rs773242093

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_017890.5(VPS13B):​c.7744G>A​(p.Asp2582Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000224 in 1,613,790 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D2582E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00029 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

VPS13B
NM_017890.5 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:2

Conservation

PhyloP100: 0.618

Publications

0 publications found
Variant links:
Genes affected
VPS13B (HGNC:2183): (vacuolar protein sorting 13 homolog B) This gene encodes a potential transmembrane protein that may function in vesicle-mediated transport and sorting of proteins within the cell. This protein may play a role in the development and the function of the eye, hematological system, and central nervous system. Mutations in this gene have been associated with Cohen syndrome. Multiple splice variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]
VPS13B Gene-Disease associations (from GenCC):
  • Cohen syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Laboratory for Molecular Medicine, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.025090009).
BP6
Variant 8-99778921-G-A is Benign according to our data. Variant chr8-99778921-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 585720.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VPS13BNM_017890.5 linkc.7744G>A p.Asp2582Asn missense_variant Exon 42 of 62 ENST00000358544.7 NP_060360.3 Q7Z7G8-1
VPS13BNM_152564.5 linkc.7669G>A p.Asp2557Asn missense_variant Exon 42 of 62 ENST00000357162.7 NP_689777.3 Q7Z7G8-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VPS13BENST00000358544.7 linkc.7744G>A p.Asp2582Asn missense_variant Exon 42 of 62 1 NM_017890.5 ENSP00000351346.2 Q7Z7G8-1
VPS13BENST00000357162.7 linkc.7669G>A p.Asp2557Asn missense_variant Exon 42 of 62 1 NM_152564.5 ENSP00000349685.2 Q7Z7G8-2

Frequencies

GnomAD3 genomes
AF:
0.000289
AC:
44
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000187
AC:
47
AN:
250946
AF XY:
0.000170
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000261
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.000462
Gnomad NFE exome
AF:
0.000194
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000218
AC:
318
AN:
1461664
Hom.:
0
Cov.:
31
AF XY:
0.000205
AC XY:
149
AN XY:
727138
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33462
American (AMR)
AF:
0.000358
AC:
16
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.000832
AC:
33
AN:
39676
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86252
European-Finnish (FIN)
AF:
0.000374
AC:
20
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.000209
AC:
232
AN:
1111880
Other (OTH)
AF:
0.000199
AC:
12
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
20
41
61
82
102
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000289
AC:
44
AN:
152126
Hom.:
0
Cov.:
32
AF XY:
0.000256
AC XY:
19
AN XY:
74320
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41434
American (AMR)
AF:
0.000720
AC:
11
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000382
AC:
26
AN:
68024
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000320
Hom.:
0
Bravo
AF:
0.000261
ExAC
AF:
0.0000906
AC:
11
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Cohen syndrome Uncertain:3Benign:1
Jan 29, 2018
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Nov 11, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 01, 2019
Institute of Human Genetics, University of Leipzig Medical Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:2
Aug 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

VPS13B: PM2:Supporting, BP4 -

Jun 05, 2018
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Feb 14, 2018
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.D2582N variant (also known as c.7744G>A), located in coding exon 41 of the VPS13B gene, results from a G to A substitution at nucleotide position 7744. The aspartic acid at codon 2582 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is not conserved however, asparagine is a reference amino acid in several species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

VPS13B-related disorder Uncertain:1
Jul 05, 2024
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

The VPS13B c.7669G>A variant is predicted to result in the amino acid substitution p.Asp2557Asn. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.040% of alleles in individuals of European (Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

not specified Benign:1
Feb 16, 2025
Laboratory of Genetics, Children's Clinical University Hospital Latvia
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
1.2
DANN
Benign
0.95
DEOGEN2
Benign
0.058
.;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.022
N
LIST_S2
Benign
0.70
T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.025
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.0
.;L
PhyloP100
0.62
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.32
N;N
REVEL
Benign
0.058
Sift
Benign
0.69
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0010
B;B
Vest4
0.055
MVP
0.41
MPC
0.33
ClinPred
0.028
T
GERP RS
1.4
Varity_R
0.034
gMVP
0.12
Mutation Taster
=92/8
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs773242093; hg19: chr8-100791149; API