rs876657611
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 3P and 6B. PM2PP2BP4_StrongBP6_Moderate
The NM_001267550.2(TTN):c.60756A>G(p.Ile20252Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I20252R) has been classified as Uncertain significance.
Frequency
Consequence
NM_001267550.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TTN | NM_001267550.2 | c.60756A>G | p.Ile20252Met | missense_variant | 304/363 | ENST00000589042.5 | |
TTN-AS1 | NR_038272.1 | n.3189-170T>C | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TTN | ENST00000589042.5 | c.60756A>G | p.Ile20252Met | missense_variant | 304/363 | 5 | NM_001267550.2 | P1 | |
TTN-AS1 | ENST00000659121.1 | n.417-6627T>C | intron_variant, non_coding_transcript_variant |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD4 exome Cov.: 35
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Aug 17, 2015 | p.Ile17684Met in exon 253 of TTN: This variant is not expected to have clinical significance due to a lack of conservation across species, including mammals. Of note, >35 mammals, including 2 primates, have a methionine (Met) at this positi on despite high nearby amino acid conservation. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at