Related Experiment Video

Updated: May 28, 2026

Yeast As a Chassis for Developing Functional Assays to Study Human P53
14:57

Yeast As a Chassis for Developing Functional Assays to Study Human P53

Published on: August 4, 2019

p53 Family: Role of Protein Isoforms in Human Cancer

Jinxiong Wei1, Elena Zaika, Alexander Zaika

  • 1Department of Surgery and Cancer Biology, Vanderbilt University Medical Center, 1255 Light Hall, 2215 Garland Avenue, Nashville, TN 37232, USA.

Journal of Nucleic Acids
|October 19, 2011
PubMed

Insights

The p53 family genes (TP53, TP63, TP73) produce diverse protein isoforms crucial for normal cell functions. Abnormal isoform expression drives cancer development and impacts treatment effectiveness.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cancer Biology

Background:

  • The p53 family, comprising TP53, TP63, and TP73, is vital in cellular regulation.
  • Alternative mRNA splicing generates diverse protein isoforms from these genes.
  • These isoforms play critical roles in normal biological processes.

Purpose of the Study:

  • To provide an overview of the isoform diversity within the p53 gene family.
  • To elucidate the role of p53 family isoforms in cancer biology.
  • To highlight the significance of these isoforms in tumor development and therapy response.

Main Methods:

  • Literature review of studies on TP53, TP63, and TP73 gene expression.
  • Analysis of alternative mRNA splicing mechanisms.
  • Review of evidence linking p53 family isoforms to tumorigenesis and cancer therapy.

Main Results:

  • TP53, TP63, and TP73 genes generate a wide array of protein isoforms.
  • These isoforms are critical regulators in normal cellular functions.
  • Aberrant expression of p53 family isoforms is implicated in cancer initiation and progression.

Conclusions:

  • p53 family isoform diversity is a key factor in cancer.
  • Understanding these isoforms is crucial for developing effective cancer therapies.
  • Further research into p53 family isoform regulation is warranted for cancer treatment strategies.

More Related Videos

Detection of Aggregation-Prone Behavior in Mutant P53 V157F Breast Cancer Cells Using Multipoint Thioflavin T Fluorescence04:56

Detection of Aggregation-Prone Behavior in Mutant P53 V157F Breast Cancer Cells Using Multipoint Thioflavin T Fluorescence

Published on: December 30, 2025

Purification of Ubiquitinated p53 Proteins from Mammalian Cells10:55

Purification of Ubiquitinated p53 Proteins from Mammalian Cells

Published on: March 21, 2022

Related Concept Videos

Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Negative Regulator Molecules01:23

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein.
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...