Related Experiment Videos
Prohibitin: potential role in senescence, development, and tumor suppression
J K McClung1, E R Jupe, X T Liu
1Oklahoma Medical Research Foundation, Noble Center for Biomedical Research, Oklahoma City 73104-5046, USA.
Experimental Gerontology
|March 1, 1995
Summary
Prohibitin is a conserved gene involved in cell growth and tumor suppression. Its antiproliferative activity suggests roles in cell cycle regulation, senescence, and breast tumor development.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Prohibitin is an evolutionarily conserved gene found across species from yeast to humans.
- The human prohibitin gene is located on chromosome 17 at q21.
- Prohibitin protein sequences are highly conserved between mouse, rat, and human.
Purpose of the Study:
- To summarize the known functions and characteristics of the prohibitin gene and protein.
- To highlight the involvement of prohibitin in critical cellular processes.
- To underscore the significance of prohibitin in development and disease.
Main Methods:
- Literature review of existing studies on prohibitin.
- Analysis of gene location and protein sequence homology.
- Examination of cellular localization and associated functions.
Main Results:
- Prohibitin exhibits antiproliferative activity.
- It plays a role in normal cell cycle regulation, replicative senescence, and cellular immortalization.
- Prohibitin is implicated in the development of sporadic breast tumors.
- The protein is localized to the inner mitochondrial membrane and the B cell plasma membrane (associated with IgM receptor).
Conclusions:
- Prohibitin's evolutionary conservation and widespread expression indicate fundamental importance.
- Current data suggest a functional role in diverse processes including development, senescence, and tumor suppression.
- Further research is needed to elucidate the precise functional mechanisms of prohibitin.