rs1026192345

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004304.5(ALK):c.91T>G(p.Ser31Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000903 in 1,439,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. S31T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000090 ( 0 hom. )

Consequence

ALK
NM_004304.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.781

Publications

1 publications found

Variant links:

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]

ALK Gene-Disease associations (from GenCC):

neuroblastoma, susceptibility to, 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics

ALK links:

ENSG00000233862 (HGNC:):

ENSG00000233862 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07762453).

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALK	NM_004304.5 link	c.91T>G	p.Ser31Ala	missense_variant	Exon 1 of 29	ENST00000389048.8	NP_004295.2
ALK	XR_001738688.3 link	n.1018T>G		non_coding_transcript_exon_variant	Exon 1 of 18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
ALK	ENST00000389048.8 link	c.91T>G	p.Ser31Ala	missense_variant	Exon 1 of 29	1	NM_004304.5	ENSP00000373700.3
ENSG00000233862	ENST00000669284.1 link	n.157+34680T>G		intron_variant	Intron 1 of 1
ENSG00000233862	ENST00000769926.1 link	n.534+5650T>G		intron_variant	Intron 4 of 4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000903

AC:

AN:

1439882

Hom.:

Cov.:

AF XY:

0.00000979

AC XY:

AN XY:

714744

show subpopulations

African (AFR)

AF:

0.0000302

AC:

AN:

33160

American (AMR)

AF:

0.00

AC:

AN:

43058

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25786

East Asian (EAS)

AF:

0.00

AC:

AN:

38950

South Asian (SAS)

AF:

0.00

AC:

AN:

84290

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44652

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5452

European-Non Finnish (NFE)

AF:

0.0000109

AC:

AN:

1104954

Other (OTH)

AF:

0.00

AC:

AN:

59580

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Neuroblastoma, susceptibility to, 3

Uncertain:2

Sep 23, 2023

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jan 12, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 31 of the ALK protein (p.Ser31Ala). 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: 404340). 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 tolerated. 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

Jun 15, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

Hereditary cancer-predisposing syndrome

Uncertain:1

Nov 16, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.S31A variant (also known as c.91T>G), located in coding exon 1 of the ALK gene, results from a T to G substitution at nucleotide position 91. The serine at codon 31 is replaced by alanine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.11

Eigen

Benign

-0.68

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.21

LIST_S2

Benign

0.29

M_CAP

Benign

0.058

MetaRNN

Benign

0.078

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.69

PhyloP100

0.78

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.31

REVEL

Benign

0.039

Sift

Benign

0.038

Sift4G

Benign

0.076

Vest4

0.068

ClinPred

0.11

GERP RS

2.8

Varity_R

0.049

gMVP

0.13

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over