rs534852056
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 3P and 4B. PM5PP3BS2
The NM_004304.5(ALK):c.3574C>T(p.Arg1192Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,614,074 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1192Q) has been classified as Uncertain significance.
Frequency
Consequence
NM_004304.5 missense
Scores
Clinical Significance
Conservation
Publications
- neuroblastoma, susceptibility to, 3Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_004304.5. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| ALK | NM_004304.5 | MANE Select | c.3574C>T | p.Arg1192Trp | missense | Exon 23 of 29 | NP_004295.2 | ||
| ALK | NM_001353765.2 | c.370C>T | p.Arg124Trp | missense | Exon 4 of 10 | NP_001340694.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| ALK | ENST00000389048.8 | TSL:1 MANE Select | c.3574C>T | p.Arg1192Trp | missense | Exon 23 of 29 | ENSP00000373700.3 | ||
| ALK | ENST00000638605.1 | TSL:1 | n.451C>T | non_coding_transcript_exon | Exon 5 of 11 | ||||
| ALK | ENST00000618119.4 | TSL:5 | c.2443C>T | p.Arg815Trp | missense | Exon 22 of 28 | ENSP00000482733.1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152188Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251224 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000260 AC: 38AN: 1461768Hom.: 0 Cov.: 31 AF XY: 0.0000261 AC XY: 19AN XY: 727176 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152306Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74480 show subpopulations
ClinVar
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:3
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1192 of the ALK protein (p.Arg1192Trp). This variant is present in population databases (rs534852056, gnomAD 0.004%). 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: 538184). 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. This variant disrupts the p.Arg1192 amino acid residue in ALK. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 18724359, 18923523). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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.
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Hereditary cancer-predisposing syndrome Uncertain:1
The p.R1192W variant (also known as c.3574C>T), located in coding exon 23 of the ALK gene, results from a C to T substitution at nucleotide position 3574. The arginine at codon 1192 is replaced by tryptophan, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at