2-178751146-A-T
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_133379.5(TTN):c.11254T>A(p.Ser3752Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,612,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_133379.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TTN | NM_133379.5 | c.11254T>A | p.Ser3752Thr | missense_variant | 46/46 | ENST00000360870.10 | NP_596870.2 | |
TTN | NM_001267550.2 | c.11311+1978T>A | intron_variant | ENST00000589042.5 | NP_001254479.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TTN | ENST00000360870.10 | c.11254T>A | p.Ser3752Thr | missense_variant | 46/46 | 5 | NM_133379.5 | ENSP00000354117.4 | ||
TTN | ENST00000589042.5 | c.11311+1978T>A | intron_variant | 5 | NM_001267550.2 | ENSP00000467141.1 |
Frequencies
GnomAD3 genomes AF: 0.000961 AC: 146AN: 151960Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000265 AC: 66AN: 249070Hom.: 0 AF XY: 0.000186 AC XY: 25AN XY: 134694
GnomAD4 exome AF: 0.0000863 AC: 126AN: 1460638Hom.: 0 Cov.: 73 AF XY: 0.0000729 AC XY: 53AN XY: 726564
GnomAD4 genome AF: 0.000960 AC: 146AN: 152078Hom.: 0 Cov.: 32 AF XY: 0.000968 AC XY: 72AN XY: 74348
ClinVar
Submissions by phenotype
not specified Uncertain:1Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Mar 19, 2012 | Ser3752Thr in exon 45A of TTN: This variant is not expected to have clinical sig nificance because it has been identified in 0.4% (15/3726) of African American c hromosomes from a broad population by the NHLBI Exome Sequencing Project (http:/ /evs.gs.washington.edu/EVS; dbSNP rs144209883). Ser3752Thr in exon 45A of TTN ( rs144209883; allele frequency = 0.4%, 15/3726) ** - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Aug 16, 2016 | Missense variants in the TTN gene are considered 'unclassified' if they are not previously reported in the literature and do not have >1% frequency in the population to be considered a polymorphism. Research indicates that truncating mutations in the TTN gene are expected to account for approximately 25% of familial and 18% of sporadic idiopathic DCM; however, truncating variants in the TTN gene have been reported in approximately 3% of reported control alleles. There has been little investigation into non-truncating variants. (Herman D et al. Truncations of titin causing dilated cardiomyopathy. N Eng J Med 366:619-628, 2012) The variant is found in CARDIOMYOPATHY panel(s). - |
not provided Benign:2
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Apr 01, 2024 | TTN: BP4 - |
Likely benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Sep 06, 2023 | - - |
TTN-related disorder Benign:1
Likely benign, no assertion criteria provided | clinical testing | PreventionGenetics, part of Exact Sciences | Jan 11, 2021 | 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