NM_004304.5:c.2676C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_004304.5(ALK):c.2676C>T(p.Ala892Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00117 in 1,601,550 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A892A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0011 ( 9 hom. )

Consequence

ALK
NM_004304.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.0200

Publications

3 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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant 2-29229023-G-A is Benign according to our data. Variant chr2-29229023-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 239811.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.02 with no splicing effect.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00159 (227/142578) while in subpopulation EAS AF = 0.0044 (21/4774). AF 95% confidence interval is 0.00295. There are 0 homozygotes in GnomAd4. There are 137 alleles in the male GnomAd4 subpopulation. Median coverage is 30. This position passed quality control check.

BS2

High AC in GnomAd4 at 227 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALK	NM_004304.5 link	c.2676C>T	p.Ala892Ala	synonymous_variant	Exon 16 of 29	ENST00000389048.8	NP_004295.2	Q9UM73B6D4Y2
ALK	XR_001738688.3 link	n.3603C>T		non_coding_transcript_exon_variant	Exon 16 of 18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALK	ENST00000389048.8 link	c.2676C>T	p.Ala892Ala	synonymous_variant	Exon 16 of 29	1	NM_004304.5	ENSP00000373700.3		Q9UM73
ALK	ENST00000618119.4 link	c.1545C>T	p.Ala515Ala	synonymous_variant	Exon 15 of 28	5		ENSP00000482733.1		A0A087WZL3

Frequencies

GnomAD3 genomes

AF:

0.00159

AC:

227

AN:

142506

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000316

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000310

Gnomad ASJ

AF:

0.00725

Gnomad EAS

AF:

0.00439

Gnomad SAS

AF:

0.000221

Gnomad FIN

AF:

0.0139

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000553

Gnomad OTH

AF:

0.00254

GnomAD2 exomes

AF:

0.00220

AC:

554

AN:

251330

AF XY:

0.00198

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00923

Gnomad EAS exome

AF:

0.00256

Gnomad FIN exome

AF:

0.0134

Gnomad NFE exome

AF:

0.000801

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00112

AC:

1639

AN:

1458972

Hom.:

Cov.:

AF XY:

0.00108

AC XY:

784

AN XY:

725720

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33410

American (AMR)

AF:

0.000269

AC:

AN:

44618

Ashkenazi Jewish (ASJ)

AF:

0.00794

AC:

207

AN:

26056

East Asian (EAS)

AF:

0.00578

AC:

229

AN:

39586

South Asian (SAS)

AF:

0.000383

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.0123

AC:

652

AN:

53178

Middle Eastern (MID)

AF:

0.000522

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.000361

AC:

401

AN:

1109962

Other (OTH)

AF:

0.00156

AC:

AN:

60184

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

196

293

391

489

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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

AF:

0.00159

AC:

227

AN:

142578

Hom.:

Cov.:

AF XY:

0.00200

AC XY:

137

AN XY:

68502

show subpopulations

African (AFR)

AF:

0.000315

AC:

AN:

38104

American (AMR)

AF:

0.000310

AC:

AN:

12914

Ashkenazi Jewish (ASJ)

AF:

0.00725

AC:

AN:

3446

East Asian (EAS)

AF:

0.00440

AC:

AN:

4774

South Asian (SAS)

AF:

0.000222

AC:

AN:

4510

European-Finnish (FIN)

AF:

0.0139

AC:

122

AN:

8760

Middle Eastern (MID)

AF:

0.00

AC:

AN:

256

European-Non Finnish (NFE)

AF:

0.000553

AC:

AN:

66920

Other (OTH)

AF:

0.00252

AC:

AN:

1986

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00114

Hom.:

Bravo

AF:

0.000593

Asia WGS

AF:

0.00404

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ALK: BP4, BP7 -

Feb 24, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Neuroblastoma, susceptibility to, 3

Benign:2

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

ALK-related disorder

Benign:1

Jun 25, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Hereditary cancer-predisposing syndrome

Benign:1

Jan 06, 2017

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

8.9

(source)

DANN

Benign

0.70

PhyloP100

0.020

Mutation Taster

=99/1

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over