rs771475772

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4BP6BS1BS2

The NM_004304.5(ALK):​c.3691C>T​(p.Arg1231Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000849 in 1,613,936 control chromosomes in the GnomAD database, including 1 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. R1231Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00022 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

ALK
NM_004304.5 missense

Scores

2
7
9

Clinical Significance

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

Conservation

PhyloP100: 4.48

Publications

5 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 -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.42066962).
BP6
Variant 2-29214036-G-A is Benign according to our data. Variant chr2-29214036-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 470840.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000217 (33/152134) while in subpopulation AMR AF = 0.0017 (26/15290). AF 95% confidence interval is 0.00119. There are 1 homozygotes in GnomAd4. There are 23 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 33 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004304.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALK
NM_004304.5
MANE Select
c.3691C>Tp.Arg1231Trp
missense
Exon 24 of 29NP_004295.2
ALK
NM_001353765.2
c.487C>Tp.Arg163Trp
missense
Exon 5 of 10NP_001340694.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALK
ENST00000389048.8
TSL:1 MANE Select
c.3691C>Tp.Arg1231Trp
missense
Exon 24 of 29ENSP00000373700.3
ALK
ENST00000638605.1
TSL:1
n.568C>T
non_coding_transcript_exon
Exon 6 of 11
ALK
ENST00000618119.4
TSL:5
c.2560C>Tp.Arg854Trp
missense
Exon 23 of 28ENSP00000482733.1

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152134
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00170
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251406
AF XY:
0.0000589
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000231
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000711
AC:
104
AN:
1461802
Hom.:
0
Cov.:
31
AF XY:
0.0000701
AC XY:
51
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.000179
AC:
8
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000818
AC:
91
AN:
1111952
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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:
0.000217
AC:
33
AN:
152134
Hom.:
1
Cov.:
32
AF XY:
0.000309
AC XY:
23
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41424
American (AMR)
AF:
0.00170
AC:
26
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.000280
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Neuroblastoma, susceptibility to, 3 (2)
-
-
1
Hereditary cancer-predisposing syndrome (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.041
T
BayesDel_noAF
Uncertain
0.0
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.099
T
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.81
T
M_CAP
Uncertain
0.086
D
MetaRNN
Benign
0.42
T
MetaSVM
Uncertain
-0.017
T
MutationAssessor
Benign
1.4
L
PhyloP100
4.5
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-7.1
D
REVEL
Uncertain
0.56
Sift
Benign
0.21
T
Sift4G
Benign
0.064
T
Polyphen
0.61
P
Vest4
0.75
MutPred
0.69
Gain of catalytic residue at R1231 (P = 0.0435)
MVP
0.80
MPC
0.63
ClinPred
0.34
T
GERP RS
5.6
Varity_R
0.73
gMVP
0.84
Mutation Taster
=77/23
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs771475772; hg19: chr2-29436902; API