The p53 gene is a recessive tumor suppressor gene which functions as a key regulator for the cell cycle. In the event when only one p53 allele is mutated then the function of the p53 gene will persist and apoptosis (programmed cell death) will proceed if there are significant gene mutations in the cell. If two p53 alleles are mutated then the cell will not receive the signal to apoptose even with significant mutations and cancer will develop.
To produce food and energy for the cell
The place in your body is called the Lungs.
Proteins and lipids can be broken down and converted to various intermediates of glycolysis and the citric acid cycle (kreb's cycle).
<h3>What is Protein? </h3>
- Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues.
- Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and moving molecules from one place to another.
- The primary way that proteins differ from one another is in the order of their amino acids, which is determined by the nucleotide sequence of their genes and typically causes a protein to fold into a certain 3D structure that controls its activity.
- Protein turnover is the process through which the machinery of the cell breaks down and recycles proteins that have already been created after a finite amount of time.
- The half-life of a protein is a broad measure of a protein's lifespan. In mammalian cells, they have an average lifespan of 1-2 days but can live for minutes or years.
- Proteins that are abnormal or misfolded degrade more quickly either because they are targets for apoptosis or because they are unstable.
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