NC_000018.9:g.(?_43437798)_(43469925_?)dup AND Vici syndrome

Germline classification:: Likely pathogenic (1 submission)
Last evaluated:: Oct 30, 2023
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:: RCV004579805.2

Allele description [Variation Report for NC_000018.9:g.(?_43437798)_(43469925_?)dup]

NC_000018.9:g.(?_43437798)_(43469925_?)dup

Gene:: EPG5:ectopic P-granules 5 autophagy tethering factor [Gene - OMIM - HGNC]
Variant type:: Duplication
Cytogenetic location:: 18q12.3
Genomic location:: Chr18: 43437798 - 43469925 (on Assembly GRCh37)
Preferred name:: NC_000018.9:g.(?_43437798)_(43469925_?)dup
HGVS:: NC_000018.9:g.(?_43437798)_(43469925_?)dup
This HGVS expression did not pass validation

Condition(s)

Name:: Vici syndrome (VICIS)
Synonyms:: Absent corpus callosum cataract immunodeficiency; Immunodeficiency with cleft lip/palate, cataract, hypopigmentation and absent corpus callosum
Identifiers:: MONDO: MONDO:0009452; MedGen: C1855772; Orphanet: 1493; OMIM: 242840

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV005063803	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Likely pathogenic (Oct 30, 2023)	unknown	clinical testing	PubMed (4) [See all records that cite these PMIDs] 25640679, 23222957, 23674064, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV005063803

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Likely pathogenic
(Oct 30, 2023)

unknown

clinical testing

PubMed (4)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Next-generation sequencing of duplication CNVs reveals that most are tandem and some create fusion genes at breakpoints.

Newman S, Hermetz KE, Weckselblatt B, Rudd MK.

Am J Hum Genet. 2015 Feb 5;96(2):208-20. doi: 10.1016/j.ajhg.2014.12.017. Epub 2015 Jan 29.

PubMed [citation]

PMID:: 25640679
PMCID:: PMC4320257

Recessive mutations in EPG5 cause Vici syndrome, a multisystem disorder with defective autophagy.

Cullup T, Kho AL, Dionisi-Vici C, Brandmeier B, Smith F, Urry Z, Simpson MA, Yau S, Bertini E, McClelland V, Al-Owain M, Koelker S, Koerner C, Hoffmann GF, Wijburg FA, ten Hoedt AE, Rogers RC, Manchester D, Miyata R, Hayashi M, Said E, Soler D, et al.

Nat Genet. 2013 Jan;45(1):83-7. doi: 10.1038/ng.2497. Epub 2012 Dec 9.

PubMed [citation]

PMID:: 23222957
PMCID:: PMC4012842

See all PubMed Citations (4)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV005063803.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (4)

Description

This variant results in a copy number gain of the genomic region encompassing exon(s) 28-42 of the EPG5 gene. While the exact position of this variant cannot be determined from the data, sub-genic copy number gains are generally in tandem (PMID: 25640679). This variant is predicted to be out-of-frame, and may result in an absent or disrupted protein product. Loss-of-function variants in EPG5 are known to be pathogenic (PMID: 23222957, 23674064). This variant has not been reported in the literature in individuals affected with EPG5-related conditions. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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