NM_018344.6(SLC29A3):c.821A>G (p.Glu274Gly) AND H syndrome

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Jul 22, 2021
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV002048297.5

Allele description [Variation Report for NM_018344.6(SLC29A3):c.821A>G (p.Glu274Gly)]

NM_018344.6(SLC29A3):c.821A>G (p.Glu274Gly)

Gene:

SLC29A3:solute carrier family 29 member 3 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

10q22.1

Genomic location:

Preferred name:

NM_018344.6(SLC29A3):c.821A>G (p.Glu274Gly)

HGVS:

NC_000010.11:g.71362001A>G
NG_017066.2:g.47743A>G
NM_001174098.2:c.*50A>G
NM_001363518.2:c.587A>G
NM_018344.6:c.821A>GMANE SELECT
NP_001350447.1:p.Glu196Gly
NP_060814.4:p.Glu274Gly
LRG_1318t1:c.821A>G
LRG_1318:g.47743A>G
LRG_1318p1:p.Glu274Gly
NC_000010.10:g.73121758A>G
NR_033413.2:n.789A>G
NR_033414.2:n.562A>G

Protein change:

E196G

Links:

dbSNP: rs1847067185

NCBI 1000 Genomes Browser:

rs1847067185

Molecular consequence:

NM_001174098.2:c.*50A>G - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_001363518.2:c.587A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_018344.6:c.821A>G - missense variant - [Sequence Ontology: SO:0001583]
NR_033413.2:n.789A>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NR_033414.2:n.562A>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: H syndrome
Synonyms:: Histiocytosis with joint contractures and sensorineural deafness; Faisalabad histiocytosis; HISTIOCYTOSIS AND LYMPHADENOPATHY WITH OR WITHOUT CUTANEOUS, CARDIAC, AND/OR ENDOCRINE FEATURES, JOINT CONTRACTURES, AND/OR DEAFNESS; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0011273; MedGen: C1864445; Orphanet: 168569; OMIM: 602782

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002302086	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Jul 22, 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

SCV002302086

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Jul 22, 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

Details of each submission

From Invitae, SCV002302086.3

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

Description

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with SLC29A3-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glutamic acid with glycine at codon 274 of the SLC29A3 protein (p.Glu274Gly). The glutamic acid residue is weakly conserved and there is a moderate physicochemical difference between glutamic acid and glycine.

#	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: Mar 5, 2024

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