Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Question
Chapter 24, Problem 19P
Interpretation Introduction
Interpretation:
Reaction between glycine and isovaleric acid.
Concept introduction:
Isovaleric acidemia is an autosomal recessive disorder which results in the abnormal
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G. ENZYME CLASSIFICATION.
Identify the main class of enzymes used to catalyzed the following reactions:
1. Lactate dehydrogenase:
NADH+H
NAD
HC-OH
CH3
CH
Pynnte
Lactate
2. Methylmalonyl-CoA mutase:
CH CH
SCOA
CH,CH,
SCOA
coenzyme B12
COO
COO
methylmalonyl-CoA
succinyl-CoA
3. Enolase:
0.
H–Ċ–0–P–0-
C-0–P-0- + H,0
HO–CH,
CH 6
Phosphoenolpyruvate
2-Phosphoglycerate
4. Chymotrypsin:
-0–CH,CH3 + H2O
- RCOOH + HOCH,CH3
5. Pyruvate carboxylase:
coo
• co, • ATP + H,0
H-C-H . ADP + P, + 2H
čoo
CH,
Pyruvate
Oxaleacetate
27. Working at cross-purposes . Write a balanced equation showing the effect of simultaneous activation of glycogen phosphorylase and glycogen synthase. Include the reactions catalyzed by phosphoglucomutase and UDP-glucose pyrophosphorylase.
Instructions.
Given each set of information which may include common name(s) and the reaction catalyzed, you are required to identify the main class of the specific enzyme described.
Name: citryl-CoA synthetase
Reaction: ATP + citrate + CoA = ADP + phosphate + (3S)-citryl-CoA
Name: D-xylulose reductase
Reaction: xylitol + NAD+ = D-xylulose + NADH + H+
Name: cellobiose phosphorylase
Reaction: cellobiose phosphate = α-D-glucose 1-phosphate + D-glucose
Name: carbonic anhydrase
Reaction: H2CO3 = CO2 + H2O
Other info: The enzyme catalyzes the reversible hydration of gaseous CO2 to carbonic acid, which dissociates to give hydrogencarbonate above neutral pH.
Name: pantoate activating enzyme
Reaction: ATP + (R)-pantoate = AMP + diphosphate + (R)-pantothenate.
Chapter 24 Solutions
Biochemistry
Ch. 24 - Prob. 1PCh. 24 - Prob. 2PCh. 24 - Prob. 3PCh. 24 - Prob. 4PCh. 24 - Prob. 5PCh. 24 - Prob. 6PCh. 24 - Prob. 7PCh. 24 - Prob. 8PCh. 24 - Prob. 9PCh. 24 - Prob. 10P
Ch. 24 - Prob. 11PCh. 24 - Prob. 12PCh. 24 - Prob. 13PCh. 24 - Prob. 14PCh. 24 - Prob. 15PCh. 24 - Prob. 16PCh. 24 - Prob. 17PCh. 24 - Prob. 18PCh. 24 - Prob. 19PCh. 24 - Prob. 20PCh. 24 - Prob. 21PCh. 24 - Prob. 22PCh. 24 - Prob. 23PCh. 24 - Prob. 24PCh. 24 - Prob. 25PCh. 24 - Prob. 26PCh. 24 - Prob. 27PCh. 24 - Prob. 28PCh. 24 - Prob. 29PCh. 24 - Prob. 30PCh. 24 - Prob. 31PCh. 24 - Prob. 32PCh. 24 - Prob. 33PCh. 24 - Prob. 34PCh. 24 - Prob. 35PCh. 24 - Prob. 36PCh. 24 - Prob. 37PCh. 24 - Prob. 38PCh. 24 - Prob. 39PCh. 24 - Prob. 40P
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