Phosphorylase b kinase catalyzes the phosphorylation of serine in certain substrates, including troponin I. The alpha chain may bind calmodulin.
Glycogen storage disease 9D
GSD9D
A metabolic disorder characterized by slowly progressive, predominantly distal muscle weakness and atrophy. Clinical features include exercise intolerance with early fatigability, pain, cramps and occasionally myoglobinuria.
None
The disease is caused by variants affecting the gene represented in this entry.
Glycan biosynthesis; glycogen metabolism.
Although the final Cys may be farnesylated, the terminal tripeptide is probably not removed, and the C-terminus is not methylated.
Belongs to the phosphorylase b kinase regulatory chain family.
Muscle specific. Isoform 1 is predominant in vastus lateralis muscle. Isoform 2 predominates slightly in heart, and it predominates clearly in the other tissues tested.
PHKA, PHKA1, Phosphorylase kinase alpha M subunit
Proteins
Immunology & Infectious Disease
137312Da
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