Chemicals and Drugs

Checkpoint Kinase 1

A serine/threonine-specific protein kinase which is encoded by the CHEK1 gene in humans. Checkpoint kinase 1 (also known as Chk1) coordinates DNA damage response and cell cycle checkpoint response. Under these conditions, activation of Chk1 results in the initiation of cell cycle checkpoints, cell cycle arrest, DNA repair and cell death, to prevent damaged cells from progressing through the cell cycle.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A serine/threonine-specific protein kinase which is encoded by the CHEK1 gene in humans. Checkpoint kinase 1 (also known as Chk1) coordinates DNA damage response and cell cycle checkpoint response. Under these conditions, activation of Chk1 results in the initiation of cell cycle checkpoints, cell cycle arrest, DNA repair and cell death, to prevent damaged cells from progressing through the cell cycle.

MeSH Record

Classification

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MeSH Record

Synonyms

4 entry terms
  • Checkpoint-1 Kinase
  • Chk1 Kinase
  • Chk1 Protein Kinase
  • Protein Kinase, Chk1

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, 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

History Note

2017 (2004)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Checkpoint Kinase 1. Medical Subject Headings (MeSH). 2026. Unique ID D000071877. http://id.nlm.nih.gov/mesh/2026/D000071877
  2. Checkpoint Kinase 1. In: Wikidata. https://www.wikidata.org/wiki/Q21109168