17-7674241-G-C

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong

The NM_000546.6(TP53):c.722C>G(p.Ser241Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TP53
NM_000546.6 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 1.67

Variant links:

Genes affected

TP53 (HGNC:11998): (tumor protein p53) This gene encodes a tumor suppressor protein containing transcriptional activation, DNA binding, and oligomerization domains. The encoded protein responds to diverse cellular stresses to regulate expression of target genes, thereby inducing cell cycle arrest, apoptosis, senescence, DNA repair, or changes in metabolism. Mutations in this gene are associated with a variety of human cancers, including hereditary cancers such as Li-Fraumeni syndrome. Alternative splicing of this gene and the use of alternate promoters result in multiple transcript variants and isoforms. Additional isoforms have also been shown to result from the use of alternate translation initiation codons from identical transcript variants (PMIDs: 12032546, 20937277). [provided by RefSeq, Dec 2016]

TP53 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a region_of_interest Interaction with the 53BP2 SH3 domain (size 7) in uniprot entity P53_HUMAN there are 9 pathogenic changes around while only 0 benign (100%) in NM_000546.6

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.989

PP5

Variant 17-7674241-G-C is Pathogenic according to our data. Variant chr17-7674241-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 177791.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TP53	NM_000546.6 link	c.722C>G	p.Ser241Cys	missense_variant	Exon 7 of 11	ENST00000269305.9	NP_000537.3	P04637-1K7PPA8Q53GA5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TP53	ENST00000269305.9 link	c.722C>G	p.Ser241Cys	missense_variant	Exon 7 of 11	1	NM_000546.6	ENSP00000269305.4		P04637-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461784

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Li-Fraumeni syndrome

Pathogenic:2

Jan 03, 2008

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jun 09, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 241 of the TP53 protein (p.Ser241Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with Li-Fraumeni syndrome and/or ovarian cancer (PMID: 30730202, 35451682). ClinVar contains an entry for this variant (Variation ID: 177791). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (PMID: 12826609, 29979965, 30224644) indicates that this missense variant is expected to disrupt TP53 function with a positive predictive value of 97.5%. Experimental studies have shown that this missense change affects TP53 function (PMID: 12826609, 29979965, 30224644). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Li-Fraumeni syndrome 1

Pathogenic:2

Feb 16, 2024

Myriad Genetics, Inc.

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely pathogenic. Functional studies indicate this variant impacts protein function [PMID: 29979965]. This variant is expected to disrupt protein structure [Myriad internal data]. -

Jun 18, 2022

Genome-Nilou Lab

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome

Pathogenic:2

Jul 23, 2021

Ambry Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.S241C pathogenic mutation (also known as c.722C>G), located in coding exon 6 of the TP53 gene, results from a C to G substitution at nucleotide position 722. The serine at codon 241 is replaced by cysteine, an amino acid with dissimilar properties. This variant is in the DNA binding domain of the TP53 protein and is reported to have non-functional transactivation in yeast-based assays (Kato S et al. Proc. Natl. Acad. Sci. USA. 2003 Jul;100:8424-9). Studies conducted in human cell lines indicate this alteration is deficient at growth suppression and has a dominant negative effect (Kotler E et al. Mol.Cell. 2018 Jul;71:178-190.e8; Giacomelli AO et al. Nat. Genet. 2018 Oct;50:1381-1387). This mutation has been identified in a family meeting classic Li-Fraumeni syndrome criteria (Sejben A et al. Orv Hetil 2019 Feb;160(6):228-234). This alteration has been observed numerous times as a somatic mutation in the cancerhotspots.org database (Chang MT et al. Cancer Discov. 2018 02;8:174-183). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation. -

Jun 18, 2022

Genome-Nilou Lab

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Pathogenic:1

Jan 05, 2024

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Published functional studies demonstrate a damaging effect: non-functional transactivation and impaired growth suppression activity (PMID: 12826609, 29979965, 30224644, 20407015); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 20407015, 16312222, 24997986, 11301359, 23168708, 12144684, 15564288, 2024123, 8934544, 11079169, 11389059, 15064998, 16174251, 10690522, 21552959, 10951339, 15837541, 9792155, 25839328, 23349305, 15915369, 20404136, 19509155, 25356985, 28803919, 28861920, 30840781, 30224644, 29979965, 26619011, 34273903, 15510160, 35451682, 12826609, 30730202) -

Ovarian neoplasm

Pathogenic:1

Dec 01, 2018

German Consortium for Hereditary Breast and Ovarian Cancer, University Hospital Cologne

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: research

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.52

BayesDel_noAF

Pathogenic

0.51

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.88

D;D;.;.;.;.;T;T;.;D;.;.;.;.;.;.;D;.;.;.;D

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.89

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D;D;D;.;.;.;D;D;.;D;D;D;D;D;D;D

M_CAP

Pathogenic

0.83

MetaRNN

Pathogenic

0.99

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Pathogenic

0.94

MutationAssessor

Pathogenic

3.3

.;.;.;.;.;.;.;.;.;M;.;M;M;M;.;.;M;.;.;.;.

PrimateAI

Uncertain

0.69

PROVEAN

Pathogenic

-4.7

D;D;.;.;.;.;.;.;.;D;.;.;D;D;.;.;D;.;.;D;D

REVEL

Pathogenic

0.95

Sift

Pathogenic

0.0

D;D;.;.;.;.;.;.;.;D;.;.;D;D;.;.;D;.;.;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;.

Polyphen

1.0

D;.;.;.;.;.;.;.;.;D;.;D;D;D;.;.;D;.;.;.;D

Vest4

0.92

MutPred

0.97

Loss of disorder (P = 0.0654);Loss of disorder (P = 0.0654);.;.;.;.;.;.;.;Loss of disorder (P = 0.0654);.;Loss of disorder (P = 0.0654);Loss of disorder (P = 0.0654);Loss of disorder (P = 0.0654);.;.;Loss of disorder (P = 0.0654);.;.;.;.;

MVP

0.97

MPC

0.38

ClinPred

1.0

GERP RS

3.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.98

gMVP

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

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