Mohamed Abbas, a science teacher at Senioritis.io

Mohamed Abbas
July 4, 2023
Biochemistry

Regulation of Glycolysis and Gluconeogenesis: The Role of Bifunctional Enzyme PFK2/FBPase-2

An enzyme with two different, often opposing, catalytic activities on one polypeptide chain. For instance, phosphofructokinase 2 synthesizes fructose 2,6-bisphosphate and fructose 2,6-bisphosphatase hydrolyzes it, yet both...

Mohamed Abbas
July 4, 2023
Biochemistry

Optimizing Energy Metabolism: The Dual Role of Phosphofructokinase-2 (PFK-2) in Glycolysis Regulation

produces F2,6-BP, which activates PFK-1One of two functions of bifunctional enzyme*activity favored when bifunctional enzyme is dephosphorylated The bifunctional enzyme we are referring to is likely phosphofructokinase-2...

Mohamed Abbas
July 4, 2023
Biochemistry

The Allosteric Regulator Fructose 2,6-Bisphosphate: Balancing Glycolysis and Gluconeogenesis for Cellular Energy Demands

an important allosteric regulator of glycolysis and gluconeogenesis. When present, it allosterically activates the enzyme phosphofructokinase-1, which drives glycolysis, and allosterically inhibits the enzyme fructose 1,6-bisphosphatase, which...

Mohamed Abbas
July 4, 2023
Biochemistry

The Role of the Bifunctional Enzyme in Regulating Glycolysis: Impact of Glucagon and Insulin

-half of Bifunctional enzyme converts fructose 2,6-bisphosphate to fructose-6-phosphate -Glucagon causes phosphorylation of this enzyme, leading to inactivation of the kinase and activation of the phosphatase. -Insulin...

Mohamed Abbas
July 4, 2023
Biochemistry

The Significance of cAMP as a Second Messenger in Cellular Signal Transduction

A compound formed from ATP that acts as a second messenger.Activates protein kinase A The compound we are referring to is cyclic adenosine monophosphate (cAMP) The compound...

Mohamed Abbas
July 4, 2023
Biochemistry

Regulation of Cellular Processes: The Role of cAMP in Activating Protein Kinase A and Phosphorylation of Bifunctional Enzyme

a serine/threonine kinase which is activated by cAMP (immediate effect)Leads to phosphorylation of several proteins including bifunctional enzyme One example of a serine/threonine kinase that is activated...

Mohamed Abbas
July 4, 2023
Biochemistry

Deciphering the Role of Protein Phosphatases in Insulin-Induced Cellular Responses

Enzyme that removes a phosphate group from a protein by hydrolysis.Indirectly activated by insulindephosphorylates bifunctional enzyme among others The enzyme we are referring to is known as...

Mohamed Abbas
July 4, 2023
Biochemistry

Adenosine Monophosphate (AMP): A Key Signaling Molecule for Cellular Energy Regulation and Activation of Phosphofructokinase-1 (PFK-1)

adenosine monophosphateSignals low energy in cellsallosterically activates PFK-1 Adenosine monophosphate (AMP) is a molecule that serves as a signaling molecule in cells to indicate low energy levels...