NM_033629.6(TREX1):c.440T>C (p.Leu147Pro) AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Feb 11, 2023
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:: RCV003805929.2

Allele description [Variation Report for NM_033629.6(TREX1):c.440T>C (p.Leu147Pro)]

NM_033629.6(TREX1):c.440T>C (p.Leu147Pro)

Genes:

ATRIP:ATR interacting protein [Gene - OMIM - HGNC]
ATRIP-TREX1:ATRIP-TREX1 readthrough [Gene]
TREX1:three prime repair exonuclease 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

3p21.31

Genomic location:

Preferred name:

NM_033629.6(TREX1):c.440T>C (p.Leu147Pro)

HGVS:

NC_000003.12:g.48467095T>C
NG_009820.2:g.6266T>C
NG_033100.1:g.38766A>G
NG_033100.2:g.42715A>G
NG_041782.1:g.25386T>C
NG_099339.1:g.1038T>C
NG_099340.1:g.156T>C
NM_001271022.2:c.*1541T>C
NM_001271023.2:c.*1541T>C
NM_007248.5:c.410T>C
NM_032166.4:c.*1541T>C
NM_033629.6:c.440T>CMANE SELECT
NM_130384.3:c.*1541T>CMANE SELECT
NP_009179.2:p.Leu137Pro
NP_338599.1:p.Leu147Pro
NP_338599.1:p.Leu147Pro
LRG_282t1:c.440T>C
LRG_282:g.6266T>C
LRG_282p1:p.Leu147Pro
NC_000003.11:g.48508494T>C
NM_033629.4:c.440T>C
NR_153405.1:n.3749T>C

Protein change:

L137P

Molecular consequence:

NM_001271022.2:c.*1541T>C - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_001271023.2:c.*1541T>C - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_032166.4:c.*1541T>C - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_130384.3:c.*1541T>C - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_007248.5:c.410T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_033629.6:c.440T>C - missense variant - [Sequence Ontology: SO:0001583]
NR_153405.1:n.3749T>C - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Aicardi-Goutieres syndrome 1
Synonyms:: CREE ENCEPHALITIS; ENCEPHALOPATHY, FAMILIAL INFANTILE, WITH INTRACRANIAL CALCIFICATION AND CHRONIC CEREBROSPINAL FLUID LYMPHOCYTOSIS; PSEUDOTOXOPLASMOSIS SYNDROME
Identifiers:: MONDO: MONDO:0009165; MedGen: C0796126; Orphanet: 51; OMIM: 225750

Name:: Chilblain lupus 1 (CHBL1)
Identifiers:: MONDO: MONDO:0012500; MedGen: C0024145; OMIM: 610448

Name:: Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCLS)
Synonyms:: Vasculopathy, retinal, with cerebral leukodystrophy; Cerebroretinal vasculopathy, hereditary; Retinopathy, vascular, with cerebral and renal involvement and Raynaud and migraine phenomena
Identifiers:: MONDO: MONDO:0008641; MedGen: C1860518; Orphanet: 3421; Orphanet: 63261; Orphanet: 71291; OMIM: 192315

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004592197	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Feb 11, 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

SCV004592197

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Feb 11, 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	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, SCV004592197.1

#	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 leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 147 of the TREX1 protein (p.Leu147Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TREX1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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

Last Updated: Sep 29, 2024

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