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NM_000368.5(TSC1):c.1988A>T (p.Glu663Val) AND Hereditary cancer-predisposing syndrome

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jan 29, 2024
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:
RCV004031046.1

Allele description [Variation Report for NM_000368.5(TSC1):c.1988A>T (p.Glu663Val)]

NM_000368.5(TSC1):c.1988A>T (p.Glu663Val)

Gene:
TSC1:TSC complex subunit 1 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
9q34.13
Genomic location:
Preferred name:
NM_000368.5(TSC1):c.1988A>T (p.Glu663Val)
HGVS:
  • NC_000009.12:g.132905590T>A
  • NG_012386.1:g.44044A>T
  • NM_000368.5:c.1988A>TMANE SELECT
  • NM_001162426.2:c.1985A>T
  • NM_001162427.2:c.1835A>T
  • NM_001362177.2:c.1625A>T
  • NP_000359.1:p.Glu663Val
  • NP_001155898.1:p.Glu662Val
  • NP_001155899.1:p.Glu612Val
  • NP_001349106.1:p.Glu542Val
  • LRG_486t1:c.1988A>T
  • LRG_486:g.44044A>T
  • NC_000009.11:g.135780977T>A
  • NM_000368.4:c.1988A>T
Protein change:
E542V
Links:
dbSNP: rs1845605103
NCBI 1000 Genomes Browser:
rs1845605103
Molecular consequence:
  • NM_000368.5:c.1988A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001162426.2:c.1985A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001162427.2:c.1835A>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001362177.2:c.1625A>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Hereditary cancer-predisposing syndrome
Synonyms:
Neoplastic Syndromes, Hereditary; Tumor predisposition; Cancer predisposition; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0015356; MeSH: D009386; MedGen: C0027672

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Assertion and evidence details

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Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV005034663Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)		Uncertain significance
(Jan 29, 2024) 		germlineclinical testing

Citation Link

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Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Details of each submission

From Ambry Genetics, SCV005034663.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided

Description

The p.E663V variant (also known as c.1988A>T), located in coding exon 13 of the TSC1 gene, results from an A to T substitution at nucleotide position 1988. The glutamic acid at codon 663 is replaced by valine, an amino acid with dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this alteration remains unclear.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024