Evidence Repository
The ClinGen Evidence Repository is an FDA-recognized human genetic variant database containing expert-curated assertions regarding variants' pathogenicity and supporting evidence summaries. [Disclaimer]
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  • Gene obtained from curated document aligns with the Allele Registry but not with ClinVar data
  • No CSPEC computer assertion could be determined for this classification!

Variant: NM_000546.5(TP53):c.245C>T (p.Pro82Leu)

CA000080

182946 (ClinVar)

Gene: TP53
Condition: Li-Fraumeni syndrome
Inheritance Mode: Autosomal dominant inheritance
Link to MONDO
UUID: 9c16efaa-0151-4cfa-a50b-acebbb823912
Approved on: 2024-08-05
Published on: 2024-08-05

HGVS expressions

NM_000546.5:c.245C>T
NM_000546.5(TP53):c.245C>T (p.Pro82Leu)
NC_000017.11:g.7676124G>A
CM000679.2:g.7676124G>A
NC_000017.10:g.7579442G>A
CM000679.1:g.7579442G>A
NC_000017.9:g.7520167G>A
NG_017013.2:g.16427C>T
ENST00000503591.2:c.245C>T
ENST00000508793.6:c.245C>T
ENST00000509690.6:c.-21-888C>T
ENST00000514944.6:c.96+258C>T
ENST00000604348.6:c.245C>T
ENST00000269305.9:c.245C>T
ENST00000269305.8:c.245C>T
ENST00000359597.8:c.245C>T
ENST00000413465.6:c.245C>T
ENST00000420246.6:c.245C>T
ENST00000445888.6:c.245C>T
ENST00000455263.6:c.245C>T
ENST00000503591.1:c.245C>T
ENST00000505014.5:n.501C>T
ENST00000508793.5:c.245C>T
ENST00000509690.5:c.-21-888C>T
ENST00000514944.5:c.96+258C>T
ENST00000604348.5:c.245C>T
ENST00000610292.4:c.128C>T
ENST00000610538.4:c.128C>T
ENST00000615910.4:c.245C>T
ENST00000617185.4:c.245C>T
ENST00000619485.4:c.128C>T
ENST00000620739.4:c.128C>T
ENST00000622645.4:c.128C>T
ENST00000635293.1:c.128C>T
NM_001126112.2:c.245C>T
NM_001126113.2:c.245C>T
NM_001126114.2:c.245C>T
NM_001126118.1:c.128C>T
NM_001276695.1:c.128C>T
NM_001276696.1:c.128C>T
NM_001276760.1:c.128C>T
NM_001276761.1:c.128C>T
NM_001276695.2:c.128C>T
NM_001276696.2:c.128C>T
NM_001276760.2:c.128C>T
NM_001276761.2:c.128C>T
NM_000546.6:c.245C>T
NM_001126112.3:c.245C>T
NM_001126113.3:c.245C>T
NM_001126114.3:c.245C>T
NM_001126118.2:c.128C>T
NM_001276695.3:c.128C>T
NM_001276696.3:c.128C>T
NM_001276760.3:c.128C>T
NM_001276761.3:c.128C>T

Likely Benign

Met criteria codes 4
BS3 BS2 BP4 PM2_Supporting
Not Met criteria codes 12
BS4 BS1 PS2 PS4 PS1 PS3 BA1 PP4 PP1 PP3 PM1 PM5

Evidence Links 0

Expert Panel

Criteria Specification Information

Criteria Specification: ClinGen TP53 Expert Panel Specifications to the ACMG/AMP Variant Interpretation Guidelines for TP53 Version 2.0.0

Criteria Specification Approval History
Criteria Specifications for this VCEP
Evidence submitted by expert panel
TP53 VCEP
The NM_000546.6: c.245C>T variant in TP53 is a missense variant predicted to cause substitution of proline by leucine at amino acid 82 (p.Pro82Leu). This variant has been observed in 4-7 heterozygous unrelated females from the same data source with no personal history of cancer prior to age 60 years and no personal history of sarcoma at any age (BS2_Moderate; Internal Lab Contributors: SCV000215716.6). This variant has an allele frequency of 0.00003335 (5/59976 alleles) in the Admixed American population in gnomAD v4.1.0 which is lower than the Clingen TP53 VCEP threshold (<0.00004) for PM2_Supporting, and therefore meets this criterion (PM2_Supporting). In vitro assays performed in yeast and/or human cell lines showed functional transactivation and retained growth suppression activity indicating that this variant does not impact protein function (BS3; PMIDs: 12826609, 29979965, 30224644). Computational predictor scores (BayesDel = 0.0708; Align GVGD Class C0) are below the recommended thresholds (BayesDel < 0.16 and an Align GVGD Class ≤ 55), evidence that does not predict a damaging effect on TP53 via protein change. SpliceAI predictor score of [0.01] predicts that the variant has no impact on splicing (score threshold <0.210) (BP4). In summary, this variant meets the criteria to be classified as Likely Benign for Li Fraumeni Syndrome based on the ACMG/AMP criteria applied, as specified by the ClinGen TP53 VCEP: BS2_moderate, PM2_Supporting BS3, BP4, (Bayesian Points: -6; VCEP specifications version 2.0; 7/24/2024).
Met criteria codes
BS3
In vitro assays performed in yeast and/or human cell lines showed functional transactivation and retained growth suppression activity indicating that this variant does not impact protein function (PMIDs: 12826609, 29979965, 30224644) (BS3)
BS2
BS2_MODERATE This variant has been observed in 4-7 heterozygous unrelated females from the same data source with no personal history of cancer prior to age 60 years and no personal history of sarcoma at any age (BS2_Moderate; Internal Lab Contributors: SCV000215716.6).
BP4
Computational predictor scores (BayesDel = 0.0708; Align GVGD Class C0) are below the recommended thresholds (BayesDel < 0.16 and an Align GVGD Class ≤ 55), evidence that does not predict a damaging effect on TP53 via protein change. SpliceAI predictor score of [0.01] predicts that the variant has no impact on splicing (score threshold <0.210) (BP4).
PM2_Supporting
This variant has an allele frequency of 0.00003335 (5/59976 alleles) in the Admixed American population in gnomAD v4.1.0 which is lower than the Clingen TP53 VCEP threshold (<0.00004) for PM2_Supporting, and therefore meets this criterion (PM2_Supporting).
Not Met criteria codes
BS4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BS1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS2
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PS3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
BA1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PP4
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PP1
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PP3
No code specific comments provided, please refer to the summary above or general recommendations provided in the guideline
PM1
This variant does not reside within a region of TP53 that is defined as a mutational hotspot by the ClinGen TP53 VCEP (PM1 not met).
PM5
3 different missense variants (c.245C>G; p.Pro82Arg;c.244C>T; p.Pro82Ser; c.244C>G; p.Pro82Ala) in the same codon have been reported (ClinVar Variation ID 458530, 1021579, 482216). However, the variants have not yet been curated to determine if they would be classified as pathogenic or likely pathogenic by the ClinGen TP53 VCEP’s specifications (PM5 not evaluated).
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