chr19-17844310-C-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000215.4(JAK3):c.108G>C(p.Gly36Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000486 in 1,608,242 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0020 ( 3 hom., cov: 31)

Exomes 𝑓: 0.00033 ( 2 hom. )

Consequence

JAK3
NM_000215.4 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: -1.67

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

JAK3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BP6

Variant 19-17844310-C-G is Benign according to our data. Variant chr19-17844310-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 137599.

BP7

Synonymous conserved (PhyloP=-1.67 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.002 (305/152268) while in subpopulation AFR AF = 0.00674 (280/41540). AF 95% confidence interval is 0.00609. There are 3 homozygotes in GnomAd4. There are 141 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
JAK3	NM_000215.4 link	c.108G>C	p.Gly36Gly	synonymous_variant	Exon 2 of 24	ENST00000458235.7	NP_000206.2
JAK3	NM_001440439.1 link	c.108G>C	p.Gly36Gly	synonymous_variant	Exon 2 of 24		NP_001427368.1
JAK3	XM_011527991.3 link	c.108G>C	p.Gly36Gly	synonymous_variant	Exon 2 of 14		XP_011526293.2
JAK3	XR_007066796.1 link	n.158G>C		non_coding_transcript_exon_variant	Exon 2 of 20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JAK3	ENST00000458235.7 link	c.108G>C	p.Gly36Gly	synonymous_variant	Exon 2 of 24	5	NM_000215.4	ENSP00000391676.1

Frequencies

GnomAD3 genomes

AF:

0.00200

AC:

305

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00676

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0380

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000560

AC:

132

AN:

235920

AF XY:

0.000443

show subpopulations

Gnomad AFR exome

AF:

0.00666

Gnomad AMR exome

AF:

0.0000897

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.000173

GnomAD4 exome

AF:

0.000328

AC:

477

AN:

1455974

Hom.:

Cov.:

AF XY:

0.000330

AC XY:

239

AN XY:

723846

show subpopulations

African (AFR)

AF:

0.00575

AC:

192

AN:

33390

American (AMR)

AF:

0.000227

AC:

AN:

44048

Ashkenazi Jewish (ASJ)

AF:

0.0000385

AC:

AN:

25984

East Asian (EAS)

AF:

0.00

AC:

AN:

39530

South Asian (SAS)

AF:

0.000831

AC:

AN:

85476

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51880

Middle Eastern (MID)

AF:

0.00894

AC:

AN:

5372

European-Non Finnish (NFE)

AF:

0.000111

AC:

123

AN:

1110198

Other (OTH)

AF:

0.000532

AC:

AN:

60096

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

128

160

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00200

AC:

305

AN:

152268

Hom.:

Cov.:

AF XY:

0.00189

AC XY:

141

AN XY:

74458

show subpopulations

African (AFR)

AF:

0.00674

AC:

280

AN:

41540

American (AMR)

AF:

0.000327

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.0408

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68016

Other (OTH)

AF:

0.00189

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.0000895

Hom.:

Bravo

AF:

0.00228

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

T-B+ severe combined immunodeficiency due to JAK3 deficiency

Uncertain:1Benign:1

Jan 26, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not specified

Benign:1

Feb 21, 2014

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided

Benign:1

Jun 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

JAK3: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

0.24

(source)

DANN

Benign

0.48

PhyloP100

-1.7

PromoterAI

-0.012

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over