About ATM
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is pathogenic. Select a step to read what it means.
Pathogenic.A pathogenic classification under the recorded framework.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is ClinGen ATM VCEP v1.5.0. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
This nonsense variant introduces a premature stop codon at p.Arg805Ter (p.R805*), well upstream of the 3' end of ATM, and ATM loss of function is an established disease mechanism in the ATM HBOP expert-panel framework. Available ATM-specific PVS1 guidance therefore supports full-strength PVS1 for this early truncating variant.
The ATM HBOP specification permits PM5 at supporting strength for truncating variants with premature termination codons upstream of p.Arg3047. This variant creates p.Arg805Ter, which is far upstream of p.Arg3047, so PM5_Supporting is met under the ATM-specific rule.
Expert panel ClinGen Hereditary Breast, Ovarian and Pancreatic Cancer Variant Curation Expert Panel, ClinGen classified as Pathogenic.
No benign criterion marked as applied in the recorded assessment.
Richards et.al., 2015 - Combining rules v1.5.0 criteria-combination framework: matched Rule4 (1 Pathogenic.Very Strong + Pathogenic.Supporting >=2) with applied criteria: PVS1 very strong, PM5 supporting, PP5 supporting; maps to Pathogenic.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 13 / 1,613,688 alleles. Recorded AF 8.05608e-06. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 3.98067e-05; MAF= 0.00398%, 10/251214 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.0003263; MAF= 0.03263%, 6/18388 alleles, homozygotes = 0); grpmax FAF= 0.00014149.
Recorded SpliceAI maximum delta score: 0.180. Refer to the recorded PP3/BP4 rationale for interpretation.
17 Pathogenic.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Loss-of-function; curated oncogenicity label: Likely Oncogenic.
This variant has previously been reported in somatic cancers (COSMIC; COSV53736642, n = 11 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under ClinGen ATM VCEP v1.5.0, with the data and sources behind each one.
28 criteria with recorded statuses: 3 met · 4 not met · 5 not assessed · 16 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
The ATM c.2413C>T (p.Arg805Ter; p.R805*) variant has been reported in ClinVar as Pathogenic by the ClinGen Hereditary Breast, Ovarian and Pancreatic Cancer Variant Curation Expert Panel and is also cataloged in a cancer knowledgebase with variant-specific somatic context.
This variant is present in gnomAD v4.1 at an overall allele frequency of 0.00081% (13/1613688) with a highest observed East Asian frequency of 0.00669% (3/44820); these values are below the ATM BS1 and BA1 thresholds but the East Asian frequency is above the ATM PM2_Supporting threshold of 0.001%.
Curated literature resources identify this variant in an ATM loss-of-function context, but no ATM-specific functional rescue data were confirmed here that meet the expert-panel requirements for PS3 or BS3.
This variant introduces a premature termination codon at Arg805, well upstream of the ATM truncation cutoff used by the expert panel, which supports PVS1 and PM5_Supporting under the ATM-specific rules; REVEL was unavailable, BayesDel was 0.588046, and no SpliceAI-based evidence was captured for a splice-specific computational call.
No criteria match.
ATM VCEP PVS1 decision tree for truncating variants in a gene with established loss-of-function mechanism
ATM PM5_Supporting for truncating variants upstream of p.Arg3047
ATM PS4 requires qualifying case-control enrichment evidence
ATM PM2_Supporting: frequency <=0.001% in gnomAD v4 dataset
ATM BA1 uses gnomAD v4 grpmax filtering AF >0.5%
ATM BS1 uses gnomAD v4 grpmax filtering AF >0.05%
ATM PS3 Moderate/Supporting rescue-failure framework
ATM PM3 point-based recessive framework
ATM PP1 segregation thresholds for recessive disease
ATM BS3 Moderate/Supporting rescue framework
ATM BP2 point-based co-occurrence framework
ATM PS1 specification for missense or matched splice events
ATM HBOP specification
ATM HBOP specification
ATM PM4 applies to stop-loss variants
ATM HBOP specification
ATM HBOP specification
ATM PP3 missense/splice computational rule
ATM HBOP specification
ATM HBOP specification
ATM HBOP specification
ATM HBOP specification
ATM HBOP specification
ATM BP4 missense/splice computational rule
ATM HBOP specification
ATM HBOP specification
ATM BP7 synonymous/deep-intronic framework
Every interpreted variant in ATM, mapped onto the exon structure of NM_000051.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| East Asian3 / 44,820 | 6.7e-05 |
| South Asian3 / 91,072 | 3.3e-05 |
| Remaining individuals1 / 62,490 | 1.6e-05 |
| European (Finnish)1 / 63,850 | 1.6e-05 |
| European (non-Finnish)5 / 1,179,898 | 4.2e-06 |
| East Asian6 / 18,388 | 0.00033 |
| South Asian2 / 30,598 | 6.5e-05 |
| European (non-Finnish)2 / 113,634 | 1.8e-05 |
This variant is present in gnomAD v4.1 (AF= 8.05608e-06; MAF= 0.00081%, 13/1613688 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 6.69344e-05; MAF= 0.00669%, 3/44820 alleles, homozygotes = 0); grpmax FAF= 1.775e-05.
This variant is present in gnomAD v2.1 (AF= 3.98067e-05; MAF= 0.00398%, 10/251214 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.0003263; MAF= 0.03263%, 6/18388 alleles, homozygotes = 0); grpmax FAF= 0.00014149.
ATM PP3 missense/splice computational rule
ATM BP4 missense/splice computational rule
ATM BP7 synonymous/deep-intronic framework
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.18). BayesDel score = 0.588046.
9 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 8.05608e-06; MAF= 0.00081%, 13/1613688 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 6.69344e-05; MAF= 0.00669%, 3/44820 alleles, homozygotes = 0); grpmax FAF= 1.775e-05.
This variant is present in gnomAD v2.1 (AF= 3.98067e-05; MAF= 0.00398%, 10/251214 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.0003263; MAF= 0.03263%, 6/18388 alleles, homozygotes = 0); grpmax FAF= 0.00014149.
This variant has been reported in ClinVar as Pathogenic (17 clinical laboratories) and as Pathogenic by ClinGen Hereditary Breast, Ovarian and Pancreatic Cancer Variant Curation Expert Panel, ClinGen (expert panel). (ClinVarID = 216021)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.18). BayesDel score = 0.588046.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Loss-of-function; curated oncogenicity label: Likely Oncogenic.
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV53736642, n = 11 times).
This variant does not lie in a statistically significant hotspot.