Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Textbook Question
Chapter 24, Problem 36P
The glycine cleavage system is a group of four enzymes that together catalyze the following reaction:
Use the following information to determine the sequence of reactions carried out by the glycine cleavage system:
a. The first enzyme is a PLP-requiring decarboxylase.
b. The second enzyme is aminomethyltransferase. This enzyme has a lipoate coenzyme.
c. The third enzyme synthesizes N5,N10-methylene-THF and also forms +NH4.
d. The fourth enzyme is an FAD-requiring enzyme.
e. The cleavage system also requires NAD+.
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90. Draw the stereoisomers obtained from each of the following reactions:
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BA
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f) The unusual molecule [2.2.2] propellane is pictured.
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the askerisks?
3) How does this bond compare to an ordinary carbon-carbon bond (which is usually
1.54 Å long)?
H₂C
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Chapter 24 Solutions
Organic Chemistry
Ch. 24.1 - Prob. 2PCh. 24.1 - Prob. 3PCh. 24.2 - How many conjugated double bonds are there in a....Ch. 24.2 - Instead of adding to the 4a position and...Ch. 24.2 - Prob. 7PCh. 24.3 - Prob. 8PCh. 24.3 - Acetolactate synthase is another TPP-requiring...Ch. 24.3 - Acetolactate synthase transfers the acyl group of...Ch. 24.5 - Prob. 12PCh. 24.5 - The enzyme that catalyzes the C C bond cleavage...
Ch. 24.5 - Propose a mechanism for the ,-elimination reaction...Ch. 24.5 - Which compound is more easily decarboxylated?Ch. 24.5 - Explain why the ability of PLP to catalyze an...Ch. 24.5 - Explain why the ability of PLP to catalyze an...Ch. 24.6 - Ethanolamine ammonia lyase, a coenzyme...Ch. 24.6 - Prob. 19PCh. 24.7 - How do the structure of tetrahydrofolate and...Ch. 24.7 - What is the source of the methyl group in...Ch. 24.8 - Thiols such as ethanethiol and propanethiol can be...Ch. 24 - How does the metal ion in carboxypeptidase A...Ch. 24 - Prob. 23PCh. 24 - Prob. 24PCh. 24 - Prob. 25PCh. 24 - S-Adenosylmethionine (SAM) is formed from the...Ch. 24 - Prob. 27PCh. 24 - What acyl groups have we seen transferred by...Ch. 24 - Propose a mechanism for the following reaction:Ch. 24 - When transaminated, the three branched-chain amino...Ch. 24 - Draw the products of the following reaction, where...Ch. 24 - When UMP is dissolved in T2O, exchange of T for H...Ch. 24 - Dehydratase is a PLP-requiring enzyme that...Ch. 24 - In addition to the reaction mentioned in Section...Ch. 24 - PLP can catalyze both ,-elimination reactions...Ch. 24 - The glycine cleavage system is a group of four...Ch. 24 - Prob. 37PCh. 24 - FADH2 reduces , -unsaturated thioesters to...
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