Chemicals and Drugs

Guide CRISPR-Cas Systems RNA

A component of CRISPR-Cas SYSTEMS. Cas endodeoxyribonucleases assemble with a guide RNA complex, a hybrid of CRISPR RNA (crRNA) and transactivating crRNA (tracrRNA) molecules, to form an active complex that cleaves DNA. crRNA and tracrRNA can be synthetically fused into a single RNA molecule, namely single guide RNA. Synthetic sgRNA is used with CRISPR-Cas SYSTEMS for targeted GENE EDITING.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A component of CRISPR-Cas SYSTEMS. Cas endodeoxyribonucleases assemble with a guide RNA complex, a hybrid of CRISPR RNA (crRNA) and transactivating crRNA (tracrRNA) molecules, to form an active complex that cleaves DNA. crRNA and tracrRNA can be synthetically fused into a single RNA molecule, namely single guide RNA. Synthetic sgRNA is used with CRISPR-Cas SYSTEMS for targeted GENE EDITING.

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Synonyms

20 entry terms
  • Guide RNA (CRISPR-Cas Systems)
  • Guide RNA, CRISPR-Cas Systems
  • RNA, Guide (CRISPR-Cas Systems)
  • RNA, Guide, CRISPR-Cas Systems
  • Guide RNA, CRISPR Cas Systems
  • CRISPR Guide RNA
  • CRISPR-Cas Systems sgRNA (Single Guide RNA)
  • RNA, CRISPR Guide
  • RNA, Single Guide
  • RNA, Single-Guide
  • Single Guide RNA
  • Single-Guide RNA
  • Transactivating crRNA
  • crRNA
  • crRNA, Transactivating
  • sgRNA (CRISPR-Cas Systems)
  • sgRNA (Single-Guide RNA)
  • tracrRNA
  • Guide RNA, CRISPR
  • Guide RNA, Single

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Aspects Covered

31 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, 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.

MeSH Record

Indexing Annotation

do not confuse with RNA, GUIDE, KINETOPLASTIDA; do not confuse sgRNA (SINGLE-GUIDE RNA) with sgRNA (SUBGENOMIC RNA)

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History Note

2023

MeSH Record

Previous Indexing

  • CRISPR-Cas Systems (2014-2022)
  • RNA, Guide, CRISPR-Cas Systems (2008-2022)

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References

  1. National Library of Medicine. Guide CRISPR-Cas Systems RNA. Medical Subject Headings (MeSH). 2026. Unique ID D000094704. http://id.nlm.nih.gov/mesh/2026/D000094704
  2. Guide CRISPR-Cas Systems RNA. In: Wikidata. https://www.wikidata.org/wiki/Q116847642