rs3179893

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS1

This summary comes from the ClinGen Evidence Repository: The c.2636A>G (NM_000215.4) variant in JAK3 is a missense variant predicted to cause substitution of Histidine by Arginine at amino acid 879 (p.His879Arg).The filtering allele frequency (the lower threshold of the 95% CI of 63/24964) of the c.2636A>G variant in JAK3 is 0.001911 for African/African American chromosomes by gnomAD v2.1.1, which is higher than the ClinGen SCID VCEP threshold (>0.00100) for BS1, and therefore meets this criterion (BS1).To our knowledge, this variant has not been reported in the literature in individuals affected with JAK3-related conditions. In summary, this variant meets the criteria to be classified as Likely Benign for autosomal recessive SCID based on the ACMG/AMP criteria applied, as specified by the ClinGen SCID VCEP. Criteria applied: BS1. (VCEP specifications version 1). LINK:https://erepo.genome.network/evrepo/ui/classification/CA9301563/MONDO:0010938/121

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

JAK3
NM_000215.4 missense

Scores

1
9
8

Clinical Significance

Likely benign reviewed by expert panel U:1B:2

Conservation

PhyloP100: 5.84

Publications

7 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, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, ClinGen, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS1
For more information check the summary or visit ClinGen Evidence Repository.

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
NM_000215.4
MANE Select
c.2636A>Gp.His879Arg
missense
Exon 19 of 24NP_000206.2
JAK3
NM_001440439.1
c.2636A>Gp.His879Arg
missense
Exon 19 of 24NP_001427368.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
ENST00000458235.7
TSL:5 MANE Select
c.2636A>Gp.His879Arg
missense
Exon 19 of 24ENSP00000391676.1
JAK3
ENST00000527670.5
TSL:1
c.2636A>Gp.His879Arg
missense
Exon 18 of 23ENSP00000432511.1
JAK3
ENST00000534444.1
TSL:1
c.2636A>Gp.His879Arg
missense
Exon 19 of 23ENSP00000436421.1

Frequencies

GnomAD3 genomes
AF:
0.000769
AC:
117
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00263
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.000478
GnomAD2 exomes
AF:
0.000191
AC:
48
AN:
251482
AF XY:
0.000162
show subpopulations
Gnomad AFR exome
AF:
0.00252
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:
0.00
GnomAD4 exome
AF:
0.0000787
AC:
115
AN:
1461890
Hom.:
0
Cov.:
33
AF XY:
0.0000701
AC XY:
51
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00302
AC:
101
AN:
33480
American (AMR)
AF:
0.000157
AC:
7
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:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112008
Other (OTH)
AF:
0.000116
AC:
7
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
8
16
24
32
40
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:
0.000768
AC:
117
AN:
152350
Hom.:
0
Cov.:
32
AF XY:
0.000805
AC XY:
60
AN XY:
74494
show subpopulations
African (AFR)
AF:
0.00262
AC:
109
AN:
41590
American (AMR)
AF:
0.000458
AC:
7
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
6
12
18
24
30
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:
0.000331
Hom.:
0
Bravo
AF:
0.000997
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000206
AC:
25
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Likely benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
T-B+ severe combined immunodeficiency due to JAK3 deficiency (2)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Uncertain
-0.040
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.73
D
Eigen
Benign
-0.055
Eigen_PC
Benign
0.079
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.81
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.019
T
MetaSVM
Uncertain
0.020
D
MutationAssessor
Benign
0.0
N
PhyloP100
5.8
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.9
D
REVEL
Uncertain
0.44
Sift
Benign
0.032
D
Sift4G
Uncertain
0.026
D
Polyphen
0.044
B
Vest4
0.23
MVP
0.89
MPC
0.61
ClinPred
0.15
T
GERP RS
4.5
Varity_R
0.65
gMVP
0.77
Mutation Taster
=13/87
disease causing

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: rs3179893; hg19: chr19-17943372; API