VCV001184285.2 - ClinVar

NC_000023.11:g.77957506_78280549dup

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.

Uncertain significance

criteria provided, single submitter

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NC_000023.11:g.77957506_78280549dup

Variation ID: 1184285 Accession: VCV001184285.2

Type and length

Duplication, 323,044 bp

Location

Cytogenetic: Xq21.1 X: 77957506-78280549 (GRCh38) [ 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	Jul 31, 2021	Oct 7, 2023	Jun 12, 2020

HGVS

Nucleotide	Protein	Molecular consequence
NC_000023.11:g.77957506_78280549dup

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.
ATP7A		Sufficient evidence for dosage pathogenicity	No evidence available	GRCh38 GRCh37	1961	2152
PGK1		Some evidence for dosage pathogenicity	No evidence available	GRCh38 GRCh37	254	411
CYSLTR1		-	-	GRCh38 GRCh37	23	166
LOC126863282	-	-	-	GRCh38	-	69
LOC129391305	-	-	-	GRCh38	-	69
LOC130068462	-	-	-	GRCh38	-	67
LOC130068463	-	-	-	GRCh38	-	67
LOC130068464	-	-	-	GRCh38	-	67
LOC130068465	-	-	-	GRCh38	-	72
PGAM4		-	-	GRCh38 GRCh37	-	173

There is 1 more gene affected by this variant. See the full set of genes in Variation Viewer (GRCh38).

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	Uncertain significance (1)	criteria provided, single submitter	Jun 12, 2020	RCV001542276.1

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.
Uncertain significance (Jun 12, 2020)	criteria provided, single submitter (NYGC Assertion Criteria 2020) Method: clinical testing	Not provided Affected status: yes Allele origin: inherited	New York Genome Center Study: CSER-NYCKidSeq Accession: SCV001760959.2 First in ClinVar: Jul 31, 2021 Last updated: Oct 07, 2023	Comment: The maternally inherited Xq21.1 duplication is a 323KB tandem duplication on the long arm of the X chromosome. This duplication contains 4 OMIM associated genes … (more) The maternally inherited Xq21.1 duplication is a 323KB tandem duplication on the long arm of the X chromosome. This duplication contains 4 OMIM associated genes including full duplication of TAF9B and PGK1, as well as partial duplication of genes CYSLTR1 and ATP7A. To our current knowledge, the duplication identified in this individual has not been reported in the literature. Of the four OMIM associated genes within this duplication, two are disease associated. Pathogenic variants in PGK1 are associated with Phosphoglycerate kinase 1 deficiency (MIM#300653), and pathogenic variants in ATP7A are associated with Menkes disease (MIM#309400), Occipital horn syndrome (MIM#304150), and Spinal muscular atrophy, distal, X-Linked 3 (MIM#300489). Given the uncertainty regarding the functional consequence of the Xq21.1 duplication, it is reported here as a Variant of Uncertain Significance. (less) Number of individuals with the variant: 1 Clinical Features: Seizure (present) Secondary finding: no

Comment:

The maternally inherited Xq21.1 duplication is a 323KB tandem duplication on the long arm of the X chromosome. This duplication contains 4 OMIM associated genes including full duplication of TAF9B and PGK1, as well as partial duplication of genes CYSLTR1 and ATP7A. To our current knowledge, the duplication identified in this individual has not been reported in the literature. Of the four OMIM associated genes within this duplication, two are disease associated. Pathogenic variants in PGK1 are associated with Phosphoglycerate kinase 1 deficiency (MIM#300653), and pathogenic variants in ATP7A are associated with Menkes disease (MIM#309400), Occipital horn syndrome (MIM#304150), and Spinal muscular atrophy, distal, X-Linked 3 (MIM#300489). Given the uncertainty regarding the functional consequence of the Xq21.1 duplication, it is reported here as a Variant of Uncertain Significance.

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 Oct 15, 2023

ClinVar Genomic variation as it relates to human health

NC_000023.11:g.77957506_78280549dup

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...