VCV000655214.1 - ClinVar

NC_000016.9:g.(?_624055)_(2115656_?)del

Germline

Classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

(1)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Pathogenic

criteria provided, single submitter

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NC_000016.9:g.(?_624055)_(2115656_?)del

Variation ID: 655214 Accession: VCV000655214.1

Type and length

Deletion, 1,491,602 bp

Location

Cytogenetic: 16p13.3 16: 624055-2115656 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	Aug 14, 2019	Aug 14, 2019	Nov 28, 2018

HGVS

Nucleotide	Protein	Molecular consequence
NC_000016.9:g.(?_624055)_(2115656_?)del

Protein change

Other names

Canonical SPDI

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

Allele frequency Help The frequency of the allele represented by this VCV record.

Links

VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
TSC2		Sufficient evidence for dosage pathogenicity	No evidence available	GRCh38 GRCh37	10745	10944
TPSD1		Dosage sensitivity unlikely	No evidence available	GRCh38 GRCh37	40	103
SOX8		No evidence available	No evidence available	GRCh38 GRCh37	75	139
ANTKMT		-	-	GRCh38 GRCh37	26	95
BAIAP3		-	-	GRCh38 GRCh37	150	210
C1QTNF8		-	-	GRCh38 GRCh37	22	84
CACNA1H		-	-	GRCh38 GRCh37	3465	3529
CCDC154		-	-	GRCh38 GRCh37	78	134
CCDC78		-	-	GRCh38 GRCh37	559	621
CHTF18		-	-	GRCh38 GRCh37	149	217

There are 61 more genes affected by this variant. See the full set of genes in Variation Viewer (GRCh37) and ClinGen Dosage Sensitivity Map.

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
Tuberous sclerosis 2	Pathogenic (1)	criteria provided, single submitter	Nov 28, 2018	RCV000811345.2

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	More information Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Pathogenic (Nov 28, 2018)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	Tuberous sclerosis 2 Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV000951606.1 First in ClinVar: Aug 14, 2019 Last updated: Aug 14, 2019	Publications: PubMed (1) PubMed: 29932062 Comment: This variant is a gross deletion of the genomic region encompassing exons 1 to 16 of the TSC2 gene, which includes the initiator codon. The … (more) This variant is a gross deletion of the genomic region encompassing exons 1 to 16 of the TSC2 gene, which includes the initiator codon. The 5' end of this event is unknown as it extends beyond the assayed region for this gene and therefore may encompass additional genes. The 3' boundary is likely confined to intron 16 of the TSC2 gene. This is expected to result in an absent or disrupted protein product. A similar deletion of exons 1-16 was observed to be de novo in an individual affected with tuberous sclerosis complex (PMID: 29932062). Loss-of-function variants in TSC2 are known to be pathogenic (PMID: 10205261, 17304050). For these reasons, this variant has been classified as Pathogenic. (less)

Comment:

This variant is a gross deletion of the genomic region encompassing exons 1 to 16 of the TSC2 gene, which includes the initiator codon. The 5' end of this event is unknown as it extends beyond the assayed region for this gene and therefore may encompass additional genes. The 3' boundary is likely confined to intron 16 of the TSC2 gene. This is expected to result in an absent or disrupted protein product. A similar deletion of exons 1-16 was observed to be de novo in an individual affected with tuberous sclerosis complex (PMID: 29932062). Loss-of-function variants in TSC2 are known to be pathogenic (PMID: 10205261, 17304050). For these reasons, this variant has been classified as Pathogenic.

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

Citations for germline classification of this variant

Title	Author	Journal	Year	Link
Molecular genetic diagnostics of tuberous sclerosis complex in Bulgaria: six novel mutations in the TSC1 and TSC2 genes.	Glushkova M	Journal of genetics	2018	PMID: 29932062

Text-mined citations for this variant ...

Record last updated Sep 29, 2024

ClinVar Genomic variation as it relates to human health

NC_000016.9:g.(?_624055)_(2115656_?)del

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...