Step 1
Phosphorylation of glucose
Step 1: Phosphorylation of glucose
Enzyme:
Hexokinase
Step 1: Phosphorylation of glucose
Delta G:
-16.7 kJ/mol
Step 2
Isomerization of glucose 6-phosphate
Step 2: Isomerization of glucose 6-phosphate
Enzyme:
Phosphohexose isomerase
Step 2: Isomerization of glucose 6-phosphate
Delta G:
1.7 kJ/mol
Step 3
Phosphorylation of fructose 6-phosphate
Step 3: Phosphorylation of fructose 6-phosphate
Enzyme:
Phosphofructokinase-1 (PFK-1)
Step 3: Phosphorylation of fructose 6-phosphate
Delta G:
-14.2 kJ/mol
Step 4
Cleavage of fructose-1,6-bisphosphate
Step 4: Cleavage of fructose-1,6-bisphosphate
Enzyme:
Aldolase
Step 4: Cleavage of fructose-1,6-bisphosphate
Delta G:
23.8 kJ/mol
Step 5
Isomerization of triose phosphate
Step 5: Isomerization of triose phosphate
Enzyme:
Triose phosphate isomerase
Step 5: Isomerization of triose phosphate
Delta G:
7.5 kJ/mol
Step 6
Oxidation of glyceraldehyde-3-phosphate
Step 6: Oxidation of glyceraldehyde-3-phosphate
Enzyme:
Glyceraldehyde 3-phosphate dehydrogenase
Step 6: Oxidation of glyceraldehyde-3-phosphate
Delta G:
6.3 kJ/mol
Step 7
Substrate level phosphorylation of ADP
Step 7: Substrate level phosphorylation of ADP
Enzyme:
Phosphoglycerate kinase
Step 7: Substrate level phosphorylation of ADP
Delta G:
-18.5 kJ/mol
Step 8
Conversion of 3-P-glycerate to 2-P-glycerate
Step 8: Conversion of 3-P-glycerate to 2-P-glycerate
Enzyme:
Phosphoglycerate mutase
Step 8: Conversion of 3-P-glycerate to 2-P-glycerate
Delta G:
4.4 kJ/mol
Step 9
Dehydration of 2-P-glycerate to PEP
Step 9: Dehydration of 2-P-glycerate to PEP
Enzyme:
Enolase
Step 9: Dehydration of 2-P-glycerate to PEP
Delta G:
7.5 kJ/mol
Step 10`
Phosphate group transfer from PEP to ADP
Step 10: Phosphate group transfer from PEP to ADP
Enzyme:
Pyruvate kinase
Step 10: Phosphate group transfer from PEP to ADP
Delta G:
-31.4 kJ/mol