Question

In: Chemistry

Please draw the reaction in which glutamate and oxaloacetate are converted to another amino acid and...

Please draw the reaction in which glutamate and oxaloacetate are converted to another amino acid and TCA intermediate. Draw the full reaction and label all reactants, enzymes, and products.

Solutions

Expert Solution

Asparate transaminase catalyzes the reversible transfer of the amino group from glutamate to oxaloacetate while repalcing the amino group of glutamate with a carbonyl group.

The reaction catalyzed by AST requires the cofactor known as pyridoxal-5-phospahte, the active form of vitamin B6. It binds covalently, but reversibly to an active-site lysine. this helps catalyze the reaction by accepting the amino group from the amino acid and the transferring it to the cabonyl compound.


Related Solutions

NADH is required for the one-step reaction by which pyruvate is converted to; A. Oxaloacetate B....
NADH is required for the one-step reaction by which pyruvate is converted to; A. Oxaloacetate B. Acetyl CoA C. Phosphoenolpyruvate D. Lactate Bacterial DNA is not bound to histones unlike eukaryotic DNA T/F? All sphingolipids have in common which of the following? A. A glycerol backbone B. Ceramide C. Phosphorylcholine D. N-acetylneuraminic acid (NANA) E. A steroid ring structure to which spingosine is attached
which of the following statements about the charge distribution on the amino acid glutamate is incorrect...
which of the following statements about the charge distribution on the amino acid glutamate is incorrect ? glutamate has three different ionizable groups at a very low pH, the most abundant form of glutamate will have net charge of +1 at a very high pH the most abundant form of glutamate will have a net charge of -2 at a pH of aprox. 3.2 glutamate will not contain any charged groups all of the above are correct
Alpha-ketoglutarate is converted to glutamate via what type of reaction? Aminolysis Transamination Glutamate synthase Isomerization
Alpha-ketoglutarate is converted to glutamate via what type of reaction? Aminolysis Transamination Glutamate synthase Isomerization
1. Consider that a molecule of glutamate can be converted to alpha ketoglutarate by the reaction...
1. Consider that a molecule of glutamate can be converted to alpha ketoglutarate by the reaction seen below: glutamate + NAD+ --> alpha-ketoglutarate + NADH + NH3+ what are the net use or production of NADH and FADH2? iN THE LIVER, what is the net production or consumption of ATP (including ATP equivalents) under typical mitochondrial conditions if any net gain of NADH and FADH2 can be used by the electron transport chain? show work for credit.
10. Glutamate is an example of an excitatory amino acid neurotransmitter that acts via direct synaptic...
10. Glutamate is an example of an excitatory amino acid neurotransmitter that acts via direct synaptic transmission when it is released from presynaptic neurons in the brain. Which of the following is a mechanism by which an action potential is LEAST likely to occur in the associated postsynaptic neuron? Summation of ionic events temporally from rapid stimulation of the presynaptic neurons that release glutamate spatially from the glutamate-releasing neurons and other neurons releasing an excitatory neurotransmitter that acts via an...
A heptapeptide is shown to have the amino acid composition: phenylalanine glutamate methionine valine lysine threonine...
A heptapeptide is shown to have the amino acid composition: phenylalanine glutamate methionine valine lysine threonine and histidine. I   treatment of the heptapeptide with cyanogen bromide yields a tetra and a tri-peptide II treatment of the tetrapeptide with dansyl chloride yields the dansyl derivative of histidine upon acid hydrolysis III treatment of the tetrapeptide with trypsin yields 2 dipeptides IV treatment of the tripeptide with carboxy peptidase yields primarily valine V a single round of Edman degradation of the tripeptide...
1. Which amino acid traveled the furthest up the TLC plate and which amino acid traveled...
1. Which amino acid traveled the furthest up the TLC plate and which amino acid traveled the least? 2. Why must use a pencil instead of pen to write on TLC plate? 3. What is the function of ninhydrin spray? 4. What are the amino acid present in the unknown solution?
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to...
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to lead(II). This reaction is facilitated by the presence of sulfuric acid, H2SO4, as shown by the reaction Pb+PbO2+2H2SO4→2PbSO4+2H2O Suppose that a fully charged lead-acid battery contains 1.50 L of 5.00 M H2SO4. What will be the concentration of H2SO4 in the battery after 3.60 A of current is drawn from the battery for 6.00 hours ?
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to...
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to lead(II). This reaction is facilitated by the presence of sulfuric acid, H2SO4, as shown by the reaction Pb+PbO2+2H2SO4→2PbSO4+2H2O Suppose that a fully charged lead-acid battery contains 1.50 L of 5.00 M H2SO4. What will be the concentration of H2SO4 in the battery after 3.30 A of current is drawn from the battery for 7.50 hours? Express your answer with the appropriate units.
In the citric acid cycle, malate is oxidized to oxaloacetate by the enzyme malate dehydrogenase, which...
In the citric acid cycle, malate is oxidized to oxaloacetate by the enzyme malate dehydrogenase, which uses NAD+ as an electron acceptor. In cells, the ratio of [NAD+]/[NADH] is kept very high. Given the following standard reduction potentials, explain why it is so important for cells to maintain this ratio. Justify your answer with words, equations and diagrams. oxaloacetate + 2H+ + 2e- -> malate E°red= -0.166 V NAD+ + H+ + 2e- > NADH E°red= -0.320
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT