The tumor-suppressor protein p53 - relationship of structure to function (review)

H Sturzbecher1, W Deppert

  • 1UNIV HAMBURG,HEINRICH PETTE INST EXPTL VIROL & IMMUNOL,D-20251 HAMBURG,GERMANY.

Oncology Reports
|May 25, 2011
PubMed

Insights

Mutations in the p53 tumor suppressor gene are common in cancers. Understanding the p53 protein

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Point mutations and rearrangements in the p53 tumor suppressor gene are frequent in human cancers.
  • The p53 protein's primary role is preventing tumor formation by maintaining genetic stability.

Purpose of the Study:

  • To critically review the biochemical activities of the p53 protein.
  • To correlate these activities with the known structural properties of p53.
  • To identify knowledge gaps in the p53 structure-function relationship.

Main Methods:

  • Literature review and critical discussion of existing research on p53.
  • Analysis of biochemical activities (oligomerization, protein interactions, nucleic acid binding).
  • Comparison of biochemical functions with known structural features of the p53 polypeptide.

Main Results:

  • Several accepted biochemical activities of p53 are difficult to reconcile with its known structural features.
  • Discrepancies exist between p53's oligomerization, protein interactions, and nucleic acid binding capabilities and its structure.

Conclusions:

  • A deeper understanding of the p53 structure-function relationship is crucial.
  • Further research is needed to reconcile biochemical activities with structural properties for a complete understanding of p53's biological function.

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