rs56071005
Variant summary
Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2
The NM_004304.5(ALK):c.3594C>T(p.Leu1198=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00244 in 1,614,006 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0016 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0025 ( 10 hom. )
Consequence
ALK
NM_004304.5 synonymous
NM_004304.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.99
Genes affected
ALK (HGNC:427): (ALK receptor tyrosine kinase) This gene encodes a receptor tyrosine kinase, which belongs to the insulin receptor superfamily. This protein comprises an extracellular domain, an hydrophobic stretch corresponding to a single pass transmembrane region, and an intracellular kinase domain. It plays an important role in the development of the brain and exerts its effects on specific neurons in the nervous system. This gene has been found to be rearranged, mutated, or amplified in a series of tumours including anaplastic large cell lymphomas, neuroblastoma, and non-small cell lung cancer. The chromosomal rearrangements are the most common genetic alterations in this gene, which result in creation of multiple fusion genes in tumourigenesis, including ALK (chromosome 2)/EML4 (chromosome 2), ALK/RANBP2 (chromosome 2), ALK/ATIC (chromosome 2), ALK/TFG (chromosome 3), ALK/NPM1 (chromosome 5), ALK/SQSTM1 (chromosome 5), ALK/KIF5B (chromosome 10), ALK/CLTC (chromosome 17), ALK/TPM4 (chromosome 19), and ALK/MSN (chromosome X).[provided by RefSeq, Jan 2011]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -19 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
?
Variant 2-29220757-G-A is Benign according to our data. Variant chr2-29220757-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 239824.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-29220757-G-A is described in Lovd as [Likely_benign]. Variant chr2-29220757-G-A is described in Lovd as [Benign].
BP7
?
Synonymous conserved (PhyloP=1.99 with no splicing effect.
BS1
?
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00159 (242/152310) while in subpopulation NFE AF= 0.00281 (191/68032). AF 95% confidence interval is 0.00248. There are 2 homozygotes in gnomad4. There are 110 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
?
High AC in GnomAd4 at 242 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ALK | NM_004304.5 | c.3594C>T | p.Leu1198= | synonymous_variant | 23/29 | ENST00000389048.8 | |
ALK | NM_001353765.2 | c.390C>T | p.Leu130= | synonymous_variant | 4/10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ALK | ENST00000389048.8 | c.3594C>T | p.Leu1198= | synonymous_variant | 23/29 | 1 | NM_004304.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00159 AC: 242AN: 152192Hom.: 2 Cov.: 32
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GnomAD3 exomes AF: 0.00137 AC: 344AN: 251078Hom.: 2 AF XY: 0.00141 AC XY: 191AN XY: 135702
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GnomAD4 exome AF: 0.00253 AC: 3696AN: 1461696Hom.: 10 Cov.: 31 AF XY: 0.00246 AC XY: 1787AN XY: 727150
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:14
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Benign:5
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 09, 2023 | - - |
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Benign, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, Amsterdam University Medical Center | Dec 23, 2015 | - - |
Likely benign, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
not specified Benign:3
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Dec 04, 2018 | Variant summary: ALK c.3594C>T alters a non-conserved nucleotide resulting in a synonymous change. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0014 in 276838 control chromosomes in the gnomAD database, including 3 homozygotes. The observed variant frequency is approximately 3355.03 fold of the estimated maximal expected allele frequency for a pathogenic variant in ALK causing Neuroblastoma, Susceptibility Type 3 phenotype (4.2e-07), strongly suggesting that the variant is benign. To our knowledge, no occurrence of c.3594C>T in individuals affected with Neuroblastoma, Susceptibility Type 3 and no experimental evidence demonstrating its impact on protein function have been reported. Six clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. - |
Benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Likely benign, no assertion criteria provided | clinical testing | Genetic Services Laboratory, University of Chicago | May 11, 2022 | - - |
not provided Benign:3
Likely benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Aug 01, 2023 | ALK: BP4, BP7, BS2 - |
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Dec 01, 2020 | - - |
Hereditary cancer-predisposing syndrome Benign:2
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 23, 2016 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Benign, criteria provided, single submitter | curation | Sema4, Sema4 | Dec 28, 2020 | - - |
ALK-related disorder Benign:1
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Feb 11, 2020 | This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at