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

Genomes: 𝑓 0.0010 ( 2 hom., cov: 34)
Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

ALK
NM_004304.5 missense

Scores

1
8
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4O:1

Conservation

PhyloP100: 1.52

Publications

10 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -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 submission is: [Conflicting_classifications_of_pathogenicity].
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 the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High AC in GnomAd4 at 155 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALKNM_004304.5 linkc.2577G>C p.Glu859Asp missense_variant Exon 15 of 29 ENST00000389048.8 NP_004295.2 Q9UM73B6D4Y2
ALKXR_001738688.3 linkn.3504G>C non_coding_transcript_exon_variant Exon 15 of 18

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALKENST00000389048.8 linkc.2577G>C p.Glu859Asp missense_variant Exon 15 of 29 1 NM_004304.5 ENSP00000373700.3 Q9UM73
ALKENST00000618119.4 linkc.1446G>C p.Glu482Asp missense_variant Exon 14 of 28 5 ENSP00000482733.1 A0A087WZL3

Frequencies

GnomAD3 genomes
AF:
0.000998
AC:
152
AN:
152258
Hom.:
2
Cov.:
34
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
GnomAD2 exomes
AF:
0.000262
AC:
66
AN:
251486
AF XY:
0.000155
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 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.:
2
Cov.:
30
AF XY:
0.0000976
AC XY:
71
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.00412
AC:
138
AN:
33480
American (AMR)
AF:
0.000224
AC:
10
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.000693
AC:
4
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112012
Other (OTH)
AF:
0.000480
AC:
29
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
13
26
38
51
64
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00102
AC:
155
AN:
152376
Hom.:
2
Cov.:
34
AF XY:
0.00105
AC XY:
78
AN XY:
74516
show subpopulations
African (AFR)
AF:
0.00361
AC:
150
AN:
41584
American (AMR)
AF:
0.000196
AC:
3
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68038
Other (OTH)
AF:
0.000946
AC:
2
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
6
12
19
25
31
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000910
Hom.:
0
Bravo
AF:
0.00120
ESP6500AA
AF:
0.00227
AC:
10
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000272
AC:
33
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:4Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
May 18, 2023
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ALK: BS1, BS2 -

not specified Uncertain:1Other:1
May 02, 2016
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Hereditary cancer-predisposing syndrome Benign:2
May 13, 2021
Sema4, Sema4
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Jun 25, 2024
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. -

Neuroblastoma, susceptibility to, 3 Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.096
T;.
Eigen
Benign
0.19
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.84
T;T
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.087
T;T
MetaSVM
Uncertain
-0.17
T
MutationAssessor
Uncertain
2.4
M;.
PhyloP100
1.5
PrimateAI
Uncertain
0.63
T
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
T
GERP RS
3.1
Varity_R
0.12
gMVP
0.79
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs61754865; hg19: chr2-29455225; COSMIC: COSV66577816; API