Phenomena and Processes

R Factors

A class of plasmids that transfer antibiotic resistance from one bacterium to another by conjugation.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A class of plasmids that transfer antibiotic resistance from one bacterium to another by conjugation.

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Classification

Broader headings

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See Also

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Synonyms

11 entry terms
  • R Factor
  • R Plasmid
  • R Plasmids
  • Resistance Factor
  • Resistance Factors
  • Factor, R
  • Factor, Resistance
  • Factors, R
  • Factors, Resistance
  • Plasmid, R
  • Plasmids, R

MeSH Record

Aspects Covered

29 allowable subheadings

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

MeSH Record

Indexing Annotation

bacterial

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History Note

78(75); was see under DRUG RESISTANCE, MICROBIAL 1975-77

MeSH Record

Previous Indexing

  • Drug Resistance, Microbial (1967-1974)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

QW 51

AMA Style

References

  1. National Library of Medicine. R Factors. Medical Subject Headings (MeSH). 2026. Unique ID D011815. http://id.nlm.nih.gov/mesh/2026/D011815
  2. R Factors. In: Wikipedia. https://en.wikipedia.org/wiki/R-factor
  3. R Factors. In: Wikidata. https://www.wikidata.org/wiki/Q3906336