p53 is a gene that codes for a protein (p53) that is an important tumor suppressor. Although the number of pathways and roles of p53 continue to expand it is, perhaps, most well known for slowing cell proliferation or inducing apoptosis if DNA damage or uncontrolled growth is detected.
p53 is a protein that acts as a tumor suppressor, helping to prevent the formation of cancerous tumors. It is often used as a marker for cancer because mutations in the p53 gene are commonly found in various types of cancer cells. Detection of p53 abnormalities can help with cancer diagnosis and prognosis.
p53 (also known as protein 53 or tumor protein 53), is a tumor suppressor protein that in humans is encoded by the TP53gene. p53 is crucial in multicellular organisms, where it regulates the cell cycle and, thus, functions as a tumor suppressorthat is involved in preventing cancer. As such, p53 has been described as "the guardian of the genome" because of its role in conserving stability by preventing genome mutation.The name p53 is in reference to its apparent molecular mass: It runs as a 53-kilodalton (kDa) protein on SDS-PAGE. But, based on calculations from its amino acid residues, p53's mass is actually only 43.7 kDa. This difference is due to the high number of prolineresidues in the protein, which slows its migration on SDS-PAGE, thus making it appear heavier than it actually is. This effect is observed with p53 from a variety of species, including humans, rodents, frogs, and fish..
The transactivation domain of p53 is responsible for activating the transcription of genes involved in cell cycle regulation, DNA repair, and apoptosis. It interacts with transcriptional coactivators and the basal transcription machinery to promote the expression of these genes in response to cellular stress or damage.
The human gene known as p53 is a tumor suppressor gene and malfunctions of it have been implicated in many cancer types. Research is using it to study the biology of cancer, as well as to develop new drug targets to cure certain cancers.In 1993, p53 protein was named Molecule of the Year by Science magazine. It is a protein that is very important for the regulation of cell cycles in humans and other multi-cellular organisms. p53 is also known as TP53 and several other names including tumor protein (EC :2.7.1.37), the "guardian of the genome", and the "Guardian Angel Gene" (because it works to prevent mutation or damage to the genome).Most recent genetic research is also promising in the search for cancer causes and treatments. The research indicates there is a relationship between development of cancer and insufficiency of the p53 gene.More than 50% of the tumors in humans show a mutation of or deletion of this gene. It is believed that various things can cause the mutations or damage/deletion of p53, such as DNA damage from chemicals, UV ray damage, and there are some known viruses that can inhibit the function of p53, such as Simian Virus 40 (SV40) and Human Papillomavirus (HPV), an STD.These viruses and DNA damage can inactivate p53, rendering it ineffective for tumor suppression.See more in related questions and links.
Humans typically have two copies of the p53 gene.
Gerard P. Zambetti has written: 'The p53 tumor suppressor pathway and cancer' -- subject(s): P53 antioncogene, P53 protein
p53 is a gene that codes for a protein (p53) that is an important tumor suppressor. Although the number of pathways and roles of p53 continue to expand it is, perhaps, most well known for slowing cell proliferation or inducing apoptosis if DNA damage or uncontrolled growth is detected.
Most average humans have two copies of the p53 gene.
p53 is a protein that acts as a tumor suppressor, helping to prevent the formation of cancerous tumors. It is often used as a marker for cancer because mutations in the p53 gene are commonly found in various types of cancer cells. Detection of p53 abnormalities can help with cancer diagnosis and prognosis.
Most average humans have two copies of the p53 gene.
Yes, p53 is a protein that plays a crucial role in regulating cell growth and preventing tumor formation.
Cells without properly functioning p53 would likely have impaired ability to control cell growth and repair damaged DNA, leading to uncontrolled cell division and potentially increased risk of developing cancer. p53 is an important tumor suppressor gene that helps regulate these processes and maintain genomic stability.
P53 it is an anzyme that monitorize the DNA and protect them from demagis.It is founded that its defective in 60% of cancer cells
A defective P53 gene is likely to cause poor regulation of cell cycles. P53 is a protein that suppresses tumor production and is implicated as a factor in cancer development. It prevents genome mutation and damage. 50% of human tumors have mutated or deleted P53 genes.
"The Guardian Angel Gene"
Loss of cell cycle control is typically an oncogenic process. For cancer to occur, the cells need to replicate beyond any normal physiological control. To answer your question, one factor that in important in controlling the cell cycle is p53. p53 is a checkpoint control in the G1 phase of the cell cycle. Defects in p53 cause a loss of cell cycle regulation and are considered an oncogenic transformation.