rs56315533
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_004304.5(ALK):c.3541C>T(p.Arg1181Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004304.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152212Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000358 AC: 9AN: 251324Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135816
GnomAD4 exome AF: 0.0000383 AC: 56AN: 1461802Hom.: 0 Cov.: 31 AF XY: 0.0000413 AC XY: 30AN XY: 727186
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74362
ClinVar
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:2
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This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1181 of the ALK protein (p.Arg1181Cys). This variant is present in population databases (rs56315533, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with ALK-related conditions. ClinVar contains an entry for this variant (Variation ID: 538181). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
not provided Uncertain:1
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in a child with a developmental disorder in published literature (PMID: 31785789); This variant is associated with the following publications: (PMID: 26696773, 25714698, 31785789) -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.R1181C variant (also known as c.3541C>T), located in coding exon 23 of the ALK gene, results from a C to T substitution at nucleotide position 3541. The arginine at codon 1181 is replaced by cysteine, an amino acid with highly dissimilar properties. This alteration has been reported in an individual diagnosed with an embryonal rhabdomyosarcoma (Hooper JE et al. Sarcoma, 2015 Nov;2015:826124). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at