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Substance Name: Phosphorylase a
RN: 9032-10-4


  • The active form of GLYCOGEN PHOSPHORYLASE that is derived from the phosphorylation of PHOSPHORYLASE B. Phosphorylase a is deactivated via hydrolysis of phosphoserine by PHOSPHORYLASE PHOSPHATASE to form PHOSPHORYLASE B.

Molecular Formula

  • Unspecified

Classification Code

  • TSCA Flag XU (Exempt from Reporting under Chemical Data Reporting Rule)
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Names and Synonyms

MeSH Heading

  • Phosphorylase a


  • EINECS 232-878-8
  • Phosphorylase a

Systematic Name

  • Phosphorylase a

Registry Numbers

CAS Registry Number

  • 9032-10-4

System Generated Number

  • 0009032104