NM_000203.5(IDUA):c.76G>A (p.Ala26Thr) AND Mucopolysaccharidosis type 1

Germline classification:: Conflicting interpretations of pathogenicity (3 submissions)
Last evaluated:: Jan 31, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV000884800.25

Allele description [Variation Report for NM_000203.5(IDUA):c.76G>A (p.Ala26Thr)]

NM_000203.5(IDUA):c.76G>A (p.Ala26Thr)

Genes:

IDUA:alpha-L-iduronidase [Gene - OMIM - HGNC]
SLC26A1:solute carrier family 26 member 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

4p16.3

Genomic location:

Preferred name:

NM_000203.5(IDUA):c.76G>A (p.Ala26Thr)

Other names:

p.Ala26Thr

HGVS:

NC_000004.12:g.987160G>A
NG_008103.1:g.5164G>A
NG_033042.1:g.11277C>T
NG_158244.2:g.360G>A
NM_000203.5:c.76G>AMANE SELECT
NM_134425.4:c.576+3968C>T
NP_000194.2:p.Ala26Thr
LRG_1277t1:c.76G>A
LRG_1277:g.5164G>A
LRG_1277p1:p.Ala26Thr
NC_000004.11:g.980948G>A
NM_000203.3:c.76G>A
NM_000203.4:c.76G>A
NR_110313.1:n.164G>A

Protein change:

A26T

Links:

dbSNP: rs746809894

NCBI 1000 Genomes Browser:

rs746809894

Molecular consequence:

NM_134425.4:c.576+3968C>T - intron variant - [Sequence Ontology: SO:0001627]
NM_000203.5:c.76G>A - missense variant - [Sequence Ontology: SO:0001583]
NR_110313.1:n.164G>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Mucopolysaccharidosis type 1
Synonyms:: Mucopolysaccharidosis type I; MPS 1; Attenuated MPS I (subtype); See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0001586; MedGen: C0023786

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001028201	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Likely benign (Jan 31, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001314991	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Uncertain significance (Apr 27, 2017)	germline	clinical testing	Citation Link,
SCV002083081	Natera, Inc.	no assertion criteria provided	Likely benign (Apr 30, 2018)	germline	clinical testing

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001028201

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Likely benign
(Jan 31, 2024)

germline

clinical testing

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

SCV001314991

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Uncertain significance
(Apr 27, 2017)

germline

clinical testing

Citation Link,

SCV002083081

Natera, Inc.

no assertion criteria provided

Likely benign
(Apr 30, 2018)

germline

clinical testing

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 Labcorp Genetics (formerly Invitae), Labcorp, SCV001028201.6

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

#	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 Illumina Laboratory Services, Illumina, SCV001314991.1

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

Description

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.

#	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 Natera, Inc., SCV002083081.1

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

#	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: Nov 24, 2024

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