About TET2
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 uncertain. Select a step to read what it means.
Uncertain.The recorded classification is uncertain significance.
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 Not recorded. 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.
NM_001127208.2:c.822del is a frameshift variant in exon 3 of 11, predicted to cause a premature termination codon at position 292 (NP_001120680.1:p.(Asn275IlefsTer18)) with expected nonsense-mediated decay. TET2 has an established loss-of-function disease mechanism in the germline context, associated with an ALPS-like phenotype and hematologic malignancy susceptibility. Under ClinGen SVI PVS1 recommendations (PMC6185798), a null variant in a gene where LOF is a known mechanism of disease meets PVS1 at very strong strength.
This variant is present in gnomAD at extremely low frequency (v2.1: AF=0.0016%, 4/250,288 alleles; v4.1: AF=0.00167%, 27/1,613,714 alleles; highest subpopulation AF=0.00327% in South Asian, gnomAD v2.1). This frequency is well below the 0.1% threshold for PM2 under generic ACMG/AMP rules. No homozygotes have been observed.
No benign criterion marked as applied in the recorded assessment.
gene-specific framework lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: PVS1 very strong, PM2 supporting; combination = 1 very strong + 1 supporting, which maps to VUS.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 27 / 1,613,714 alleles. Recorded AF 1.67316e-05. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 1.59816e-05; MAF= 0.00160%, 4/250288 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 3.27097e-05; MAF= 0.00327%, 1/30572 alleles, homozygotes = 0); grpmax FAF= 2.94e-06.
Absent from gnomAD-Canada v1.0.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
1 Pathogenic. ClinVar API review status: criteria provided, single submitter.
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; COSV54404867, n = 30 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under Not recorded, with the data and sources behind each one.
28 criteria with recorded statuses: 2 met · 22 not met · 0 not assessed · 4 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_001127208.2:c.822del is a frameshift deletion in exon 3 of TET2, predicted to cause a premature termination codon (p.Asn275IlefsTer18) with expected nonsense-mediated decay, meeting PVS1 at very strong strength. TET2 loss-of-function is an established germline disease mechanism associated with ALPS-like phenotype and hematologic malignancy susceptibility.
This variant is present in gnomAD at extremely low frequency (AF=0.00167% in v4.1, 0.00160% in v2.1; no homozygotes), meeting PM2 at supporting strength.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00), but REVEL and BayesDel are not available for this deletion variant, so PP3 is not met.
This variant has been reported as Pathogenic in ClinVar by a single clinical laboratory (1-star review status). PP5 requires a 3-star expert panel review and is not met. The variant is absent from COSMIC as a somatic observation? No: COSMIC reports this variant in n=30 somatic cancer samples (COSV54404867). OncoKB classifies the variant as Likely Oncogenic with Likely Loss-of-function effect.
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in TET2, mapped onto the exon structure of NM_001127208.2. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| Ashkenazi Jewish1 / 29,588 | 3.4e-05 |
| East Asian1 / 44,842 | 2.2e-05 |
| South Asian2 / 91,068 | 2.2e-05 |
| European (non-Finnish)20 / 1,179,890 | 1.7e-05 |
| Remaining individuals1 / 62,484 | 1.6e-05 |
| European (Finnish)1 / 64,006 | 1.6e-05 |
| African/African American1 / 74,906 | 1.3e-05 |
| South Asian1 / 30,572 | 3.3e-05 |
| Admixed American1 / 34,468 | 2.9e-05 |
| European (non-Finnish)2 / 112,998 | 1.8e-05 |
This variant is present in gnomAD v4.1 (AF= 1.67316e-05; MAF= 0.00167%, 27/1613714 alleles, homozygotes = 0) and has highest observed frequency in the Ashkenazi Jewish population (AF= 3.37975e-05; MAF= 0.00338%, 1/29588 alleles, homozygotes = 0); grpmax FAF= 1.107e-05.
This variant is present in gnomAD v2.1 (AF= 1.59816e-05; MAF= 0.00160%, 4/250288 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 3.27097e-05; MAF= 0.00327%, 1/30572 alleles, homozygotes = 0); grpmax FAF= 2.94e-06.
Absent from gnomAD-Canada v1.0.
No further detail was recorded.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
3 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= 1.67316e-05; MAF= 0.00167%, 27/1613714 alleles, homozygotes = 0) and has highest observed frequency in the Ashkenazi Jewish population (AF= 3.37975e-05; MAF= 0.00338%, 1/29588 alleles, homozygotes = 0); grpmax FAF= 1.107e-05.
This variant is present in gnomAD v2.1 (AF= 1.59816e-05; MAF= 0.00160%, 4/250288 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 3.27097e-05; MAF= 0.00327%, 1/30572 alleles, homozygotes = 0); grpmax FAF= 2.94e-06.
Absent from gnomAD-Canada v1.0.
This variant has been reported in ClinVar as Pathogenic (1 clinical laboratory). (ClinVarID = 1936676)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
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; COSV54404867, n = 30 times).
This variant does not lie in a statistically significant hotspot.