NM_003331.5(TYK2):c.2429A>T (p.Asp810Val) AND Immunodeficiency 35

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Sep 19, 2022
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000645232.10

Allele description [Variation Report for NM_003331.5(TYK2):c.2429A>T (p.Asp810Val)]

NM_003331.5(TYK2):c.2429A>T (p.Asp810Val)

Gene:

TYK2:tyrosine kinase 2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19p13.2

Genomic location:

Preferred name:

NM_003331.5(TYK2):c.2429A>T (p.Asp810Val)

HGVS:

NC_000019.10:g.10357801T>A
NG_007872.1:g.27772A>T
NM_003331.5:c.2429A>TMANE SELECT
NP_003322.3:p.Asp810Val
LRG_121t1:c.2429A>T
LRG_121:g.27772A>T
NC_000019.9:g.10468477T>A
NM_003331.4:c.2429A>T

Protein change:

D810V

Links:

dbSNP: rs371070470

NCBI 1000 Genomes Browser:

rs371070470

Molecular consequence:

NM_003331.5:c.2429A>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Immunodeficiency 35 (IMD35)
Synonyms:: HIES WITH ATYPICAL MYCOBACTERIOSIS, AUTOSOMAL RECESSIVE; HYPER-IgE SYNDROME WITH ATYPICAL MYCOBACTERIOSIS, AUTOSOMAL RECESSIVE; TYK2 DEFICIENCY; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0012682; MedGen: C1969086; OMIM: 611521

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000766974	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 19, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001468400	Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 30, 2021)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000766974

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 19, 2022)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001468400

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Mar 30, 2021)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000766974.6

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This sequence change replaces aspartic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 810 of the TYK2 protein (p.Asp810Val). This variant is present in population databases (rs371070470, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with TYK2-related conditions. ClinVar contains an entry for this variant (Variation ID: 536645). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TYK2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago, SCV001468400.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

TYK2 NM_003331.4 exon 17 p.Asp810Val (c.2429A>T): This variant has not been reported in the literature but is present in 0.01% (24/127490) of European alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/19-10468477-T-A?dataset=gnomad_r2_1). This variant is present in ClinVar (Variation ID:536645). Evolutionary conservation suggests that this variant may not impact the protein; computational predictive tools suggest that this variant may impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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