Normal dystrophin in McLeod myopathy. 1990

A Danek, and T N Witt, and H B Stockmann, and B J Weiss, and D L Schotland, and K H Fischbeck
Neurologische Klinik, Klinikum Grosshadern, Ludwig-Maximilians-Universität, Munich, Federal Republic of Germany.

Dystrophin and its gene were studied in a patient with McLeod syndrome. This X-linked recessive myopathy has been localized to Xp21, as has the Duchenne muscular dystrophy gene locus, which codes for dystrophin. Histopathological study of the patient's muscle showed mild subclinical myopathy. Immunological studies of dystrophin in two separate biopsy specimens and analysis of dystrophin gene DNA from a blood sample did not detect an abnormality. This suggests that the Duchenne muscular dystrophy gene, albeit close to the McLeod locus, is not involved in McLeod myopathy.

UI MeSH Term Description Entries
D008297 Male Males
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009135 Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE. Muscle Disorders,Myopathies,Myopathic Conditions,Muscle Disorder,Muscular Disease,Myopathic Condition,Myopathy
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
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
D015153 Blotting, Western Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes. Immunoblotting, Western,Western Blotting,Western Immunoblotting,Blot, Western,Immunoblot, Western,Western Blot,Western Immunoblot,Blots, Western,Blottings, Western,Immunoblots, Western,Immunoblottings, Western,Western Blots,Western Blottings,Western Immunoblots,Western Immunoblottings
D016189 Dystrophin A muscle protein localized in surface membranes which is the product of the Duchenne/Becker muscular dystrophy gene. Individuals with Duchenne muscular dystrophy usually lack dystrophin completely while those with Becker muscular dystrophy have dystrophin of an altered size. It shares features with other cytoskeletal proteins such as SPECTRIN and alpha-actinin but the precise function of dystrophin is not clear. One possible role might be to preserve the integrity and alignment of the plasma membrane to the myofibrils during muscle contraction and relaxation. MW 400 kDa.

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