A. Schneider et al., PHOSPHORYLASE-KINASE DEFICIENCY IN I-STRAIN MICE IS ASSOCIATED WITH AFRAMESHIFT MUTATION IN THE ALPHA-SUBUNIT MUSCLE ISOFORM, Nature genetics, 5(4), 1993, pp. 381-385
Heritable phosphorylase kinase (Phk) deficiency underlies a group of g
lycogenoses in humans, mice and rats that differ in mode of inheritanc
e and tissue-specificity. It is assumed that this heterogeneity is cau
sed by mutations affecting different subunits and isoforms of Phk. As
the first Phk deficiency mutation to be identified, we report a single
-nucleotide insertion in the coding sequence of the Phk alpha subunit
muscle isoform of the I-strain mouse. This mutation accounts for the v
irtually complete enzymatic deficiency, the tissue specificity and the
X-linked mode of inheritance in this mutant.