rs143586866

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BS1BS2_Supporting

This summary comes from the ClinGen Evidence Repository: The c.362G>A (NM_000215.4) variant in JAK3 is a missense variant predicted to cause the substitution of Arginine by Histidine at amino acid 121 (p.Arg121His).The popmax filtering allele frequency in gnomAD v.4 is 0.0001262 (based on 11/58232 alleles in the Admixed American population), which is higher than the SCID VCEP established threshold of <0.000115 for PM2_Supporting and lower than >0.00447 (BA1 threshold) and 0.001 (BS1 threshold);However, the highest MAF in the Ashkenazi Jewish population is 0.001469 (43/29280 alleles), which is above the SCID VCEP established threshold of >0.00100. As this population is not known to have a higher prevalence of SCID, this is considered to meet BS1. There is a homozygote in gnomAD v.4 in the Ashkenazi Jewish population (43/29280 alleles), BS2_Supporting.To our knowledge, this variant has not been reported in the literature in individuals affected with JAK3-related conditions or in functional studies.In summary, this variant meets the criteria to be classified as Likely Benign for autosomal recessive T-B+ severe combined immunodeficiency due to JAK3 deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen SCID VCEP. Criteria applied: BS1 and BS2_Supporting (VCEP specifications version 1.0). LINK:https://erepo.genome.network/evrepo/ui/classification/CA9302185/MONDO:0010938/121

Frequency

Genomes: 𝑓 0.000099 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

JAK3
NM_000215.4 missense

Scores

1
17

Clinical Significance

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

Conservation

PhyloP100: 1.15

Publications

2 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 -5 ACMG points.

BS1
For more information check the summary or visit ClinGen Evidence Repository.
BS2
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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
NM_000215.4
MANE Select
c.362G>Ap.Arg121His
missense
Exon 4 of 24NP_000206.2
JAK3
NM_001440439.1
c.362G>Ap.Arg121His
missense
Exon 4 of 24NP_001427368.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JAK3
ENST00000458235.7
TSL:5 MANE Select
c.362G>Ap.Arg121His
missense
Exon 4 of 24ENSP00000391676.1P52333-1
JAK3
ENST00000527670.5
TSL:1
c.362G>Ap.Arg121His
missense
Exon 3 of 23ENSP00000432511.1P52333-1
JAK3
ENST00000534444.1
TSL:1
c.362G>Ap.Arg121His
missense
Exon 4 of 23ENSP00000436421.1P52333-2

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152162
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.000211
AC:
48
AN:
227166
AF XY:
0.000251
show subpopulations
Gnomad AFR exome
AF:
0.0000735
Gnomad AMR exome
AF:
0.000278
Gnomad ASJ exome
AF:
0.00158
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000178
Gnomad OTH exome
AF:
0.000350
GnomAD4 exome
AF:
0.000108
AC:
157
AN:
1447616
Hom.:
0
Cov.:
32
AF XY:
0.000124
AC XY:
89
AN XY:
719122
show subpopulations
African (AFR)
AF:
0.0000302
AC:
1
AN:
33132
American (AMR)
AF:
0.000233
AC:
10
AN:
42936
Ashkenazi Jewish (ASJ)
AF:
0.00139
AC:
36
AN:
25810
East Asian (EAS)
AF:
0.0000256
AC:
1
AN:
38996
South Asian (SAS)
AF:
0.0000948
AC:
8
AN:
84346
European-Finnish (FIN)
AF:
0.0000195
AC:
1
AN:
51360
Middle Eastern (MID)
AF:
0.000348
AC:
2
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000715
AC:
79
AN:
1105450
Other (OTH)
AF:
0.000318
AC:
19
AN:
59834
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
10
20
31
41
51
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
152280
Hom.:
1
Cov.:
32
AF XY:
0.0000940
AC XY:
7
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41556
American (AMR)
AF:
0.0000654
AC:
1
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00202
AC:
7
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68022
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
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:
0.000243
Hom.:
0
Bravo
AF:
0.000106
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000173
AC:
21
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
2
T-B+ severe combined immunodeficiency due to JAK3 deficiency (3)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.27
T
Eigen
Benign
-0.66
Eigen_PC
Benign
-0.61
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.023
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L
PhyloP100
1.1
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.028
Sift
Benign
0.083
T
Sift4G
Benign
0.17
T
Polyphen
0.028
B
Vest4
0.13
MVP
0.58
MPC
0.61
ClinPred
0.020
T
GERP RS
2.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.077
gMVP
0.79
Mutation Taster
=73/27
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: rs143586866; hg19: chr19-17954247; COSMIC: COSV71685738; API