The role of ubiquitin in cell cycle control is to degrade cyclin.

Here's a step-by-step explanation:

1. The cell cycle is a series of events that take place in a cell leading to its division and duplication. It consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as Interphase) and M phase (mitosis).

2. Cyclins are a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase (CDK) enzymes.

3. Ubiquitin is a small protein that exists in all eukaryotic cells. It performs its myriad functions through conjugation to a large range of target proteins. A protein that is destined for degradation by the proteasome is tagged with multiple copies of ubiquitin.

4. This process of tagging is known as ubiquitination. Ubiquitination and subsequent proteasomal degradation of cyclin not only regulate progression through the different phases of the cell cycle, but also prevent accumulation of cyclin.

5. Therefore, the role of ubiquitin in cell cycle control is to degrade cyclin.

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The role of ubiquitin in cell cycle control is to degrade cyclin.

Here's a step-by-step explanation:

1. The cell cycle is a series of events that take place in a cell leading to its division and duplication. It consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as Interphase) and M phase (mitosis).

2. Cyclins are a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase (CDK) enzymes.

3. Ubiquitin is a small protein that exists in all eukaryotic cells. It performs its myriad functions through conjugation to a large range of target proteins. A protein that is destined for degradation by the proteasome is tagged with multiple copies of ubiquitin.

4. This process of tagging is known as ubiquitination. Ubiquitination and subsequent proteasomal degradation of cyclin not only regulate progression through the different phases of the cell cycle, but also prevent accumulation of cyclin.

5. Therefore, the role of ubiquitin in cell cycle control is to degrade cyclin.

Knowee AI · Accepted Answer

The role of ubiquitin in cell cycle control is to degrade cyclin.

Here's a step-by-step explanation:

1. The cell cycle is a series of events that take place in a cell leading to its division and duplication. It consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as Interphase) and M phase (mitosis).

2. Cyclins are a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase (CDK) enzymes.

3. Ubiquitin is a small protein that exists in all eukaryotic cells. It performs its myriad functions through conjugation to a large range of target proteins. A protein that is destined for degradation by the proteasome is tagged with multiple copies of ubiquitin.

4. This process of tagging is known as ubiquitination. Ubiquitination and subsequent proteasomal degradation of cyclin not only regulate progression through the different phases of the cell cycle, but also prevent accumulation of cyclin.

5. Therefore, the role of ubiquitin in cell cycle control is to degrade cyclin.

The role of ubiquitin in cell cycle control is to:Group of answer choicesstimulate cyclin synthesisdephosphorylate cyclindegrade cyclinphosphorylate cyclin

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