Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-11-14
pubmed:abstractText
We report on 54 Spanish patients with McArdle's disease from 40 unrelated families. Molecular analysis revealed that the most common R49X mutation was present in 70% of patients and 55% of alleles. The G204S mutation was less frequent and found in 14.8% of patients and 9% of mutant alleles. The W797R mutation was observed in 16.5% of patients, accounting for 13.7% of mutant alleles. Moreover, 78% of mutant alleles among Spanish patients can be identified by using polymerase chain reaction-restriction fragment length polymorphism analysis for the R49X, G204S, and W797R mutations, which makes noninvasive diagnosis possible through molecular genetic analysis of blood DNA. Six novel mutations were found. Three were missense mutations, E348K, R601W, and A703V; two nonsense mutations, E124X and Q754X; and one single base pair deletion, 533 delA. No clear genotype-phenotype correlation emerges from our study. Most of the mutations of uncharged and solvent inaccessible residues and the truncations must disrupt the basic structure of the protein. The mutations of charged residues would be expected to interfere with internal hydrogen bonding networks, introducing severe incompatible partnering that is caused by poor packing or electrostatic repulsions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0364-5134
pubmed:author
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
574-81
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:11706962-Adolescent, pubmed-meshheading:11706962-Adult, pubmed-meshheading:11706962-Aged, pubmed-meshheading:11706962-Aged, 80 and over, pubmed-meshheading:11706962-Binding Sites, pubmed-meshheading:11706962-Child, pubmed-meshheading:11706962-Female, pubmed-meshheading:11706962-Genetic Testing, pubmed-meshheading:11706962-Genotype, pubmed-meshheading:11706962-Glycogen Phosphorylase, Muscle Form, pubmed-meshheading:11706962-Glycogen Storage Disease Type V, pubmed-meshheading:11706962-Heterozygote, pubmed-meshheading:11706962-Homozygote, pubmed-meshheading:11706962-Humans, pubmed-meshheading:11706962-Male, pubmed-meshheading:11706962-Middle Aged, pubmed-meshheading:11706962-Models, Molecular, pubmed-meshheading:11706962-Mutation, pubmed-meshheading:11706962-Phenotype, pubmed-meshheading:11706962-Polymerase Chain Reaction, pubmed-meshheading:11706962-Polymorphism, Restriction Fragment Length, pubmed-meshheading:11706962-Spain
pubmed:year
2001
pubmed:articleTitle
Molecular heterogeneity of myophosphorylase deficiency (McArdle's disease): a genotype-phenotype correlation study.
pubmed:affiliation
Centro de Investigación y Sección de Neuropatología, Hospital Universitario 12 de Octubre, Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't