Cat No.
NATE-0559
Description
Phosphorylase kinase (PhK) is a serine/threonine-specific protein kinase which activates glycogen phosphorylase to release glucose-1-phosphate from glycogen. PhK phosphorylates glycogen phosphorylase at two serine residues, triggering a conformational shift which favors the more active glycogen phosphorylase “a” form over the less active glycogen phosphorylase b.
Abbr
PHK, Native (Rabbit)
Alias
PHK; STK17
Source
Rabbit muscle
Species
Rabbit
Form
Lyophilized powder containing (NH4)2SO4, sucrose, β-glycerophosphate and dithioerythritol
Enzyme Commission Number
EC 2.7.1.38
Bio-activity
> 60 units/mg protein
CAS No.
9001-88-1
Unit Definition
One unit will form 1.0 μmolar unit of phosphorylase a from phosphorylase b per min at pH 7.7 at 30°C in the presence of ATP.
Applications
Phosphorylase kinase from rabbit muscle has been used in a study to assess features of glycogen phosphorylase. It has also been used in a study to investigate the activation of different forms of muscle phosphorylase kinase by actin.
Synonyms
Phosphorylase Kinase; dephosphophosphorylase kinase; glycogen phosphorylase kinase; PHK; phosphorylase b kinase; phosphorylase B kinase; phosphorylase kinase (phosphorylating); STK17; EC 2.7.11.19; EC 2.7.1.38; 9001-88-1
