Dystrophin or a "related protein" in Duchenne muscular dystrophy? 1992

L V Nicholson, and M A Johnson, and K Davison, and E O'Donnell, and G Falkous, and M Barron, and J B Harris
Muscular Dystrophy Group Research Laboratories, Newcastle General Hospital, England.

Previously we have shown low levels of dystrophin immunoreactivity in muscle from patients with DMD. According to the "frame-shift hypothesis" DMD muscle should not synthesize any dystrophin through to the C-terminus and it has been suggested that the protein detected is not dystrophin, but a related autosomal homologue. We have labelled serial sections of DMD muscle with specific monoclonal antibodies to the amino, rod and C-terminal domains of dystrophin and find labelling on the same individual fibres, allowing us to conclude that the protein detected is Xp21-encoded dystrophin. This has an impact on the interpretation of myoblast transfer experiments. The abundance (on blots) of "C-terminal dystrophin" appears lower than "rod dystrophin" in both BMD and DMD.

UI MeSH Term Description Entries
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009136 Muscular Dystrophies A heterogeneous group of inherited MYOPATHIES, characterized by wasting and weakness of the SKELETAL MUSCLE. They are categorized by the sites of MUSCLE WEAKNESS; AGE OF ONSET; and INHERITANCE PATTERNS. Muscular Dystrophy,Myodystrophica,Myodystrophy,Dystrophies, Muscular,Dystrophy, Muscular,Myodystrophicas,Myodystrophies
D002872 Chromosome Deletion Actual loss of portion of a chromosome. Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D002891 Chromosomes, Human, Pair 21 A specific pair of GROUP G CHROMOSOMES of the human chromosome classification. Chromosome 21
D005091 Exons The parts of a transcript of a split GENE remaining after the INTRONS are removed. They are spliced together to become a MESSENGER RNA or other functional RNA. Mini-Exon,Exon,Mini Exon,Mini-Exons
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D012729 Sex Chromosome Aberrations Abnormal number or structure of the SEX CHROMOSOMES. Some sex chromosome aberrations are associated with SEX CHROMOSOME DISORDERS and SEX CHROMOSOME DISORDERS OF SEX DEVELOPMENT. Sex Chromosome Abnormalities,Abnormalities, Sex Chromosome,Chromosome Abnormalities, Sex,Aberration, Sex Chromosome,Aberrations, Sex Chromosome,Abnormality, Sex Chromosome,Chromosome Aberration, Sex,Chromosome Aberrations, Sex,Chromosome Abnormality, Sex,Sex Chromosome Aberration,Sex Chromosome Abnormality
D014960 X Chromosome The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in human and other male-heterogametic species. Chromosome, X,Chromosomes, X,X Chromosomes

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