rs776547376
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2
The NM_004304.5(ALK):c.3855G>T(p.Lys1285Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. K1285M) has been classified as Uncertain significance.
Frequency
Consequence
NM_004304.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ALK | NM_004304.5 | c.3855G>T | p.Lys1285Asn | missense_variant | 26/29 | ENST00000389048.8 | |
ALK | NM_001353765.2 | c.651G>T | p.Lys217Asn | missense_variant | 7/10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ALK | ENST00000389048.8 | c.3855G>T | p.Lys1285Asn | missense_variant | 26/29 | 1 | NM_004304.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome Cov.: 31
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Feb 08, 2023 | This sequence change replaces lysine, which is basic and polar, with asparagine, which is neutral and polar, at codon 1285 of the ALK protein (p.Lys1285Asn). This variant is not present in population databases (gnomAD no frequency). 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: 1723060). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest 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
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | May 03, 2022 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Feb 07, 2023 | The p.K1285N variant (also known as c.3855G>T), located in coding exon 26 of the ALK gene, results from a G to T substitution at nucleotide position 3855. The lysine at codon 1285 is replaced by asparagine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated 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
Publications
No publications associated with this variant yet.