NM_198253.3(TERT):c.835G>A (p.Ala279Thr) AND Dyskeratosis congenita, autosomal dominant 2

Germline classification:: Benign (2 submissions)
Last evaluated:: May 4, 2023
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:: RCV000391188.14

Allele description [Variation Report for NM_198253.3(TERT):c.835G>A (p.Ala279Thr)]

NM_198253.3(TERT):c.835G>A (p.Ala279Thr)

Gene:

TERT:telomerase reverse transcriptase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

5p15.33

Genomic location:

Preferred name:

NM_198253.3(TERT):c.835G>A (p.Ala279Thr)

HGVS:

NC_000005.10:g.1294051C>T
NG_009265.1:g.5997G>A
NM_001193376.3:c.835G>A
NM_198253.3:c.835G>AMANE SELECT
NP_001180305.1:p.Ala279Thr
NP_937983.2:p.Ala279Thr
NP_937983.2:p.Ala279Thr
LRG_343t1:c.835G>A
LRG_343:g.5997G>A
LRG_343p1:p.Ala279Thr
NC_000005.9:g.1294166C>T
NM_198253.2:c.835G>A
NR_149162.3:n.914G>A
NR_149163.3:n.914G>A
O14746:p.Ala279Thr

Protein change:

A279T

Links:

UniProtKB: O14746#VAR_036864; dbSNP: rs61748181

NCBI 1000 Genomes Browser:

rs61748181

Molecular consequence:

NM_001193376.3:c.835G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_198253.3:c.835G>A - missense variant - [Sequence Ontology: SO:0001583]
NR_149162.3:n.914G>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NR_149163.3:n.914G>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Dyskeratosis congenita, autosomal dominant 2
Identifiers:: MONDO: MONDO:0013521; MedGen: C3151443; OMIM: 613989

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000452706	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Benign (Jan 12, 2018)	germline	clinical testing	Citation Link,
SCV004812623	Molecular Genetics, Royal Melbourne Hospital See additional submitters Shariant Australia, Australian Genomics	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (May 4, 2023)	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

SCV000452706

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Benign
(Jan 12, 2018)

germline

clinical testing

Citation Link,

SCV004812623

Molecular Genetics, Royal Melbourne Hospital

See additional submitters

criteria provided, single submitter

(ACMG Guidelines, 2015)

Benign
(May 4, 2023)

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	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

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 Illumina Laboratory Services, Illumina, SCV000452706.3

#	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 in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.

#	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 Molecular Genetics, Royal Melbourne Hospital, SCV004812623.1

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

Description

European Non-Finnish population allele frequency is 2.81% (rs61748181, 1118/18984 alleles, 30 homozygotes in gnomAD v2.1). Based on the classification scheme RMH Modified ACMG/AMP Guidelines v1.5.1, this variant is classified as BENIGN. Following criteria are met: BA1

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

Last Updated: Oct 13, 2024

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