Regulation of the Citric Acid Cycle

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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Lipids 

Answer the questions below:

Regulation of the Citric Acid Cycle
TCA regulation occurs at Steps 3 and Step 4.
Regulation at the Isocitrate Dehydrogenase
Complex (Step 3)
➤Inihibitors: NADH, ATP Why?
►Activators: ADP
Why?
Regulation at the a-Ketoglutarate Dehydrogenas
Complex (Step 4)
Inihbitors: NADH, Succinyl-CoA, ATP
Activators: ADP
Why?
Why?
Malate
Succinate
Dynaxe
AceglCal
Oulaceuse
SacrilCal
Inhibited by ATP
acetyl-CoA and NADH
Inhibited by ATP. NADIL
saccialCal citrate
X
Carve
bocitrate
a-Kengharate
X
X Control points
Inhibition of reaction
Sep respiring electron
accepton, either NAD
or FAD
Inhibited
be ATP: NADH
Stimulated
by ADP, NAD
lohibined be
ATP, NADI, and
scclot
Department of Medical Technology, Biochemistry Cluster-2022-2023
Transcribed Image Text:Regulation of the Citric Acid Cycle TCA regulation occurs at Steps 3 and Step 4. Regulation at the Isocitrate Dehydrogenase Complex (Step 3) ➤Inihibitors: NADH, ATP Why? ►Activators: ADP Why? Regulation at the a-Ketoglutarate Dehydrogenas Complex (Step 4) Inihbitors: NADH, Succinyl-CoA, ATP Activators: ADP Why? Why? Malate Succinate Dynaxe AceglCal Oulaceuse SacrilCal Inhibited by ATP acetyl-CoA and NADH Inhibited by ATP. NADIL saccialCal citrate X Carve bocitrate a-Kengharate X X Control points Inhibition of reaction Sep respiring electron accepton, either NAD or FAD Inhibited be ATP: NADH Stimulated by ADP, NAD lohibined be ATP, NADI, and scclot Department of Medical Technology, Biochemistry Cluster-2022-2023
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