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 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 ClinGen TP53 VCEP v2.4.0. 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 missense variant affects TP53 codon 282, one of the codons explicitly designated by the TP53 VCEP as a mutational hotspot for PM1 at Moderate strength.
This variant is rare in population databases. In gnomAD v4.1, the overall allele frequency is 5.58e-06, which is below the TP53 PM2 threshold of 3.0e-05, and the highest observed subpopulation frequency is 2.23e-05, which is below the 4.0e-05 subpopulation threshold. gnomAD v2.1 shows 1 allele among 251444 alleles (3.98e-06).
Computational evidence supports a deleterious effect. The TP53 VCEP PP3/BP4 spreadsheet assigns PP3 to c.845G>A; BayesDel is 0.477696, above the TP53 pathogenic threshold of 0.16, REVEL is high at 0.887, and SpliceAI shows no predicted splice effect (max delta score 0.00).
No benign criterion marked as applied in the recorded assessment.
Tavtigian et.al., 2020 - Bayesian adaptation of Richards et.al., 2015 v2.4.0 point-based framework: PM1 moderate (+2) + PM2 supporting (+1) + PP3 supporting (+1) = 4 points, which maps to VUS.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 9 / 1,613,956 alleles. Recorded AF 5.57636e-06. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 3.97703e-06; MAF= 0.00040%, 1/251444 alleles, homozygotes = 0) and has highest observed frequency in the European (Finnish) population (AF= 4.61979e-05; MAF= 0.00462%, 1/21646 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
11 Uncertain significance · 2 Likely pathogenic · 1 Uncertain Significance.
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; COSV52689673, n = 46 times).
This variant lies in a statistically significant hotspot.
ACMG/AMP criteria under ClinGen TP53 VCEP v2.4.0, with the data and sources behind each one.
28 criteria with recorded statuses: 3 met · 5 not met · 8 not assessed · 12 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
The TP53 c.845G>A (p.Arg282Gln) variant has been reported in ClinVar with conflicting germline classifications and is also described in somatic cancer literature at a recurrent TP53 hotspot residue.
This variant is rare in population databases, with an allele frequency of 5.58e-06 in gnomAD v4.1 and 3.98e-06 in gnomAD v2.1, which supports PM2 at Supporting strength under the TP53 VCEP thresholds.
Available functional evidence is mixed and does not meet TP53 VCEP criteria for either damaging or benign functional evidence; the TP53 functional worksheet assigns p.Arg282Gln as 'No evidence' for PS3/BS3.
Computational evidence supports a deleterious effect because the TP53 VCEP in silico worksheet assigns PP3 to c.845G>A, BayesDel is 0.477696, REVEL is 0.887, and SpliceAI predicts no meaningful splice impact.
No criteria match.
TP53 PM1_Moderate applies to missense variants at codon 282.
TP53 PM2_Supporting applies when AF <0.00003 and no qualifying subpopulation exceeds 0.00004.
For TP53 missense variants, PP3 applies per the TP53 VCEP in silico framework and spreadsheet assignment.
Apply TP53 PS3 only when functional assay combinations satisfy the VCEP worksheet/flowchart criteria.
TP53 BA1 requires FAF >=0.001 in a qualifying subpopulation.
TP53 BS1 requires qualifying FAF >=0.0003 and <0.001.
Apply TP53 BS3 only when functional assay combinations satisfy the VCEP worksheet/flowchart criteria for retained function.
BP4 is not met when the TP53 VCEP in silico framework assigns PP3.
PS1 requires the same amino acid change as an established TP53 VCEP pathogenic or likely pathogenic variant.
TP53 PS2 requires variant-specific point-scored de novo evidence.
TP53 PS4 requires 1 to >=8 points from qualifying proband observations.
TP53 PM5 requires qualifying same-residue missense comparators previously determined pathogenic or likely pathogenic under TP53 VCEP specifications.
TP53 PP1 requires 3-4, 5-6, or >=7 informative meioses depending on strength.
TP53 PP4 applies to qualifying low-VAF observations in blood.
TP53 BS2 requires 2-3, 4-7, or >=8 unrelated unaffected older females from a single source depending on strength.
TP53 BS4 requires lack of segregation in affected family members with LFS-associated cancers.
TP53 PVS1 decision tree applies to null/splice classes, not this missense change.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
Not applicable for TP53 VCEP.
TP53 BP7 applies only to synonymous or qualifying intronic variants.
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 |
|---|
| East Asian1 / 44,858 | 2.2e-05 |
| European (Finnish)1 / 64,030 | 1.6e-05 |
| African/African American1 / 74,898 | 1.3e-05 |
| European (non-Finnish)6 / 1,180,030 | 5.1e-06 |
| European (Finnish)1 / 21,646 | 4.6e-05 |
This variant is present in gnomAD v4.1 (AF= 5.57636e-06; MAF= 0.00056%, 9/1613956 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 2.22926e-05; MAF= 0.00223%, 1/44858 alleles, homozygotes = 0); grpmax FAF= 1.83e-06.
This variant is present in gnomAD v2.1 (AF= 3.97703e-06; MAF= 0.00040%, 1/251444 alleles, homozygotes = 0) and has highest observed frequency in the European (Finnish) population (AF= 4.61979e-05; MAF= 0.00462%, 1/21646 alleles, homozygotes = 0).
For TP53 missense variants, PP3 applies per the TP53 VCEP in silico framework and spreadsheet assignment.
BP4 is not met when the TP53 VCEP in silico framework assigns PP3.
TP53 BP7 applies only to synonymous or qualifying intronic variants.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.887. BayesDel score = 0.477696.
8 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= 5.57636e-06; MAF= 0.00056%, 9/1613956 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 2.22926e-05; MAF= 0.00223%, 1/44858 alleles, homozygotes = 0); grpmax FAF= 1.83e-06.
This variant is present in gnomAD v2.1 (AF= 3.97703e-06; MAF= 0.00040%, 1/251444 alleles, homozygotes = 0) and has highest observed frequency in the European (Finnish) population (AF= 4.61979e-05; MAF= 0.00462%, 1/21646 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Uncertain significance (11 clinical laboratories) and as Likely pathogenic (2 clinical laboratories) and as Uncertain Significance (1 clinical laboratory). (ClinVarID = 237956)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.887. BayesDel score = 0.477696.
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 lies in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV52689673, n = 46 times).
This variant lies in a statistically significant hotspot.