rs61754865
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2
The NM_004304.5(ALK):c.2577G>C(p.Glu859Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000211 in 1,614,268 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E859K) 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: Benign. The variant received -11 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ALK | ENST00000389048.8 | c.2577G>C | p.Glu859Asp | missense_variant | Exon 15 of 29 | 1 | NM_004304.5 | ENSP00000373700.3 | ||
ALK | ENST00000618119.4 | c.1446G>C | p.Glu482Asp | missense_variant | Exon 14 of 28 | 5 | ENSP00000482733.1 |
Frequencies
GnomAD3 genomes AF: 0.000998 AC: 152AN: 152258Hom.: 2 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.000262 AC: 66AN: 251486 AF XY: 0.000155 show subpopulations
GnomAD4 exome AF: 0.000127 AC: 185AN: 1461892Hom.: 2 Cov.: 30 AF XY: 0.0000976 AC XY: 71AN XY: 727248 show subpopulations
GnomAD4 genome AF: 0.00102 AC: 155AN: 152376Hom.: 2 Cov.: 34 AF XY: 0.00105 AC XY: 78AN XY: 74516 show subpopulations
ClinVar
Submissions by phenotype
not provided Uncertain:1Benign:1
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ALK: BS1, BS2 -
not specified Uncertain:1Other:1
This variant is denoted ALK c.2577G>C at the cDNA level, p.Glu859Asp (E859D) at the protein level, and results in the change of a Glutamic Acid to an Aspartic Acid (GAG>GAC). This variant was identified in 1/43 healthy African individuals undergoing whole genome sequencing (Bodian 2014). Of note, the participants in this study were younger than 50 years old thus the unaffected status of this individual may not be significant. ALK Glu859Asp was observed with an allele frequency of 0.2% (10/4406) in African Americans in the NHLBI Exome Sequencing Project. Since Glutamic Acid and Aspartic Acid share similar properties, this is considered a conservative amino acid substitution. ALK Glu859Asp occurs at a position that is conserved across species and is located in a Glycine rich region (UniProt). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on currently available evidence, it is unclear whether ALK Glu859Asp is a pathogenic or benign variant. We consider it to be a variant of uncertain significance. -
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Hereditary cancer-predisposing syndrome Benign:2
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This alteration is classified as 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. -
Neuroblastoma, susceptibility to, 3 Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at