Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV000536393 | SCV000648710 | uncertain significance | Neuroblastoma, susceptibility to, 3 | 2024-01-25 | criteria provided, single submitter | clinical testing | This sequence change creates a premature translational stop signal (p.Leu1257Aspfs*27) in the ALK gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in ALK cause disease. 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: 470843). 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. |
Ambry Genetics | RCV002367901 | SCV002625960 | uncertain significance | Hereditary cancer-predisposing syndrome | 2020-09-30 | criteria provided, single submitter | clinical testing | The c.3769_3770delTT variant, located in coding exon 25 of the ALK gene, results from a deletion of two nucleotides at nucleotide positions 3769 to 3770, causing a translational frameshift with a predicted alternate stop codon (p.L1257Dfs*27). This alteration is expected to result in premature protein truncation or nonsense-mediated mRNA decay. However, loss of function of ALK has not been clearly established as a mechanism of disease. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |