rs748216175

Variant names:

• chr19-17834926-A-C
• rs748216175
• NM_000215.4:c.2125T>G

Your query was ambiguous. Multiple possible variants found:

• chr19-17834926-A-C
• chr19-17834926-A-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_000215.4(JAK3):​c.2125T>G​(p.Trp709Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. W709R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: JAK3 NM_000215.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.81
• Publications: 0 publications found

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

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.99

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	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	JAK3	NM_000215.4	MANE Select	c.2125T>G	p.Trp709Gly	missense	Exon 16 of 24	NP_000206.2
	JAK3	NM_001440439.1		c.2125T>G	p.Trp709Gly	missense	Exon 16 of 24	NP_001427368.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	JAK3	ENST00000458235.7	TSL:5 MANE Select	c.2125T>G	p.Trp709Gly	missense	Exon 16 of 24	ENSP00000391676.1
	JAK3	ENST00000527670.5	TSL:1	c.2125T>G	p.Trp709Gly	missense	Exon 15 of 23	ENSP00000432511.1
	JAK3	ENST00000534444.1	TSL:1	c.2125T>G	p.Trp709Gly	missense	Exon 16 of 23	ENSP00000436421.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 39

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.23
CADD	Pathogenic	32
DANN	Uncertain	0.98
DEOGEN2	Pathogenic	0.91	D
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.84
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.93	D
M_CAP	Pathogenic	0.68	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	0.67	D
MutationAssessor	Pathogenic	4.3	H
PhyloP100		8.8
PrimateAI	Pathogenic	0.81	D
PROVEAN	Pathogenic	-12	D
REVEL	Pathogenic	0.84
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.86
MutPred		0.90		Gain of disorder (P = 0.0043)
MVP		0.86
MPC		1.8
ClinPred		1.0	D
GERP RS		4.9
Varity_R		0.96
gMVP		0.98
Mutation Taster		=17/83	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

Other links and lift over

dbSNP: rs748216175; hg19: chr19-17945735;