hoose each item that is wrong about the following statement:

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter27: Amino Acids And Proteins
Section: Chapter Questions
Problem 27.48P: Glutathione (G-SH), one of the most common tripeptides in animals, plants, and bacteria, is a...
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Choose each item that is wrong about the following statement:
"The 153 amino acid-long, single chain of the well-studied sperm whale
myoglobin molecule folds into a mostly alpha helical domain comprised
of seven alpha helices connected to one another by beta strands. The
oxygen-binding part of the myoglobin molecule is a prosthetic group
known as heme which contains an Fe3+ that is linked to the G helix of the
myoglobin chain by attaching to a His side-chain."
O There are not seven alpha helices. There are eight.
The alpha helices are not connected by beta strands. They are connected by
turns.
Heme is not a prosthetic group. Instead, heme is a post-translationally
modified amino acid.
There is not a single chain in myoglobin, there are two chains.
Heme does not contain Fe3+. Instead it contains Fe2+
Heme is not joined to the G helix. Instead it is joined to the F helix.
Myoglobin is not found in sperm whales. Instead, it is found in whale sperm.
Heme is not attached to a His side-chain of myoglobin. Instead, it is attached
to oxygen.
Transcribed Image Text:Choose each item that is wrong about the following statement: "The 153 amino acid-long, single chain of the well-studied sperm whale myoglobin molecule folds into a mostly alpha helical domain comprised of seven alpha helices connected to one another by beta strands. The oxygen-binding part of the myoglobin molecule is a prosthetic group known as heme which contains an Fe3+ that is linked to the G helix of the myoglobin chain by attaching to a His side-chain." O There are not seven alpha helices. There are eight. The alpha helices are not connected by beta strands. They are connected by turns. Heme is not a prosthetic group. Instead, heme is a post-translationally modified amino acid. There is not a single chain in myoglobin, there are two chains. Heme does not contain Fe3+. Instead it contains Fe2+ Heme is not joined to the G helix. Instead it is joined to the F helix. Myoglobin is not found in sperm whales. Instead, it is found in whale sperm. Heme is not attached to a His side-chain of myoglobin. Instead, it is attached to oxygen.
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