Gene
ATM
ATM serine/threonine kinase
- HGNC 795↗(opens in a new tab)
- Ensembl gene ENSG00000149311↗(opens in a new tab)
- NCBI Gene 472↗(opens in a new tab)
Summary
- Cytogenetic location
- 11q22.3
- Coordinates
- Chromosome 11: 108,223,067–108,369,102 (GRCh38)
- Exons
- 63 exons across 146 kb
- Protein
- 3,056 amino acids
- Inheritance
- Autosomal dominant Autosomal recessive
- Also known as
- TEL1, TELO1
- Previous symbols
- ATA, ATDC, ATC, ATD
- MANE Select transcript
- ENST00000675843.1NM_000051.4
- Locus type
- gene with protein product
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Ataxia-Telangiectasia
- Autosomal recessive
Progressive cerebellar ataxia, telangiectasia, immunodeficiency and cancer predisposition caused by biallelic ATM changes.
- ClinGen rates the link definitive
- 8 GenCC submitters rate it definitive or strong
What knowing changes
Diagnosis guides infection prevention and immunoglobulin replacement, minimising exposure to ionising radiation, cancer and lung monitoring, and carrier testing in relatives.
Female Infertility
Diminished or absent ability of a female to achieve conception.
- ClinGen rates the link definitive
- 8 GenCC submitters rate it definitive or strong
Breast and Ovarian Cancer Genes Beyond BRCA1/2
- ATM-related cancer predispositionAutosomal dominant
A single variant in ATM moderately raises the risk of breast cancer and is linked to pancreatic and prostate cancer.
- ClinGen rates the link definitive
- 1 GenCC submitter rates it definitive or strong
What knowing changes
Enhanced breast screening is generally recommended; carriers with a partner who also carries an ATM variant may wish to know the risk of ataxia-telangiectasia in their children.
- Hereditary breast cancerAutosomal dominant
Inherited susceptibility to breast cancer caused by variants in one of several genes.
- 2 GenCC submitters rate it definitive or strong
What knowing changes
Earlier and more intensive breast screening, including MRI, may be recommended depending on the gene.
Broader groupings
Other Inborn Errors of Immunity
- Immunodeficiency Disease
One of 170 genes linked to it
Disease in which there is a deficiency or defect in the mechanisms of immunity, either cellular or humoral.
- ClinGen rates the link definitive
- 8 GenCC submitters rate it definitive or strong
What knowing changes
HSCT for SCID and severe PIDs; immunoglobulin replacement (IVIG/SCIG) for antibody deficiencies; leniolisib (Joenja, FDA 2023) for APDS; gene therapy for ADA-SCID; abatacept for CTLA4/LRBA deficiency; prophylactic antibiotics; G-CSF for CGD
Inheritance
- Autosomal dominant
- One changed copy, from either parent, is enough. A parent who has one passes it on to each child with a one-in-two chance.
- Autosomal recessive
- It takes a changed copy from each parent. With one, you are a carrier and usually unaffected; when both parents are carriers, each child has a one-in-four chance of inheriting two.
How ATM is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
- Variants with a page
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 12.9 kb of the gene's 146 kb; 9,171 of those bases code for the protein.
How a genome test reads ATM
2,935
positions in ATM where ClinVar classes a change as pathogenic or likely pathogenic
11 of them (0.4%) fall in regions short reads find hard.
- Low mappability (11 sites)Regions where 100 bp or 250 bp reads cannot be placed uniquely.
A whole genome covers all 146 kb of ATM, introns included, not only the 12.9 kb of exons.
Variants with a page (808)
The ATM variants with a page here, most review stars first. Each page describes ClinVar's public record of the variant, never a result.
| Variant | HGVS c. | Exon or intron | Position (GRCh38) | ClinVar classification | Review status |
|---|---|---|---|---|---|
| A911Rfs*19 | c.2730_2731insAG | Exon 18 | 108,268,501 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| c.2T>C | Exon 2 | 108,227,626 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.332-1G>A | Intron 4 | 108,235,669 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.496+5G>A | Intron 5 | 108,235,839 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.1122_1123del | Exon 9 | 108,248,987 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.1607+1G>T | Intron 10 | 108,251,073 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.2251-2A>T | Intron 14 | 108,257,479 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.2251-4A>G | Intron 14 | 108,257,477 | Likely pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.2466+5G>C | Intron 16 | 108,259,080 | Likely pathogenic | ★★★★3 stars out of 4 reviewed by expert panel | |
| c.2639-23_2639-21del | Intron 17 | 108,268,386 | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
Genes linked to the same conditions
- ADAadenosine deaminaseShares 1 condition
- AICDAactivation induced cytidine deaminaseShares 1 condition
- AK2adenylate kinase 2Shares 1 condition
- ANKRD31ankyrin repeat domain 31Shares 1 condition
- ARPC1Bactin related protein 2/3 complex subunit 1BShares 1 condition
- ARPC5actin related protein 2/3 complex subunit 5Shares 1 condition
- ATP6AP1ATPase H+ transporting accessory protein 1Shares 1 condition
- B2Mbeta-2-microglobulinShares 1 condition
- BACH2BACH transcriptional regulator 2Shares 1 condition
- BARD1BRCA1 associated RING domain 1Shares 1 condition
- BCL10BCL10 immune signaling adaptorShares 1 condition
- BCL11BBCL11 transcription factor BShares 1 condition
Traits linked to ATM
The Human Phenotype Ontology lists these as features of the rare conditions ATM can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Ataxia
- Difficulty articulating speech
- Progressive cerebellar ataxia
- Abnormal gait
- Abnormal speech pattern
- Abnormality of movement
- Choreoathetosis
- Glioblastoma multiforme
Show 29 more traits
- Tremor
- Anxiety
- Attention deficit
- Behavioral abnormality
- Delayed speech and language development
- Depression
- Difficulty performing quick and alternating movements
- Epilepsy
- Inability to walk
- Intention tremor
- Irritability
- Migraine
- Rise in pressure inside skull
- Slurred speech
- Abnormal pyramidal sign
- Benign neoplasm of the central nervous system
- Cancer of early nerve cells
- Cognitive impairment
- Disorder of involuntary muscle movements
- Disturbed sensory perception
- Dysgraphia
- Hallucinations
- Loss of developmental milestones
- Memory impairment
- Paralysis or weakness of one side of body
- Pins and needles feeling
- Diminished deep tendon reflex
- Dystonia
- Jerking
Abnormality of blood and blood-forming tissues
- B-cell lymphoma
- Decreased blood lymphocyte number
- Acute lymphoblastic leukemia
- Bone marrow disease
- Gastrointestinal bleeding
- Blood cancer
- Cancer of lymphatic system
- Decreased total CD4+ T cell proportion
Show 3 more traits
Abnormality of the genitourinary system
- Abnormal fallopian tube morphology
- Ovarian cancer
- Polycystic ovaries
- Abnormality of the testis
- Prostate cancer
- Urinary tract neoplasm
- Uterine cancer
- Abnormal sperm development
Show 1 more trait
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). ATM gene: ATM serine/threonine kinase. Retrieved 17 October 2026, from https://dantelabs.com/genes/atm
Dante Labs. ATM gene: ATM serine/threonine kinase [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/atm
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