VCV002422206.3 - ClinVar

NC_000017.10:g.(?_3379454)_(3819519_?)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_000017.10:g.(?_3379454)_(3819519_?)del

Variation ID: 2422206 Accession: VCV002422206.3

Type and length

Deletion, 440,066 bp

Location

Cytogenetic: 17p13.2 17: 3379454-3819519 (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	Feb 13, 2023	Nov 11, 2023	Sep 27, 2022

HGVS

Nucleotide	Protein	Molecular consequence
NC_000017.10:g.(?_3379454)_(3819519_?)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.
ASPA		-	-	GRCh38 GRCh37	18	498
CAMKK1		-	-	GRCh38 GRCh37	49	91
CTNS		-	-	GRCh38 GRCh37	528	952
EMC6		-	-	GRCh38 GRCh37	-	59
HASPIN		-	-	GRCh38 GRCh37	-	136
ITGAE		-	-	GRCh38 GRCh37	115	263
NCBP3		-	-	GRCh38 GRCh37	32	86
P2RX1		-	-	GRCh38 GRCh37	63	103
P2RX5		-	-	GRCh38 GRCh37	-	119
SHPK		-	-	GRCh38 GRCh37	158	282

There are 3 more genes affected by this variant. See the full set of genes in Variation Viewer (GRCh37).

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.
Spongy degeneration of central nervous system	Pathogenic (1)	criteria provided, single submitter	Sep 27, 2022	RCV003119152.3

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 (Sep 27, 2022)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	Spongy degeneration of central nervous system Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV003790113.2 First in ClinVar: Feb 13, 2023 Last updated: Nov 11, 2023	Publications: PubMed (2) PubMed: 12638939‚ 19932039 Comment: A gross deletion of the genomic region encompassing the full coding sequence of the ASPA gene has been identified. Loss-of-function variants in ASPA are known … (more) A gross deletion of the genomic region encompassing the full coding sequence of the ASPA gene has been identified. Loss-of-function variants in ASPA are known to be pathogenic (PMID: 12638939). The boundaries of this event are unknown as they extend beyond the assayed region for this gene and therefore may encompass additional genes. A similar copy number variant has been observed in individual(s) with Canavan disease (PMID: 19932039). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. For these reasons, this variant has been classified as Pathogenic. (less)

Comment:

A gross deletion of the genomic region encompassing the full coding sequence of the ASPA gene has been identified. Loss-of-function variants in ASPA are known to be pathogenic (PMID: 12638939). The boundaries of this event are unknown as they extend beyond the assayed region for this gene and therefore may encompass additional genes. A similar copy number variant has been observed in individual(s) with Canavan disease (PMID: 19932039). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. 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
A 439 kb-sized homozygous deletion in 17p13.3 leading to biallelic loss of the ASPA as cause of Canavan disease detected by SNP-array analysis.	Caliebe A	Molecular genetics and metabolism	2010	PMID: 19932039
Identification and characterization of novel mutations of the aspartoacylase gene in non-Jewish patients with Canavan disease.	Zeng BJ	Journal of inherited metabolic disease	2002	PMID: 12638939

Text-mined citations for this variant ...

Record last updated Jan 13, 2025

ClinVar Genomic variation as it relates to human health

NC_000017.10:g.(?_3379454)_(3819519_?)del

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...