rs72647894
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2
The NM_001267550.2(TTN):āc.9359G>Cā(p.Arg3120Pro) 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 1,461,822 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R3120Q) has been classified as Benign.
Frequency
Consequence
NM_001267550.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TTN | NM_001267550.2 | c.9359G>C | p.Arg3120Pro | missense_variant | 40/363 | ENST00000589042.5 | NP_001254479.2 | |
TTN | NM_133379.5 | c.9359G>C | p.Arg3120Pro | missense_variant | 40/46 | ENST00000360870.10 | NP_596870.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TTN | ENST00000589042.5 | c.9359G>C | p.Arg3120Pro | missense_variant | 40/363 | 5 | NM_001267550.2 | ENSP00000467141.1 | ||
TTN | ENST00000360870.10 | c.9359G>C | p.Arg3120Pro | missense_variant | 40/46 | 5 | NM_133379.5 | ENSP00000354117.4 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461822Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1AN XY: 727214
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Aug 04, 2014 | 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). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at