what is a cyclin ? what are mitotic cyclin and G1 cyclin?
Dear Student.
Please find below the solution to the asked query.
Cyclins are class of protein family that regulates the progression of cells through various stages of the cell cycle by activating cyclin-dependent kinases (Cdk).
There are two classes of cyclins: mitotic cyclins and G1 cyclins.
Mitotic cyclins regulate progression of cell during G2. They binds to Cdks in G2, and forms a complex called Mitosis-promoting factor (MPF). This complex produce a signal for the cell to enter mitosis.
G1 cyclins regulates progression of cell from G1 to S phase of cell cycle. When the cell is ready for DNA replication, G1 cyclins starts degrading, as a result of which cell enters into S phase.
Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards.
Please find below the solution to the asked query.
Cyclins are class of protein family that regulates the progression of cells through various stages of the cell cycle by activating cyclin-dependent kinases (Cdk).
There are two classes of cyclins: mitotic cyclins and G1 cyclins.
Mitotic cyclins regulate progression of cell during G2. They binds to Cdks in G2, and forms a complex called Mitosis-promoting factor (MPF). This complex produce a signal for the cell to enter mitosis.
G1 cyclins regulates progression of cell from G1 to S phase of cell cycle. When the cell is ready for DNA replication, G1 cyclins starts degrading, as a result of which cell enters into S phase.
Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards.