rs750578863
Variant summary
Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2
The NM_000546.6(TP53):c.891C>T(p.His297His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,614,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_000546.6 synonymous
Scores
Clinical Significance
Conservation
Publications
- breast cancerInheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
- Li-Fraumeni syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet
- Li-Fraumeni syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp
- adrenocortical carcinoma, hereditaryInheritance: AD Classification: STRONG Submitted by: Ambry Genetics
- sarcomaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- bone marrow failure syndrome 5Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- colorectal cancerInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- choroid plexus carcinomaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Benign. The variant received -17 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| TP53 | NM_000546.6 | c.891C>T | p.His297His | synonymous_variant | Exon 8 of 11 | ENST00000269305.9 | NP_000537.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| TP53 | ENST00000269305.9 | c.891C>T | p.His297His | synonymous_variant | Exon 8 of 11 | 1 | NM_000546.6 | ENSP00000269305.4 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152108Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251490 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461894Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8AN XY: 727248 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152226Hom.: 0 Cov.: 31 AF XY: 0.0000269 AC XY: 2AN XY: 74434 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Benign:4
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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Li-Fraumeni syndrome 1 Benign:2
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This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
not specified Benign:2
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Li-Fraumeni syndrome Benign:2
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not provided Benign:1
This variant is associated with the following publications: (PMID: 26010451, 20025891, 1429209) -
Malignant tumor of breast Benign:1
The TP53 p.His297= variant was not identified in the literature nor was it identified in the Cosmic, LOVD 3.0, UMD TP53 Mutation Database, or Database of germline p53 mutations databases. The variant was identified in dbSBP (ID: rs750578863) as “With Likely benign allele,” ClinVar (as likely benign by Ambry Genetics and GeneDx), Clinvitae, and IARC TP53 Database. The variant was identified in control databases in 4 of 277226 chromosomes at a frequency of 0.000014 in the following populations: African in 2 of 24024 chromosomes (freq: 0.00008), Latino in 1 of 34420 chromosomes (freq. 0.00003), and European (Non-Finnish) in 1 of 126726 chromosomes (freq. 0.000008) increasing the likelihood that this may be a low frequency benign variant in certain populations of origin (Genome Aggregation Consortium Feb 27, 2017). The p.His297= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
TP53-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at