Rate-determining Regulators Flashcards
Fructose-1,6-bisphosphatase (Gluconeogenesis)
- AMP, F-2,6-BP
Isocitrate dehydrogenase (TCA)
+ ADP
- ATP, NADH
Glycogen Synthase (Glycogenesis)
+ G-6-p, insulin, cortisol
- epinephrine, glucagon
Glycogen phosphorylase (Glycogenolysis)
+ epinephrine, glucagon, AMP
- G-6-P, insulin, ATP
G6PD (HMP)
+ NADP+
- NADPH
Carbamoyl phosphate synthase 2 (de novo pyrimidine)
+ ATP, PRPP
- UTP
Glutamine-PRPP amidotransferase (de novo purine)
- AMP, IMP, GMP
Carbamoyl phosphate synthase 1 (urea cycle)
+ N-acetylglutamate
Acetyl-CoA carboxylase (fatty acid synthesis)
+ insulin, citrate
- glucagon, palmitoyl-CoA
HMG-CoA synthase (Ketogenesis)
No regulators
HMG-CoA reductase (cholesterol synthesis)
+ insulin, thyroxine
- glucagon, cholesterol
Phosphofructokinase 1 (glycolysis)
+ AMP, F-2,6-bp
- ATP, citrate