2-70212802-C-T
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_022173.4(TIA1):c.1078G>A(p.Val360Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000172 in 1,614,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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_022173.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152198Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000557 AC: 14AN: 251442Hom.: 0 AF XY: 0.0000809 AC XY: 11AN XY: 135894
GnomAD4 exome AF: 0.000177 AC: 259AN: 1461808Hom.: 0 Cov.: 30 AF XY: 0.000158 AC XY: 115AN XY: 727222
GnomAD4 genome AF: 0.000118 AC: 18AN: 152198Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6AN XY: 74348
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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TIA1: BP4 -
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Welander distal myopathy Uncertain:1
This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 360 of the TIA1 protein (p.Val360Met). This variant is present in population databases (rs201905164, gnomAD 0.01%). This missense change has been observed in individual(s) with amyotrophic lateral sclerosis (PMID: 28817800, 29216908). ClinVar contains an entry for this variant (Variation ID: 651295). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at