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Activating a process that destroys cyclin.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThe MPF protein turns itself off by activating a process that destroys cyclin. Since the protein needs cyclin, it is unable to work without it and it stops working.
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Describe the relative concentrations of MPF and its constituent molecules throughout the cell cycle?
MPF - complex of cyclin and cdk that initiates mitosis by phosphorylating protein and other kinases; highest concentration at metaphase Cdk - levels are constant throughout the cell cycle Cyclin - levels vary because it is broken down by MPF after anaphase
What causes the MPF complex to initiate mitosis in the cell cycle?
The decline of Mitosis-promoting factor (MPF) is due to the decline of cyclin.
What is a protein synthesized at specific times during the cell cycle that associates with a kinase to form a catalytically active complex?
A) MPF B) Cdk C) PDGF D) Protein kinase E) cyclin the answer is E, cyclin. AP Bio student.
Describe the roles of checkpoint cyclin CDK and MPF in the cell-cycle control system?
Cyclin is a regulatory protein that a kinase much be attached to. Cyclin gets its name from its cyclically fluctuating concentraion in the cell. Because of this requirement, these kinases are called cyclin-dependent kinases, CDK's. The CDK rises and falls with changes in the concentration of its cyclic partner. The first cyclin-CDK complex discovered was the MPF. The peaks of MPF activity correspond to the peaks of cyclin concentration. MPF stands for maturation-promoting factors. Basically, the rhythmic fluctuations in the abundance and activity of cell cycle control molecules pace the sequential events of the cell cycle. These regulatory molecules are proteins; kinase, and other enzymes. Particular protein kinases give the "go-ahead" signals at the G1 and G2 checkpoints.
How does the cell cycle relate to cancer growth?
A growth factor is a signaling molecule which is secreted by the cell and sensed by itself and other cells. They are capable of stimulating cellular growth, proliferation, and cellular differentiation. Usually it is a protein or a steroid hormone. Growth factors are important for regulating a variety of cellular processes.
What does the MPF protein complex activate to turn itself off?
It activates a process that destroys cyclin
Describe the relative concentrations of MPF and its constituent molecules throughout the cell cycle?
MPF - complex of cyclin and cdk that initiates mitosis by phosphorylating protein and other kinases; highest concentration at metaphase Cdk - levels are constant throughout the cell cycle Cyclin - levels vary because it is broken down by MPF after anaphase
What causes the MPF complex to initiate mitosis in the cell cycle?
The decline of Mitosis-promoting factor (MPF) is due to the decline of cyclin.
What is a protein synthesized at specific times during the cell cycle that associates with a kinase to form a catalytically active complex?
A) MPF B) Cdk C) PDGF D) Protein kinase E) cyclin the answer is E, cyclin. AP Bio student.
What does the mpf in bupivacaine mpf stand for?
I believe it is "methylparaben free"
Describe the roles of checkpoint cyclin CDK and MPF in the cell-cycle control system?
Cyclin is a regulatory protein that a kinase much be attached to. Cyclin gets its name from its cyclically fluctuating concentraion in the cell. Because of this requirement, these kinases are called cyclin-dependent kinases, CDK's. The CDK rises and falls with changes in the concentration of its cyclic partner. The first cyclin-CDK complex discovered was the MPF. The peaks of MPF activity correspond to the peaks of cyclin concentration. MPF stands for maturation-promoting factors. Basically, the rhythmic fluctuations in the abundance and activity of cell cycle control molecules pace the sequential events of the cell cycle. These regulatory molecules are proteins; kinase, and other enzymes. Particular protein kinases give the "go-ahead" signals at the G1 and G2 checkpoints.
How does the cell cycle relate to cancer growth?
A growth factor is a signaling molecule which is secreted by the cell and sensed by itself and other cells. They are capable of stimulating cellular growth, proliferation, and cellular differentiation. Usually it is a protein or a steroid hormone. Growth factors are important for regulating a variety of cellular processes.
Eplain how mpf induces the changes that occur in mitosis and describe what causes the cyclical change in mpf concentration?
MPF promotes the entrance into mitosis from the G2 phase by phosphorylating multiple proteins needed during mitosis. MPF is activated at the end of G2 by a phosphatase, which removes an inhibitory phosphate group added earlier.
What causes the decrease in the amount of cyclin at a specific point in the cell cycle?
its destruction by a process initiated by the activity of MPF complexes
How much the Cyrus knight monster?
mpf
What is the name of the proteins that regulate the cell cycle?
protein kinase are the protiens that regulate cell cycle. it has 2 subunits- a)catalytic unit called as cyclin dependent protien kinase (CDK) b) regulatory subunit called as cyclin binding unit
The substances that control the cell cycle and the entry into mitosis are known as cyclins and mpf mpf stands for?
M-phase promoting factor & Maturation promoting factor
