rs752256731
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_004304.5(ALK):c.3095C>T(p.Pro1032Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,612,086 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P1032Q) 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: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ALK | NM_004304.5 | c.3095C>T | p.Pro1032Leu | missense_variant | Exon 19 of 29 | ENST00000389048.8 | NP_004295.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ALK | ENST00000389048.8 | c.3095C>T | p.Pro1032Leu | missense_variant | Exon 19 of 29 | 1 | NM_004304.5 | ENSP00000373700.3 | ||
| ALK | ENST00000618119.4 | c.1964C>T | p.Pro655Leu | missense_variant | Exon 18 of 28 | 5 | ENSP00000482733.1 | |||
| ALK | ENST00000431873.6 | n.260C>T | non_coding_transcript_exon_variant | Exon 3 of 14 | 5 | ENSP00000414027.3 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152104Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000814 AC: 2AN: 245780 AF XY: 0.00000754 show subpopulations
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1459982Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 725964 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152104Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74300 show subpopulations
ClinVar
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1032 of the ALK protein (p.Pro1032Leu). This variant is present in population databases (rs752256731, gnomAD 0.003%). 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: 566080). 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
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
The p.P1032L variant (also known as c.3095C>T), located in coding exon 19 of the ALK gene, results from a C to T substitution at nucleotide position 3095. The proline at codon 1032 is replaced by leucine, an amino acid with similar 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