rs112215250
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM1BP4_StrongBP6BS1BS2
The NM_003242.6(TGFBR2):c.1657T>A(p.Ser553Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0011 in 1,613,948 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S553S) has been classified as Likely benign.
Frequency
Consequence
NM_003242.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -11 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00112 AC: 171AN: 152090Hom.: 5 Cov.: 32
GnomAD3 exomes AF: 0.00179 AC: 449AN: 251204Hom.: 9 AF XY: 0.00167 AC XY: 227AN XY: 135748
GnomAD4 exome AF: 0.00109 AC: 1600AN: 1461858Hom.: 13 Cov.: 31 AF XY: 0.00110 AC XY: 800AN XY: 727234
GnomAD4 genome AF: 0.00112 AC: 171AN: 152090Hom.: 5 Cov.: 32 AF XY: 0.00106 AC XY: 79AN XY: 74292
ClinVar
Submissions by phenotype
Familial thoracic aortic aneurysm and aortic dissection Benign:5
This alteration is classified as 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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not specified Uncertain:1Benign:2
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This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
proposed classification - variant undergoing re-assessment, contact laboratory -
not provided Benign:3
TGFBR2: BS1 -
Variant summary: The TGFBR2 c.1657T>A (p.Ser553Thr) variant involves the alteration of a conserved nucleotide and 3/5 in silico tools predict a damaging outcome. This variant was found in 170/121354 control chromosomes (2 homozygotes) at a frequency of 0.0014009, which is approximately 1121 times the estimated maximal expected allele frequency of a pathogenic TGFBR2 variant (0.0000013), suggesting this variant is likely a benign polymorphism. Multiple publications have cited the variant in affected individuals. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant with conflicting classifications "uncertain significance" or "likely benign." However, it needs to be noted that many databases/clinical diagnostic laboratories that classified the variant as "uncertain significance" were performed before ExAC data was availalbe. In addition, ClinVar-Partners does state that the variant did not segregate with disease in one family. Therefore, taking all available lines of evidence into consideration, the variant of interest has been classified as Benign. -
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Marfan syndrome Benign:2
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Loeys-Dietz syndrome 2 Benign:2
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
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Congenital aneurysm of ascending aorta Benign:1
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Loeys-Dietz syndrome Benign:1
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Ehlers-Danlos syndrome Benign:1
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TGFBR2-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Connective tissue disorder Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at