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, 350.7 kDa
- Also known as
- TEL1, TELO1
- Previous symbols
- ATA, ATDC, ATC, ATD
- MANE Select transcript
- ENST00000675843.1NM_000051.4
- Locus type
- Protein-coding
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Get my Genome TestCurated reports relevant to this gene
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
▶Actionability
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
▶Actionability
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
▶Actionability
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
▶Actionability
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
Inherited Neurodegenerative Disorders
- KIF5A-Related Neurodegenerative DisorderAutosomal dominant
One of 372 genes linked to it
Caused by changes in one copy of KIF5A, which encodes a motor protein with a cargo-binding tail. Different types of change lead to different conditions: hereditary spastic paraplegia type 10, an axonal form of Charcot-Marie-Tooth disease and amyotrophic lateral sclerosis (ALS).
- ClinGen rates the link definitive
- 8 GenCC submitters rate it definitive or strong
▶Actionability
Care is symptomatic and depends on the presentation, including physiotherapy, antispasticity medicines and multidisciplinary ALS care. Each child of an affected person has a 1 in 2 chance of inheriting the change; genetic counselling helps families understand this.
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.
Sequencing ATM
2Easy
How hard ATM is to sequence with short reads, out of 100
0 · Easy100 · Hard
Almost all of ATM's exons sit where short reads map cleanly.
What adds to it: the share of ATM's exons in each kind of hard region
- MappabilityStretches where 100 or 250 bp reads cannot be placed uniquely, so a call there may be missing or wrong. On its own, a gene wholly in this kind of region would score 100.0.5%
- HomologySegmental duplications: copies elsewhere in the genome, such as paralogues and pseudogenes, at 90% identity or more. On its own, a gene wholly in this kind of region would score 60.0%
- Shared with chrYThe pseudoautosomal regions and the X-transposed region, where chrX and chrY carry the same or nearly the same sequence, so a read from one may be placed on the other. On its own, a gene wholly in this kind of region would score 60.0%
- Reference coverageGaps in the reference assembly nearby, where there is no sequence for reads to align to. On its own, a gene wholly in this kind of region would score 50.0%
- RepeatsTandem repeats and runs of one base, which reads slip on and may not span. On its own, a gene wholly in this kind of region would score 30.2.1%
- GC contentWindows under 25% or over 65% G and C, which library preparation covers thinly. On its own, a gene wholly in this kind of region would score 20.5.4%
A Dante Labs score from our own research, built on NIST's Genome in a Bottle maps of hard-to-sequence regions.How it's scoredEach bar is the share of ATM's exon bases in that kind of difficult region. Any one kind can make a gene hard on its own, and each further kind adds less: 0 when no base is in any, 100 when every base is where reads cannot be placed uniquely.
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 mappabilityRegions where 100 bp or 250 bp reads cannot be placed uniquely. (11 sites)
A whole genome covers all 146 kb of ATM, introns included, not only the 12.9 kb of exons.
Variants with a page (811)
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 |
ClinVar pathogenic variants (3,833)
The ATM variants ClinVar classifies pathogenic or likely pathogenic for any condition, reviewed by at least one submitter with criteria, and the most reviewed of them. It is ClinVar's public record of the gene, never a result.
- Pathogenic 2,826
- Pathogenic/likely pathogenic 278
- Likely pathogenic 729
| Variant | Conditions | ClinVar classification | Review status |
|---|---|---|---|
| NM_000051.4(ATM):c.2T>C (p.Met1Thr) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.67C>T (p.Arg23Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.217_218del (p.Glu73fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.332-1G>A | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.387del (p.Asp130fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.467G>A (p.Trp156Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.480_484del (p.Gln161fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.496+5G>A | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.748C>T (p.Arg250Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.790del (p.Tyr264fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.824del (p.Ser274_Leu275insTer) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1122_1123del (p.Glu376fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1158del (p.Lys387fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1355del (p.Thr452fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1396C>T (p.Gln466Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1402_1403del (p.Lys468fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1442T>G (p.Leu481Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1564_1565del (p.Glu522fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1607+1G>T | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.1782del (p.Val595fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.2152dup (p.Cys718fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.2251-2A>T | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.2284_2285del (p.Leu762fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.2413C>T (p.Arg805Ter) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
| NM_000051.4(ATM):c.2508dup (p.Ser837fs) | ATM-related cancer predisposition | Pathogenic | ★★★★3 stars out of 4 reviewed by expert panel |
See all 3,833 with every other ATM variant in ClinVar → (opens in a new tab)
Genes linked to the same conditions
- FMR1fragile X messenger ribonucleoprotein 1Shares 2 conditions
- TWNKtwinkle mtDNA helicaseShares 2 conditions
- AARS1alanyl-tRNA synthetase 1Shares 1 condition
- AARS2alanyl-tRNA synthetase 2, mitochondrialShares 1 condition
- ABCB7ATP binding cassette subfamily B member 7Shares 1 condition
- ABCD1ATP binding cassette subfamily D member 1Shares 1 condition
- ABHD16Aabhydrolase domain containing 16A, phospholipaseShares 1 condition
- ACER3alkaline ceramidase 3Shares 1 condition
- ACO2aconitase 2Shares 1 condition
- ADAadenosine deaminaseShares 1 condition
- ADARadenosine deaminase RNA specificShares 1 condition
- ADPRSADP-ribosylserine hydrolaseShares 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 2026-10-21: 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 Genome in a Bottle genome stratifications, from NIST: the sequencing difficulty score.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.21-c791e85a.
Cite this page
Dante Labs. (n.d.). ATM gene: ATM serine/threonine kinase. Retrieved 23 October 2026, from https://dantelabs.com/genes/atm
Dante Labs. ATM gene: ATM serine/threonine kinase [Internet]. [cited 23 October 2026]. Available from: https://dantelabs.com/genes/atm
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