dbSNP rs55882956: TYK2:p.Arg703Trp (chr19-10359243-G-A) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_003331.5(TYK2):c.2107C>T(p.Arg703Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00298 in 1,610,784 control chromosomes in the GnomAD database, including 40 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R703Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0028 ( 4 hom., cov: 31)

Exomes 𝑓: 0.0030 ( 36 hom. )

Consequence

TYK2
NM_003331.5 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.13

Publications

32 publications found

Variant links:

Genes affected

TYK2 (HGNC:12440): (tyrosine kinase 2) This gene encodes a member of the tyrosine kinase and, more specifically, the Janus kinases (JAKs) protein families. This protein associates with the cytoplasmic domain of type I and type II cytokine receptors and promulgate cytokine signals by phosphorylating receptor subunits. It is also a component of both the type I and type III interferon signaling pathways. As such, it may play a role in anti-viral immunity. A mutation in this gene has been associated with Immunodeficiency 35. [provided by RefSeq, Sep 2020]

TYK2 Gene-Disease associations (from GenCC):

immunodeficiency 35
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

TYK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006138116).

BP6

Variant 19-10359243-G-A is Benign according to our data. Variant chr19-10359243-G-A is described in ClinVar as Benign. ClinVar VariationId is 327942.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00283 (431/152282) while in subpopulation EAS AF = 0.0261 (135/5172). AF 95% confidence interval is 0.0225. There are 4 homozygotes in GnomAd4. There are 210 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003331.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TYK2	NM_003331.5	MANE Select	c.2107C>T	p.Arg703Trp	missense	Exon 15 of 25	NP_003322.3
TYK2	NM_001385204.1		c.2107C>T	p.Arg703Trp	missense	Exon 15 of 25	NP_001372133.1
TYK2	NM_001385203.1		c.2107C>T	p.Arg703Trp	missense	Exon 15 of 26	NP_001372132.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TYK2	ENST00000525621.6	TSL:1 MANE Select	c.2107C>T	p.Arg703Trp	missense	Exon 15 of 25	ENSP00000431885.1	P29597
TYK2	ENST00000524462.5	TSL:1	c.1552C>T	p.Arg518Trp	missense	Exon 11 of 21	ENSP00000433203.1	E9PM19
TYK2	ENST00000531836.7	TSL:4	c.2107C>T	p.Arg703Trp	missense	Exon 15 of 25	ENSP00000436175.2	P29597

Frequencies

GnomAD3 genomes

AF:

0.00286

AC:

435

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000603

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0100

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.0264

Gnomad SAS

AF:

0.00373

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00135

Gnomad OTH

AF:

0.00383

GnomAD2 exomes

AF:

0.00721

AC:

1779

AN:

246894

AF XY:

0.00609

show subpopulations

Gnomad AFR exome

AF:

0.000502

Gnomad AMR exome

AF:

0.0283

Gnomad ASJ exome

AF:

0.000801

Gnomad EAS exome

AF:

0.0301

Gnomad FIN exome

AF:

0.0000507

Gnomad NFE exome

AF:

0.00116

Gnomad OTH exome

AF:

0.00495

GnomAD4 exome

AF:

0.00300

AC:

4372

AN:

1458502

Hom.:

Cov.:

AF XY:

0.00291

AC XY:

2112

AN XY:

725646

show subpopulations

African (AFR)

AF:

0.000329

AC:

AN:

33476

American (AMR)

AF:

0.0254

AC:

1135

AN:

44608

Ashkenazi Jewish (ASJ)

AF:

0.000727

AC:

AN:

26120

East Asian (EAS)

AF:

0.0270

AC:

1072

AN:

39692

South Asian (SAS)

AF:

0.00269

AC:

232

AN:

86198

European-Finnish (FIN)

AF:

0.0000991

AC:

AN:

50430

Middle Eastern (MID)

AF:

0.000695

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00154

AC:

1710

AN:

1111858

Other (OTH)

AF:

0.00305

AC:

184

AN:

60362

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

272

544

817

1089

1361

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

208

312

416

520

<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:

0.00283

AC:

431

AN:

152282

Hom.:

Cov.:

AF XY:

0.00282

AC XY:

210

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.000601

AC:

AN:

41580

American (AMR)

AF:

0.00994

AC:

152

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.000576

AC:

AN:

3472

East Asian (EAS)

AF:

0.0261

AC:

135

AN:

5172

South Asian (SAS)

AF:

0.00353

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00135

AC:

AN:

68018

Other (OTH)

AF:

0.00379

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

108

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:

0.00212

Hom.:

Bravo

AF:

0.00446

TwinsUK

AF:

0.00162

AC:

ALSPAC

AF:

0.00234

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00174

AC:

ExAC

AF:

0.00664

AC:

806

Asia WGS

AF:

0.0120

AC:

AN:

3478

EpiCase

AF:

0.000927

EpiControl

AF:

0.00119

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Immunodeficiency 35 (2)

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.63

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.44

LIST_S2

Uncertain

0.93

MetaRNN

Benign

0.0061

MetaSVM

Benign

-0.45

MutationAssessor

Pathogenic

2.9

PhyloP100

1.1

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-4.0

REVEL

Benign

0.21

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

1.0

Vest4

0.44

MVP

0.53

MPC

0.90

ClinPred

0.036

GERP RS

0.034

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.6

Varity_R

0.32

gMVP

0.57

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over