Genetic Variant JAK3:p.Leu570Leu (chr19-17837205-C-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_ModerateBP6_ModerateBP7

The NM_000215.4(JAK3):c.1710G>A(p.Leu570Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 1,567,270 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00089 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

JAK3
NM_000215.4 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.40

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 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.34).

BP6

Variant 19-17837205-C-T is Benign according to our data. Variant chr19-17837205-C-T is described in ClinVar as [Benign]. Clinvar id is 532750.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.4 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JAK3	NM_000215.4 link	c.1710G>A	p.Leu570Leu	synonymous_variant	Exon 13 of 24	ENST00000458235.7	NP_000206.2	P52333-1A0A024R7M7
JAK3	XM_047438786.1 link	c.1710G>A	p.Leu570Leu	synonymous_variant	Exon 13 of 24		XP_047294742.1
JAK3	XM_011527991.3 link	c.1710G>A	p.Leu570Leu	synonymous_variant	Exon 13 of 14		XP_011526293.2
JAK3	XR_007066796.1 link	n.1760G>A		non_coding_transcript_exon_variant	Exon 13 of 20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JAK3	ENST00000458235.7 link	c.1710G>A	p.Leu570Leu	synonymous_variant	Exon 13 of 24	5	NM_000215.4	ENSP00000391676.1		P52333-1

Frequencies

GnomAD3 genomes

AF:

0.000874

AC:

133

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00311

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000478

GnomAD3 exomes

AF:

0.000250

AC:

AN:

179850

Hom.:

AF XY:

0.000168

AC XY:

AN XY:

95242

show subpopulations

Gnomad AFR exome

AF:

0.00372

Gnomad AMR exome

AF:

0.000186

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000912

AC:

129

AN:

1415016

Hom.:

Cov.:

AF XY:

0.0000815

AC XY:

AN XY:

699346

show subpopulations

Gnomad4 AFR exome

AF:

0.00355

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000136

GnomAD4 genome

AF:

0.000887

AC:

135

AN:

152254

Hom.:

Cov.:

AF XY:

0.000886

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.00315

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000344

Hom.:

Bravo

AF:

0.00106

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

T-B+ severe combined immunodeficiency due to JAK3 deficiency

Benign:1

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.34

CADD

Benign

8.6

DANN

Benign

0.80

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.14

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over