After several years of serving the research community, our ActiveDriverDB database will be retired on May 1st 2026. Please make sure to download any data you need and update your links or workflows before that date.
We want to sincerely thank all our users for their support, feedback, and collaboration over the years — your contributions have been invaluable to this project. A special thank you to Dr. Michal Krassowski for leading the development of our open-source software and database.
For any questions or assistance, please contact Jüri Reimand (juri.reimand@utoronto.ca).
PHKB (NM_001031835) - phosphorylase kinase regulatory subunit beta
Phosphorylase B Kinase Regulatory Subunit Beta Isoform B
Legend
Protein
Kinases
Sites
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Interactions
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PTM Interaction Network Visualisation
Protein summary
Phosphorylase kinase is a polymer of 16 subunits, four each of alpha, beta, gamma and delta. The alpha subunit includes the skeletal muscle and hepatic isoforms, encoded by two different genes. The beta subunit is the same in both the muscle and hepatic isoforms, encoded by this gene, which is a member of the phosphorylase b kinase regulatory subunit family. The gamma subunit also includes the skeletal muscle and hepatic isoforms, encoded by two different genes. The delta subunit is a calmodulin and can be encoded by three different genes. The gamma subunits contain the active site of the enzyme, whereas the alpha and beta subunits have regulatory functions controlled by phosphorylation. The delta subunit mediates the dependence of the enzyme on calcium concentration. Mutations in this gene cause glycogen storage disease type 9B, also known as phosphorylase kinase deficiency of liver and muscle. Alternatively spliced transcript variants encoding different isoforms have been identified in this gene. Two pseudogenes have been found on chromosomes 14 and 20, respectively.[provided by RefSeq, Feb 2010].
- Strand
- +
- Chromosome
- 16
- Protein
- 1086 residues
- All mutations
- 233
- PTM sites
- 22
- CDS
- 47,497,849 - 47,733,277
- Transcription
- 47,495,209 - 47,735,434
Usage summary
Network
PTM site
Kinases group
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Kinase, PTM site or protein
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