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Myopathy and phosphorylase kinase deficiency caused by a mutation in the PHKA1 gene. 2005

Wim Wuyts, and Edwin Reyniers, and Chantal Ceuterick, and Katrien Storm, and Thierry de Barsy, and Jean-Jacques Martin
Department of Medical Genetics, University of Antwerp, Antwerp, Belgium. wim.wuyts@ua.ac.be

Phosphorylase kinase (PhK) deficiency is the underlying cause of variable clinical symptoms depending on the tissues involved. Until today, only a few cases of myopathy associated with muscle PhK deficiency caused by a mutation in the gene encoding the alpha subunit of phosphorylase kinase (PHKA1) have been reported. We describe a male patient with myopathy and absent muscle PhK activity caused by a frameshift mutation in the gene encoding the alpha subunit of PhK on chromosome Xq12-q13.

UI MeSH Term Description Entries
D008297 Male Males
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
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
D009154 Mutation Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. Mutations
D010764 Phosphorylase Kinase An enzyme that catalyzes the conversion of ATP and PHOSPHORYLASE B to ADP and PHOSPHORYLASE A. Glycogen Phosphorylase Kinase,Phosphorylase b Kinase,Kinase, Glycogen Phosphorylase,Kinase, Phosphorylase,Kinase, Phosphorylase b,Phosphorylase Kinase, Glycogen,b Kinase, Phosphorylase
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
D004252 DNA Mutational Analysis Biochemical identification of mutational changes in a nucleotide sequence. Mutational Analysis, DNA,Analysis, DNA Mutational,Analyses, DNA Mutational,DNA Mutational Analyses,Mutational Analyses, 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
D016368 Frameshift Mutation A type of mutation in which a number of NUCLEOTIDES deleted from or inserted into a protein coding sequence is not divisible by three, thereby causing an alteration in the READING FRAMES of the entire coding sequence downstream of the mutation. These mutations may be induced by certain types of MUTAGENS or may occur spontaneously. Mutation, Frameshift,Frame Shift Mutation,Out-of-Frame Deletion,Out-of-Frame Insertion,Out-of-Frame Mutation,Deletion, Out-of-Frame,Deletions, Out-of-Frame,Frame Shift Mutations,Frameshift Mutations,Insertion, Out-of-Frame,Insertions, Out-of-Frame,Mutation, Frame Shift,Mutation, Out-of-Frame,Mutations, Frame Shift,Mutations, Frameshift,Mutations, Out-of-Frame,Out of Frame Deletion,Out of Frame Insertion,Out of Frame Mutation,Out-of-Frame Deletions,Out-of-Frame Insertions,Out-of-Frame Mutations

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