rs1881422

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_004304.5(ALK):​c.4596C>T​(p.Asn1532Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0033 in 1,614,098 control chromosomes in the GnomAD database, including 152 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 84 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 68 hom. )

Consequence

ALK
NM_004304.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.247
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]
CLIP4 (HGNC:26108): (CAP-Gly domain containing linker protein family member 4) Predicted to enable microtubule plus-end binding activity. Predicted to be involved in cytoplasmic microtubule organization. Located in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 2-29193491-G-A is Benign according to our data. Variant chr2-29193491-G-A is described in ClinVar as [Benign]. Clinvar id is 335687.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.247 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0593 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALKNM_004304.5 linkc.4596C>T p.Asn1532Asn synonymous_variant Exon 29 of 29 ENST00000389048.8 NP_004295.2 Q9UM73B6D4Y2
ALKNM_001353765.2 linkc.1392C>T p.Asn464Asn synonymous_variant Exon 10 of 10 NP_001340694.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALKENST00000389048.8 linkc.4596C>T p.Asn1532Asn synonymous_variant Exon 29 of 29 1 NM_004304.5 ENSP00000373700.3 Q9UM73

Frequencies

GnomAD3 genomes
AF:
0.0174
AC:
2641
AN:
152094
Hom.:
77
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0606
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00576
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.0124
GnomAD3 exomes
AF:
0.00467
AC:
1172
AN:
251148
Hom.:
30
AF XY:
0.00351
AC XY:
477
AN XY:
135728
show subpopulations
Gnomad AFR exome
AF:
0.0633
Gnomad AMR exome
AF:
0.00312
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.00228
GnomAD4 exome
AF:
0.00181
AC:
2646
AN:
1461886
Hom.:
68
Cov.:
31
AF XY:
0.00162
AC XY:
1175
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0622
Gnomad4 AMR exome
AF:
0.00358
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000791
Gnomad4 OTH exome
AF:
0.00455
GnomAD4 genome
AF:
0.0176
AC:
2677
AN:
152212
Hom.:
84
Cov.:
32
AF XY:
0.0175
AC XY:
1305
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.0613
Gnomad4 AMR
AF:
0.00575
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.0123
Alfa
AF:
0.00789
Hom.:
14
Bravo
AF:
0.0194
Asia WGS
AF:
0.00751
AC:
26
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Neuroblastoma, susceptibility to, 3 Benign:4
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 22, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
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. -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Aug 24, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The ALK c.4596C>T (p.Asn1532Asn) variant involves the alteration of a non-conserved nucleotide, resulting in a synonymous change. Mutation Taster predicts a benign outcome for this variant. 4/5 splice prediction tools predict no significant impact on normal splicing. In addition, ESE finder predicts that this variant may not affect ESE sites. This variant was found in 684/121410 control chromosomes (17 homozygotes), predominantly observed in the African subpopulation at a frequency of 0.0620796 (646/10406). This frequency is about 148991 times the estimated maximal expected allele frequency of a pathogenic ALK variant (0.0000004), suggesting this is likely a common benign polymorphism found primarily in the populations of African origin. The variant of interest has not, to our knowledge, been reported in affected individuals via publications. Taken together, this variant is classified as Benign. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:1
Feb 21, 2017
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Hereditary cancer-predisposing syndrome Benign:1
Sep 28, 2018
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
-0.77
CADD
Benign
0.49
DANN
Benign
0.80

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.

Other links and lift over

dbSNP: rs1881422; hg19: chr2-29416357; COSMIC: COSV104692661; COSMIC: COSV104692661; API