rs767424476

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000215.4(JAK3):​c.2756C>T​(p.Ala919Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,611,676 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A919P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

JAK3
NM_000215.4 missense

Scores

2
16

Clinical Significance

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

Conservation

PhyloP100: 1.09

Publications

3 publications found
Variant links:
Genes affected
JAK3 (HGNC:6193): (Janus kinase 3) The protein encoded by this gene is a member of the Janus kinase (JAK) family of tyrosine kinases involved in cytokine receptor-mediated intracellular signal transduction. It is predominantly expressed in immune cells and transduces a signal in response to its activation via tyrosine phosphorylation by interleukin receptors. Mutations in this gene are associated with autosomal SCID (severe combined immunodeficiency disease). [provided by RefSeq, Jul 2008]
JAK3 Gene-Disease associations (from GenCC):
  • T-B+ severe combined immunodeficiency due to JAK3 deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.10622984).
BP6
Variant 19-17831723-G-A is Benign according to our data. Variant chr19-17831723-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 565744.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000215.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
NM_000215.4
MANE Select
c.2756C>Tp.Ala919Val
missense
Exon 20 of 24NP_000206.2
JAK3
NM_001440439.1
c.2756C>Tp.Ala919Val
missense
Exon 20 of 24NP_001427368.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
ENST00000458235.7
TSL:5 MANE Select
c.2756C>Tp.Ala919Val
missense
Exon 20 of 24ENSP00000391676.1P52333-1
JAK3
ENST00000527670.5
TSL:1
c.2756C>Tp.Ala919Val
missense
Exon 19 of 23ENSP00000432511.1P52333-1
JAK3
ENST00000534444.1
TSL:1
c.2756C>Tp.Ala919Val
missense
Exon 20 of 23ENSP00000436421.1P52333-2

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000249
AC:
6
AN:
240618
AF XY:
0.0000303
show subpopulations
Gnomad AFR exome
AF:
0.000344
Gnomad AMR exome
AF:
0.00
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:
0.00
GnomAD4 exome
AF:
0.00000959
AC:
14
AN:
1459502
Hom.:
0
Cov.:
33
AF XY:
0.0000110
AC XY:
8
AN XY:
726056
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33460
American (AMR)
AF:
0.00
AC:
0
AN:
44536
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26062
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39672
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86122
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52096
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111502
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60288
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.436
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

Exome 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
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74336
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000869
ExAC
AF:
0.00000827
AC:
1

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
JAK3-related disorder (1)
-
-
1
T-B+ severe combined immunodeficiency due to JAK3 deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
15
DANN
Benign
0.96
DEOGEN2
Benign
0.38
T
Eigen
Benign
-0.81
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.51
T
M_CAP
Uncertain
0.16
D
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
0.53
N
PhyloP100
1.1
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.84
N
REVEL
Benign
0.19
Sift
Benign
0.30
T
Sift4G
Benign
0.29
T
Polyphen
0.24
B
Vest4
0.27
MVP
0.85
MPC
0.48
ClinPred
0.024
T
GERP RS
1.6
Varity_R
0.12
gMVP
0.78
Mutation Taster
=72/28
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: rs767424476; hg19: chr19-17942532; API