19-17844310-C-G

Position:

• chr19-17844310-C-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_000215.4(JAK3):​c.108G>C​(p.Gly36=) 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
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:3
• Conservation: PhyloP100: -1.67

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]

ACMG classification

Verdict is Benign. Variant got -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 id is 137599.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=2}.
• BP7: Synonymous conserved (PhyloP=-1.67 with no splicing effect.
• BS1: Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.000328 (477/1455974) while in subpopulation MID AF= 0.00894 (48/5372). AF 95% confidence interval is 0.00692. There are 2 homozygotes in gnomad4_exome. There are 239 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
JAK3	NM_000215.4	c.108G>C	p.Gly36=	synonymous_variant	2/24	ENST00000458235.7
JAK3	XM_047438786.1	c.108G>C	p.Gly36=	synonymous_variant	2/24
JAK3	XM_011527991.3	c.108G>C	p.Gly36=	synonymous_variant	2/14
JAK3	XR_007066796.1	n.158G>C		non_coding_transcript_exon_variant	2/20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
JAK3	ENST00000458235.7	c.108G>C	p.Gly36=	synonymous_variant	2/24	5	NM_000215.4	P1

Frequencies

GnomAD3 genomes AF: 0.00200 AC: 305 AN: 152150 Hom.: 3 Cov.: 31

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

GnomAD3 exomes AF: 0.000560 AC: 132 AN: 235920 Hom.: 1 AF XY: 0.000443 AC XY: 57 AN XY: 128754

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 SAS exome AF: 0.000677

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.: 2 Cov.: 32 AF XY: 0.000330 AC XY: 239 AN XY: 723846

Gnomad4 AFR exome AF: 0.00575

Gnomad4 AMR exome AF: 0.000227

Gnomad4 ASJ exome AF: 0.0000385

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000831

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000111

Gnomad4 OTH exome AF: 0.000532

GnomAD4 genome AF: 0.00200 AC: 305 AN: 152268 Hom.: 3 Cov.: 31 AF XY: 0.00189 AC XY: 141 AN XY: 74458

Gnomad4 AFR AF: 0.00674

Gnomad4 AMR AF: 0.000327

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.0000895 Hom.: 0

Bravo AF: 0.00228

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:3

Revision: criteria provided, conflicting classifications

Submissions by phenotype

T-B+ severe combined immunodeficiency due to JAK3 deficiency Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	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. -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 29, 2024	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Feb 21, 2014

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

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Jul 01, 2022

JAK3: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	0.24
DANN	Benign	0.48

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

LitVar

Other links and lift over

dbSNP: rs149701114; hg19: chr19-17955119;