Chemicals and Drugs

Oncogene Protein p21(ras)

Transforming protein encoded by ras oncogenes. Point mutations in the cellular ras gene (c-ras) can also result in a mutant p21 protein that can transform mammalian cells. Oncogene protein p21(ras) has been directly implicated in human neoplasms, perhaps accounting for as much as 15-20% of all human tumors. This enzyme was formerly listed as EC 3.6.1.47.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Transforming protein encoded by ras oncogenes. Point mutations in the cellular ras gene (c-ras) can also result in a mutant p21 protein that can transform mammalian cells. Oncogene protein p21(ras) has been directly implicated in human neoplasms, perhaps accounting for as much as 15-20% of all human tumors. This enzyme was formerly listed as EC 3.6.1.47.

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Synonyms

20 entry terms
  • p21 Transforming Viral Protein
  • p21 v-H-ras
  • p21 v-Ha-ras
  • p21 v-Ki-ras
  • p21 v-ras
  • p21(v-H-ras)
  • p21(v-Ha-ras)
  • p21(v-K-ras)
  • p21(v-Ki-ras)
  • ras Oncogene Product p21
  • ras Oncogene Protein p21
  • ras Oncogene p21 Product
  • p21 v H ras
  • p21 v Ha ras
  • p21 v Ki ras
  • p21 v ras
  • v-H-ras, p21
  • v-Ha-ras, p21
  • v-Ki-ras, p21
  • v-ras, p21

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Aspects Covered

30 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

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Indexing Annotation

coord with specific virus

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History Note

1990

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Previous Indexing

  • Neoplasm Proteins (1980-1986)
  • Oncogene Proteins, Viral (1986-1989)

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AMA Style

References

  1. National Library of Medicine. Oncogene Protein p21(ras). Medical Subject Headings (MeSH). 2026. Unique ID D015689. http://id.nlm.nih.gov/mesh/2026/D015689
  2. Oncogene Protein p21(ras). In: Wikidata. https://www.wikidata.org/wiki/Q78188426