About TP53
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 pathogenic. Select a step to read what it means.
Likely pathogenic.A likely 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 TP53 VCEP v2.4. 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_000546.6:c.610G>T is a nonsense variant producing a premature termination codon at p.Glu204Ter. The PTC is upstream of p.Lys351 (codon 351) and is located in exon 6, not in exon 11 or the 3'-most 50 nucleotides of exon 10, and is therefore predicted to undergo nonsense-mediated decay. Per the TP53 VCEP PVS1 flowchart (Figure 1, version 2.4), nonsense variants upstream of p.Lys351 predicted to undergo NMD are assigned PVS1 at very strong strength.
The variant is absent from gnomAD v2.1 (exomes), gnomAD v4.1 (exomes), and gnomAD-Canada v1.0 (genomes), yielding an allele frequency of 0. This is below the VCEP PM2_Supporting threshold of <0.00003 (0.003%). No single genetic ancestry group has multiple alleles with frequency >0.00004.
No benign criterion marked as applied in the recorded assessment.
ClinGen TP53 Expert Panel Specifications to the ACMG/AMP Variant Interpretation Guidelines for TP53 Version 2.4 v2.4 point-based framework: PVS1 very strong (+8) + PM2 supporting (+1) = 9 points, which maps to Likely Pathogenic.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1 allele counts were not recorded for this variant.
Absent from gnomAD v2.1.
Absent from gnomAD-Canada v1.0.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
2 Pathogenic. ClinVar API review status: criteria provided, multiple submitters, no conflicts.
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; COSV52679869, n = 100 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under ClinGen TP53 VCEP v2.4, with the data and sources behind each one.
29 criteria with recorded statuses: 2 met · 9 not met · 0 not assessed · 18 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000546.6:c.610G>T (p.Glu204Ter) is a nonsense variant in exon 6 of TP53, producing a premature termination codon at position 204 that is predicted to undergo nonsense-mediated decay, satisfying PVS1 at very strong strength per the TP53 VCEP PVS1 flowchart.
The variant is absent from all gnomAD population databases (v2.1, v4.1, Canada v1.0), meeting PM2 at supporting strength under the VCEP threshold of <0.00003.
The variant has been observed as a recurrent somatic mutation in COSMIC (n=100, COSV52679869) and is classified as Pathogenic by two clinical laboratories in ClinVar (ClinVarID 977783), consistent with a deleterious truncating effect.
No proband phenotype data, segregation information, de novo observations, or VAF data are available to support PS2, PS4, PP1, or PP4 scoring under the VCEP point-based system.
The VCEP functional (PS3/BS3) and in silico (PP3/BP4/BP7) criteria are limited to missense variants, in-frame deletions, synonymous variants, and intronic variants by the framework specifications and do not apply to nonsense variants. The truncating consequence is fully captured by PVS1.
Under the Tavtigian point-based classification system used by the TP53 VCEP, PVS1 (very strong = 8 points) plus PM2 (supporting = 1 point) yields a total of 9 points, which falls in the Likely Pathogenic range (6-9 points).
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in TP53, mapped onto the exon structure of NM_000546.6. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
Absent from gnomAD v4.1.
Absent from gnomAD v2.1.
Absent from gnomAD-Canada v1.0.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). BayesDel score = 0.66.
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.
Truncating mutations are a subgroup within the disruptive mutation group and include nonsense (mutation leading to a stop codon), frameshift, and splice-site mutations. Truncating mutations lead to nonfunctional protein and thereby to a loss of function about normally functioning p53.
Results section; Supplementary Table S1 (not reviewed)
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.
Absent from gnomAD v4.1.
Absent from gnomAD v2.1.
Absent from gnomAD-Canada v1.0.
This variant has been reported in ClinVar as Pathogenic (2 clinical laboratories). (ClinVarID = 977783)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). BayesDel score = 0.66.
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; COSV52679869, n = 100 times).
This variant does not lie in a statistically significant hotspot.