rs142618425

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005546.4(ITK):​c.1685G>A​(p.Arg562Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,613,984 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. R562R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

ITK
NM_005546.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.72

Publications

2 publications found
Variant links:
Genes affected
ITK (HGNC:6171): (IL2 inducible T cell kinase) This gene encodes an intracellular tyrosine kinase expressed in T-cells. The protein contains both SH2 and SH3 domains which are often found in intracellular kinases. It is thought to play a role in T-cell proliferation and differentiation. [provided by RefSeq, Jul 2008]
ITK Gene-Disease associations (from GenCC):
  • lymphoproliferative syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • lymphoproliferative syndrome 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12777019).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITKNM_005546.4 linkc.1685G>A p.Arg562Gln missense_variant Exon 16 of 17 ENST00000422843.8 NP_005537.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITKENST00000422843.8 linkc.1685G>A p.Arg562Gln missense_variant Exon 16 of 17 1 NM_005546.4 ENSP00000398655.4

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000206
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000108
AC:
27
AN:
251158
AF XY:
0.0000958
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000136
AC:
199
AN:
1461664
Hom.:
0
Cov.:
32
AF XY:
0.000110
AC XY:
80
AN XY:
727146
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33472
American (AMR)
AF:
0.0000671
AC:
3
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86250
European-Finnish (FIN)
AF:
0.0000936
AC:
5
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.000160
AC:
178
AN:
1111838
Other (OTH)
AF:
0.000182
AC:
11
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
13
25
38
50
63
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:
0.0000985
AC:
15
AN:
152320
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41566
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.0000943
AC:
1
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000206
AC:
14
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000156
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Lymphoproliferative syndrome 1 Uncertain:1
Aug 22, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 562 of the ITK protein (p.Arg562Gln). This variant is present in population databases (rs142618425, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with ITK-related conditions. ClinVar contains an entry for this variant (Variation ID: 578820). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ITK protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.47
T
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.064
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.041
D
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-0.64
T
MutationAssessor
Benign
0.56
N
PhyloP100
2.7
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.22
N
REVEL
Benign
0.16
Sift
Benign
0.23
T
Sift4G
Benign
0.25
T
Polyphen
0.23
B
Vest4
0.38
MVP
0.88
MPC
0.46
ClinPred
0.056
T
GERP RS
4.8
Varity_R
0.35
gMVP
0.80
Mutation Taster
=78/22
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: rs142618425; hg19: chr5-156675911; COSMIC: COSV70064887; COSMIC: COSV70064887; API