NM_000051.4(ATM):c.2126T>A (p.Ile709Asn) AND Ataxia-telangiectasia syndrome

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Sep 3, 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:: RCV001915785.5

Allele description [Variation Report for NM_000051.4(ATM):c.2126T>A (p.Ile709Asn)]

NM_000051.4(ATM):c.2126T>A (p.Ile709Asn)

Gene:

ATM:ATM serine/threonine kinase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

11q22.3

Genomic location:

Preferred name:

NM_000051.4(ATM):c.2126T>A (p.Ile709Asn)

HGVS:

NC_000011.10:g.108256216T>A
NG_009830.1:g.38385T>A
NM_000051.4:c.2126T>AMANE SELECT
NM_001351834.2:c.2126T>A
NP_000042.3:p.Ile709Asn
NP_001338763.1:p.Ile709Asn
LRG_135:g.38385T>A
NC_000011.9:g.108126943T>A

Protein change:

I709N

Links:

dbSNP: rs2135392028

NCBI 1000 Genomes Browser:

rs2135392028

Molecular consequence:

NM_000051.4:c.2126T>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001351834.2:c.2126T>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Ataxia-telangiectasia syndrome (AT)
Synonyms:: Louis-Bar syndrome; Cerebello-oculocutaneous telangiectasia; Immunodeficiency with ataxia telangiectasia; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0008840; MedGen: C0004135; Orphanet: 100; OMIM: 208900

Recent activity

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RAB17 RAB17, member RAS oncogene family [Homo sapiens]
RAB17 RAB17, member RAS oncogene family [Homo sapiens]
Gene ID:64284

Gene
64284[uid] AND (alive[prop]) (1)
Gene

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002180974	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 3, 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

SCV002180974

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 3, 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 Labcorp Genetics (formerly Invitae), Labcorp, SCV002180974.4

#	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. This variant has not been reported in the literature in individuals affected with ATM-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces isoleucine with asparagine at codon 709 of the ATM protein (p.Ile709Asn). The isoleucine residue is weakly conserved and there is a large physicochemical difference between isoleucine and asparagine.

#	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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