Multiple Choice
In the context of functional groups, which of the following best describes the terms 'hydrophobic' and 'hydrophilic'?
2. Molecular Representations
Functional Groups
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Which of the following functional groups is most likely to be affected by a mutation in the iron regulatory protein (IRP) that prevents it from binding to iron?
A
Iron-sulfur cluster
B
Carboxyl group
C
Hydroxyl group
D
Sulfhydryl group
Verified step by step guidance1
Understand the role of the iron regulatory protein (IRP) in cellular processes. IRPs are involved in the regulation of iron metabolism by binding to iron-sulfur clusters.
Recognize that an iron-sulfur cluster is a type of prosthetic group that contains iron and sulfur atoms. These clusters are crucial for the function of various proteins, including IRPs.
Consider the impact of a mutation in the IRP that prevents it from binding to iron. Such a mutation would likely affect the iron-sulfur cluster, as this is the component of the IRP that directly interacts with iron.
Evaluate the other functional groups listed: carboxyl group, hydroxyl group, and sulfhydryl group. These groups do not typically interact with iron in the context of IRPs, making them less likely to be affected by a mutation that impacts iron binding.
Conclude that the iron-sulfur cluster is the functional group most likely to be affected by a mutation in the IRP that prevents it from binding to iron, as it is directly involved in the protein's iron-binding capability.
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