little is known about the fibre type and fibre size tropism of AAV in large mammals.
View Article and Find Full Text PDFExpanding the Molecular Genetic Landscape of Dystrophinopathies and Associated Phenotypes.
Biomedicines
November 2024
Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Centre for Translational Neuro- and Behavioral Sciences, University Duisburg-Essen, 45122 Essen, Germany.
: X-linked dystrophinopathies are a group of neuromuscular diseases caused by pathogenic variants in the gene (MIM *300377). Duchenne muscular dystrophy (DMD; MIM #310200) is the most common inherited muscular dystrophy. : We screened datasets of 403 male, genetically confirmed X-linked dystrophinopathy patients and identified 13 pathogenic variants of the gene that have not been described in the literature thus far.
View Article and Find Full Text PDFCharacterization of Dystrophin Dp71 Expression and Interaction Partners in Embryonic Brain Development: Implications for Duchenne/Becker Muscular Dystrophy.
Mol Neurobiol
January 2025
Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465 Kajii-Cho, Kawaramachi Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan.
Duchenne/Becker muscular dystrophy (DMD/BMD) manifests progressive muscular dystrophy and non-progressive central nervous disorder. The neural disorder is possibly caused by abnormalities in the developmental period; however, basic research to understand the mechanisms remains underdeveloped. The responsible gene, Dmd (dystrophin), generates multiple products derived from several gene promoters.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!