About CHEK2
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 likely benign. Select a step to read what it means.
Likely benign.A likely benign 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 CHEK2 VCEP v1.0.0. 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.
No pathogenic criterion marked as applied in the recorded assessment.
A homozygous individual for NM_007194.4:c.1095+19G>A is observed in gnomAD v4.1 (1 homozygote among 1,542,484 alleles). CHEK2 is an autosomal dominant cancer predisposition gene where biallelic pathogenic variants would be expected to cause a severe or embryonic lethal phenotype. Observation of a homozygote in a population database is inconsistent with a highly penetrant pathogenic role and supports a benign interpretation.
Computational evidence suggests no impact on splicing. SpliceAI predicts no splice alteration with a maximum delta score of 0.00 across all categories (acceptor gain, acceptor loss, donor gain, donor loss). The variant resides at position +19 in intron 10, well outside the canonical splice consensus, consistent with a neutral intronic change.
ClinVar reports NM_007194.4:c.1095+19G>A as Likely benign by 9 clinical laboratories and Benign by 3 clinical laboratories (Variation ID: 371849). Multiple independent clinical laboratories have reached a benign or likely benign classification, providing reputable source support for a benign interpretation.
Hereditary Breast, Ovarian and Pancreatic Cancer Specification v1.0.0 lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: BS2 supporting, BP4 supporting, BP6 supporting; combination = 3 supporting benign, which maps to Likely Benign.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 186 / 1,542,484 alleles. Recorded AF 0.000120585. Recorded homozygote count 1.
This variant is present in gnomAD v2.1 (AF= 0.000166616; MAF= 0.01666%, 47/282086 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 0.00094827; MAF= 0.09483%, 29/30582 alleles, homozygotes = 0); grpmax FAF= 0.00067758.
Not available in gnomAD-Canada v1.0.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
9 Likely benign · 3 Benign.
No standalone functional evidence summary is recorded in evidence_summary.functional.
This variant has not previously been reported in somatic cancers (COSMIC).
ACMG/AMP criteria under ClinGen CHEK2 VCEP v1.0.0, with the data and sources behind each one.
29 criteria with recorded statuses: 3 met · 9 not met · 7 not assessed · 10 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_007194.4:c.1095+19G>A is an intronic variant in CHEK2 located at position +19 in intron 10.
Computational evidence predicts no splicing impact: SpliceAI maximum delta score is 0.00 across all categories, consistent with a neutral intronic change (BP4_Supporting).
A homozygous individual for this variant is observed in gnomAD v4.1, which is inconsistent with a highly penetrant autosomal dominant cancer predisposition variant (BS2_Supporting).
ClinVar reports this variant as Likely benign by 9 clinical laboratories and Benign by 3 clinical laboratories (Variation ID: 371849), providing reputable source support for a benign interpretation (BP6_Supporting).
The variant is observed at population frequencies of 0.017% (gnomAD v2.1) and 0.012% (gnomAD v4.1) with the highest subpopulation frequency of 0.237% in the Middle Eastern population (gnomAD v4.1), which approaches but does not exceed the BS1 threshold of 0.3%.
No functional studies, segregation data, case-control enrichment, or variant-specific publications were identified for this variant.
Three benign supporting criteria (BP4, BP6, BS2) are met. Under generic ACMG/AMP 2015 combination rules (PMID:25741868), two or more benign supporting criteria support a Likely Benign classification.
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in CHEK2, mapped onto the exon structure of NM_007194.4. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| Middle Eastern14 / 5,910 | 0.0024 |
| South Asian81 / 89,542 | 0.00091 hom |
| Remaining individuals10 / 60,092 | 0.00017 |
| African/African American7 / 73,590 | 9.5e-05 |
| European (non-Finnish)72 / 1,115,072 | 6.5e-05 |
| Admixed American2 / 59,900 | 3.3e-05 |
| South Asian29 / 30,582 | 0.00095 |
| Remaining individuals3 / 7,190 | 0.00042 |
| African/African American4 / 24,906 | 0.00016 |
| European (non-Finnish)9 / 128,796 | 7e-05 |
| Admixed American2 / 35,374 | 5.7e-05 |
This variant is present in gnomAD v4.1 (AF= 0.000120585; MAF= 0.01206%, 186/1542484 alleles, homozygotes = 1) and has highest observed frequency in the Middle Eastern population (AF= 0.00236887; MAF= 0.23689%, 14/5910 alleles, homozygotes = 0); grpmax FAF= 0.0014315.
This variant is present in gnomAD v2.1 (AF= 0.000166616; MAF= 0.01666%, 47/282086 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 0.00094827; MAF= 0.09483%, 29/30582 alleles, homozygotes = 0); grpmax FAF= 0.00067758.
Not available in gnomAD-Canada v1.0.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
7 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= 0.000120585; MAF= 0.01206%, 186/1542484 alleles, homozygotes = 1) and has highest observed frequency in the Middle Eastern population (AF= 0.00236887; MAF= 0.23689%, 14/5910 alleles, homozygotes = 0); grpmax FAF= 0.0014315.
This variant is present in gnomAD v2.1 (AF= 0.000166616; MAF= 0.01666%, 47/282086 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 0.00094827; MAF= 0.09483%, 29/30582 alleles, homozygotes = 0); grpmax FAF= 0.00067758.
Not available in gnomAD-Canada v1.0.
This variant has been reported in ClinVar as Likely benign (9 clinical laboratories) and as Benign (3 clinical laboratories). (ClinVarID = 371849)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
This variant has not previously been reported in somatic cancers (COSMIC).