rs1060500222
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_004304.5(ALK):c.149A>T(p.Gln50Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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. Q50R) 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 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ALK | NM_004304.5 | c.149A>T | p.Gln50Leu | missense_variant | 1/29 | ENST00000389048.8 | |
ALK | XR_001738688.3 | n.1076A>T | non_coding_transcript_exon_variant | 1/18 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ALK | ENST00000389048.8 | c.149A>T | p.Gln50Leu | missense_variant | 1/29 | 1 | NM_004304.5 | P1 | |
ENST00000669284.1 | n.157+34738A>T | intron_variant, non_coding_transcript_variant |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1460424Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 726534
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jul 05, 2022 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 1508232). This variant has not been reported in the literature in individuals affected with ALK-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 50 of the ALK protein (p.Gln50Leu). - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 07, 2024 | The p.Q50L variant (also known as c.149A>T), located in coding exon 1 of the ALK gene, results from an A to T substitution at nucleotide position 149. The glutamine at codon 50 is replaced by leucine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. 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.