rs61754865

Positions:

Variant summary

Our verdict is Benign. Variant got -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

Genomes: 𝑓 0.0010 ( 2 hom., cov: 34)

Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

ALK
NM_004304.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3O:1

Conservation

PhyloP100: 1.52

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08712977).

BP6

Variant 2-29232359-C-G is Benign according to our data. Variant chr2-29232359-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 133464.We mark this variant Likely_benign, oryginal submissions are: {Benign=2, Likely_benign=1, Uncertain_significance=2, not_provided=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00102 (155/152376) while in subpopulation AFR AF= 0.00361 (150/41584). AF 95% confidence interval is 0.00314. There are 2 homozygotes in gnomad4. There are 78 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High AC in GnomAd4 at 155 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ALK	NM_004304.5 linkuse as main transcript	c.2577G>C	p.Glu859Asp	missense_variant	15/29	ENST00000389048.8
ALK	XR_001738688.3 linkuse as main transcript	n.3504G>C		non_coding_transcript_exon_variant	15/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ALK	ENST00000389048.8 linkuse as main transcript	c.2577G>C	p.Glu859Asp	missense_variant	15/29	1	NM_004304.5	P1
ALK	ENST00000618119.4 linkuse as main transcript	c.1446G>C	p.Glu482Asp	missense_variant	14/28	5

Frequencies

GnomAD3 genomes

AF:

0.000998

AC:

152

AN:

152258

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00355

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000262

AC:

AN:

251486

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.00344

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000127

AC:

185

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000976

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00412

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000480

GnomAD4 genome

AF:

0.00102

AC:

155

AN:

152376

Hom.:

Cov.:

AF XY:

0.00105

AC XY:

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.00361

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.0000910

Hom.:

Bravo

AF:

0.00120

ESP6500AA

AF:

0.00227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000272

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	May 18, 2023	- -
Benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Sep 01, 2022	ALK: BS1, BS2 -

not specified

Uncertain:1Other:1

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	May 02, 2016	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. -
not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -

Neuroblastoma, susceptibility to, 3

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 30, 2024

- -

Hereditary cancer-predisposing syndrome

Benign:1

Likely benign, criteria provided, single submitter

curation

Sema4, Sema4

May 13, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.18

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.096

T;.

Eigen

Benign

0.19

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.84

T;T

M_CAP

Uncertain

0.26

MetaRNN

Benign

0.087

T;T

MetaSVM

Uncertain

-0.17

MutationAssessor

Uncertain

2.4

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.63

PROVEAN

Benign

-1.6

N;.

REVEL

Uncertain

0.43

Sift

Benign

0.030

D;.

Sift4G

Uncertain

0.046

D;T

Polyphen

1.0

D;.

Vest4

0.81

MutPred

0.16

Loss of glycosylation at T855 (P = 0.1456);.;

MVP

0.85

MPC

0.56

ClinPred

0.041

GERP RS

3.1

Varity_R

0.12

gMVP

0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over