NM_152564.5(VPS13B):c.7366G>A (p.Val2456Ile) AND Cohen syndrome

Germline classification:: Conflicting classifications of pathogenicity (5 submissions)
Last evaluated:: Nov 27, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV000169023.26

Allele description [Variation Report for NM_152564.5(VPS13B):c.7366G>A (p.Val2456Ile)]

NM_152564.5(VPS13B):c.7366G>A (p.Val2456Ile)

Gene:

VPS13B:vacuolar protein sorting 13 homolog B [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

8q22.2

Genomic location:

Preferred name:

NM_152564.5(VPS13B):c.7366G>A (p.Val2456Ile)

HGVS:

NC_000008.11:g.99776893G>A
NG_007098.2:g.768628G>A
NM_017890.5:c.7441G>A
NM_152564.4:c.7366G>A
NM_152564.5:c.7366G>AMANE SELECT
NP_060360.3:p.Val2481Ile
NP_689777.3:p.Val2456Ile
LRG_351t1:c.7441G>A
LRG_351t2:c.7366G>A
LRG_351:g.768628G>A
LRG_351p1:p.Val2481Ile
NC_000008.10:g.100789121G>A
NM_017890.3:c.7441G>A
NM_017890.4:c.7441G>A
Q7Z7G8:p.Val2481Ile

Protein change:

V2456I

Links:

UniProtKB: Q7Z7G8#VAR_069429; dbSNP: rs201963516

NCBI 1000 Genomes Browser:

rs201963516

Molecular consequence:

NM_017890.5:c.7441G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_152564.5:c.7366G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Cohen syndrome (COH1)
Synonyms:: PEPPER SYNDROME; Cutis verticis gyrata, retinitis pigmentosa, and sensorineural deafness
Identifiers:: MONDO: MONDO:0008999; MedGen: C0265223; Orphanet: 193; OMIM: 216550

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000220170	Counsyl	criteria provided, single submitter (Counsyl Autosomal and X-linked Recessive Disease Classification criteria (2015))	Likely benign (Mar 14, 2014)	unknown	literature only	PubMed (1) [See all records that cite this PMID] Counsyl Autosomal and X-linked Recessive Disease Classification criteria (2015), Citation Link,
SCV000470823	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Uncertain significance (Jan 13, 2018)	germline	clinical testing	Citation Link,
SCV000821255	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Likely benign (Nov 27, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001137685	Mendelics	criteria provided, single submitter (Mendelics Assertion Criteria 2017)	Benign (May 28, 2019)	unknown	clinical testing	Citation Link,
SCV005667393	Fulgent Genetics, Fulgent Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (May 28, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Help

Summary from all submissions

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

Citations

PubMed

Diagnostic exome sequencing in persons with severe intellectual disability.

de Ligt J, Willemsen MH, van Bon BW, Kleefstra T, Yntema HG, Kroes T, Vulto-van Silfhout AT, Koolen DA, de Vries P, Gilissen C, del Rosario M, Hoischen A, Scheffer H, de Vries BB, Brunner HG, Veltman JA, Vissers LE.

N Engl J Med. 2012 Nov 15;367(20):1921-9. doi: 10.1056/NEJMoa1206524. Epub 2012 Oct 3.

PubMed [citation]

PMID:: 23033978

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group, Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9..

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

See all PubMed Citations (3)

Details of each submission

From Counsyl, SCV000220170.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	literature only	PubMed (1)

#	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

From Illumina Laboratory Services, Illumina, SCV000470823.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.

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

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000821255.5

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

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

From Mendelics, SCV001137685.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	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

From Fulgent Genetics, Fulgent Genetics, SCV005667393.1

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

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

Last Updated: Jun 8, 2025

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