VCV001807738.1 - ClinVar

GRCh37/hg19 2p15(chr2:61379352-61928100)x1

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

GRCh37/hg19 2p15(chr2:61379352-61928100)x1

Variation ID: 1807738 Accession: VCV001807738.1

Type and length

copy number loss, -

Location

Cytogenetic: 2p15 2: 61379352-61928100 (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	Dec 31, 2022	Dec 31, 2022	Aug 13, 2021

HGVS

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.
C2orf74	-	-	-	GRCh38 GRCh37	-	33
USP34		-	-	GRCh38 GRCh37	215	259
XPO1		-	-	GRCh38 GRCh37	24	63

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.
not provided	Pathogenic (1)	criteria provided, single submitter	Aug 13, 2021	RCV002472544.1

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 (Aug 13, 2021)	criteria provided, single submitter (ACMG/ClinGen CNV Guidelines, 2019) Method: clinical testing	not provided Affected status: unknown Allele origin: unknown	Quest Diagnostics Nichols Institute San Juan Capistrano Accession: SCV002772412.1 First in ClinVar: Dec 31, 2022 Last updated: Dec 31, 2022	Comment: The copy number loss of 2p15 involves multiple protein-coding genes, including USP34 (OMIM 615295) and XPO1 (OMIM 602559), and is expected to cause phenotypic and/or … (more) The copy number loss of 2p15 involves multiple protein-coding genes, including USP34 (OMIM 615295) and XPO1 (OMIM 602559), and is expected to cause phenotypic and/or behavioral abnormalities. Although none of the genes is currently associated with an OMIM phenotype, hemizygous deletions overlapping this region are associated with chromosome 2p16.1-p15 deletion syndrome (OMIM 612513), a neurodevelopmental disorder characterized by delayed psychomotor development, moderate-to-severe intellectual disability, and variable but distinctive dysmorphic features. Many patients have behavioral disorders, including autism/autistic features, as well as structural brain abnormalities (pachygyria, hypoplastic corpus callosum) and renal anomalies (multicystic kidney, hydronephrosis) (Levy 2017). Reported deletions range from 103 kb to 9.6 Mb and two critical regions have been proposed: a proximal region at 2p15 containing XPO1, SNORA70B and USP34 (fully encompassed in this interval) (Fannemel 2014), and a distal region at 2p16.1 containing BCL11A (OMIM 606557) (Peter 2014). Both critical regions share similar phenotypes, including developmental delay/intellectual disability, speech deficits, dysmorphic features, and brain abnormalities. There are multiple reports of affected individuals with deletions similar to or smaller than the current loss interval (Levy 2017, Bagheri 2016, Ronzoni 2015, Shimojima 2015, Fannemel 2014, Chabchoub 2008). References: Bagheri et al., JCI Insight. 2016 Mar 17;1(3):e85461. PMID: 27699255. Chabchoub et al., J Med Genet. 2008 Mar;45(3):189-92. PMID: 18310269. Fannemel et al., Eur J Med Genet. 2014 Sep;57(9):513-9. PMID: 24911659. Levy et al., Am J Med Genet A. 2017 Aug;173(8):2081-2087. PMID: 28573701. Peter et al., Am J Med Genet A. 2014 Aug;164A(8):2091-6. PMID: 24810580. Ronzoni et al., Congenit Anom (Kyoto). 2015 Nov;55(4):191-2. PMID: 26153024. Shimojima et al., Congenit Anom (Kyoto). 2015 Aug;55(3):125-32. PMID: 25900130. (less)

Comment:

The copy number loss of 2p15 involves multiple protein-coding genes, including USP34 (OMIM 615295) and XPO1 (OMIM 602559), and is expected to cause phenotypic and/or behavioral abnormalities. Although none of the genes is currently associated with an OMIM phenotype, hemizygous deletions overlapping this region are associated with chromosome 2p16.1-p15 deletion syndrome (OMIM 612513), a neurodevelopmental disorder characterized by delayed psychomotor development, moderate-to-severe intellectual disability, and variable but distinctive dysmorphic features. Many patients have behavioral disorders, including autism/autistic features, as well as structural brain abnormalities (pachygyria, hypoplastic corpus callosum) and renal anomalies (multicystic kidney, hydronephrosis) (Levy 2017). Reported deletions range from 103 kb to 9.6 Mb and two critical regions have been proposed: a proximal region at 2p15 containing XPO1, SNORA70B and USP34 (fully encompassed in this interval) (Fannemel 2014), and a distal region at 2p16.1 containing BCL11A (OMIM 606557) (Peter 2014). Both critical regions share similar phenotypes, including developmental delay/intellectual disability, speech deficits, dysmorphic features, and brain abnormalities. There are multiple reports of affected individuals with deletions similar to or smaller than the current loss interval (Levy 2017, Bagheri 2016, Ronzoni 2015, Shimojima 2015, Fannemel 2014, Chabchoub 2008). References: Bagheri et al., JCI Insight. 2016 Mar 17;1(3):e85461. PMID: 27699255. Chabchoub et al., J Med Genet. 2008 Mar;45(3):189-92. PMID: 18310269. Fannemel et al., Eur J Med Genet. 2014 Sep;57(9):513-9. PMID: 24911659. Levy et al., Am J Med Genet A. 2017 Aug;173(8):2081-2087. PMID: 28573701. Peter et al., Am J Med Genet A. 2014 Aug;164A(8):2091-6. PMID: 24810580. Ronzoni et al., Congenit Anom (Kyoto). 2015 Nov;55(4):191-2. PMID: 26153024. Shimojima et al., Congenit Anom (Kyoto). 2015 Aug;55(3):125-32. PMID: 25900130.

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

There are no citations for germline classification of this variant in ClinVar. If you know of citations for this variation, please consider submitting that information to ClinVar.

Text-mined citations for this variant ...

Record last updated Dec 31, 2022

ClinVar Genomic variation as it relates to human health

GRCh37/hg19 2p15(chr2:61379352-61928100)x1

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...