rs373710656
Variant summary
Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2
The NM_000546.6(TP53):c.1149C>T(p.Leu383Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000533 in 1,614,060 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
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ACMG classification
Verdict is Benign. Variant got -17 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152198Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000358 AC: 9AN: 251486Hom.: 0 AF XY: 0.0000515 AC XY: 7AN XY: 135920
GnomAD4 exome AF: 0.0000534 AC: 78AN: 1461862Hom.: 0 Cov.: 31 AF XY: 0.0000523 AC XY: 38AN XY: 727232
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152198Hom.: 0 Cov.: 32 AF XY: 0.0000941 AC XY: 7AN XY: 74356
ClinVar
Submissions by phenotype
Li-Fraumeni syndrome 1 Benign:3
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
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not provided Benign:3
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TP53: BP4, BP7 -
Hereditary cancer-predisposing syndrome Benign:3
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 Benign:2
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Carcinoma of colon Uncertain:1
The TP53 p.Leu383= variant was not identified in the literature nor was it identified in the LOVD 3.0 or UMD-LSDB databases. The variant was also identified in dbSNP (ID: rs373710656) as "With Likely benign allele" and ClinVar (classified as likely benign by Invitae, Counsyl, Ambry Genetics and Color). The variant was identified in control databases in 9 of 246266 chromosomes at a frequency of 0.00004 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: European in 8 of 111716 chromosomes (freq: 0.00007) and Latino in 1 of 33582 chromosomes (freq: 0.00003), while it was not observed in the African, Ashkenazi Jewish, East Asian, Finnish, Other, or South Asian populations. The p.Leu383= 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. However, 1 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Squamous cell carcinoma of the head and neck Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at