CHEK1

CHEK1 Gene Summary

The protein encoded by this gene belongs to the Ser/Thr protein kinase family. It is required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. This protein acts to integrate signals from ATM and ATR, two cell cycle proteins involved in DNA damage responses, that also associate with chromatin in meiotic prophase I. Phosphorylation of CDC25A protein phosphatase by this protein is required for cells to delay cell cycle progression in response to double-strand DNA breaks. Several alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2011]

Details

Type
Nonsense Mediated Decay
Official Symbol
CHEK1
Official Name
checkpoint kinase 1 [Source:HGNC Symbol;Acc:HGNC:1925]
Ensembl ID
ENSG00000149554
Bio databases IDs NCBI: 1111 Ensembl: ENSG00000149554
Aliases checkpoint kinase 1
Synonyms
checkpoint kinase 1,CHK1,OZEMA21,rad27
Species
Human, Homo sapiens

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • kinase
  • Serine/Threonine protein kinases, catalytic domain
  • kinase domain
  • protein serine/threonine kinase
  • Protein kinase (unclassified specificity)
  • protein kinase
  • Protein Kinases, catalytic domain
  • protein domain specific binding
  • enzyme
  • protein binding
  • Protein kinase domain
  • phosphorylation site

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
  • PPM1D
  • ATM
  • FBLN5
  • MAPT
  • FGFR3
  • E2F8
  • SMAD4
  • HDAC6
  • DENND1A
  • CDKN1A
disease
  • schizophrenia
  • breast carcinoma
  • neoplasia
  • cancer
  • T acute lymphoblastic leukemia
  • organismal death
  • oocyte/zygote/embryo maturation arrest 21
  • tumorigenesis
  • alveolar rhabdomyosarcoma
  • soft tissue sarcoma cancer
regulated by
  • genistein
  • ascorbic acid
  • LY294002
  • BID
  • KRAS
  • ERBB2
  • topotecan
  • MCPH1
  • CINP
  • IL6
regulates
  • GSK3B
  • AKT
  • PP2A
  • RB1
  • PCNA
  • MAD2L1
  • CASP9
  • ING1
  • BCL2L11
  • TNF
role in cell
  • expression in
  • proliferation
  • accumulation in
  • differentiation
  • phosphorylation in
  • quantity
  • apoptosis
  • survival
  • growth
  • morphology

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • intracellular membrane-bounded organelle
  • Cytoplasm
  • centrosome
  • cytosol
  • nuclear foci
  • chromosome
  • nucleoplasm
  • synaptonemal complexes
  • telomeres
  • chromatin
  • replication fork

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the CHEK1 gene, providing context for its role in the cell.

BIOLOGICAL PROCESS

Functions and activities the gene product is involved in
  • mitotic cell cycle G2/M transition DNA damage checkpoint
  • DNA repair
  • replicative senescence
  • DNA replication
  • signal transduction in response to DNA damage
  • positive regulation of cell cycle
  • protein phosphorylation
  • chromatin remodeling
  • G2/M transition of mitotic cell cycle
  • apoptotic process
  • cellular response to caffeine
  • negative regulation of DNA biosynthetic process
  • negative regulation of mitosis
  • negative regulation of gene expression, epigenetic
  • response to DNA damage stimulus
  • nucleus organization
  • regulation of cell proliferation
  • regulation of mitotic centrosome separation
  • DNA damage checkpoint
  • cellular response to mechanical stimulus
  • inner cell mass cell proliferation
  • regulation of double-strand break repair via homologous recombination
  • negative regulation of G0 to G1 transition
  • peptidyl-threonine phosphorylation

CELLULAR COMPONENT

Where in the cell the gene product is active
  • chromatin
  • condensed nuclear chromosome
  • nucleoplasm
  • replication fork
  • chromosome, telomeric region
  • nucleus
  • centrosome
  • extracellular space
  • cytoplasm
  • intracellular membrane-bounded organelle
  • cytosol
  • macromolecular complex

MOLECULAR FUNCTION

What the gene product does at the molecular level
  • ATP binding
  • protein domain specific binding
  • protein binding
  • protein kinase activity
  • protein serine/threonine kinase activity
  • histone kinase activity (H3-T11 specific)

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.