chr8-99274325-A-T

Position:

chr8-99274325-A-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_152564.5(VPS13B):c.2643A>T(p.Lys881Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000421 in 1,614,100 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0022 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

VPS13B
NM_152564.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.56

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 links:

VPS13B (HGNC:):

VPS13B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011182785).

BP6

Variant 8-99274325-A-T is Benign according to our data. Variant chr8-99274325-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 288192.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=2, Benign=2}.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VPS13B	NM_017890.5 linkuse as main transcript	c.2643A>T	p.Lys881Asn	missense_variant	18/62	ENST00000358544.7	NP_060360.3	Q7Z7G8-1
VPS13B	NM_152564.5 linkuse as main transcript	c.2643A>T	p.Lys881Asn	missense_variant	18/62	ENST00000357162.7	NP_689777.3	Q7Z7G8-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VPS13B	ENST00000358544.7 linkuse as main transcript	c.2643A>T	p.Lys881Asn	missense_variant	18/62	1	NM_017890.5	ENSP00000351346.2		Q7Z7G8-1
VPS13B	ENST00000357162.7 linkuse as main transcript	c.2643A>T	p.Lys881Asn	missense_variant	18/62	1	NM_152564.5	ENSP00000349685.2		Q7Z7G8-2

Frequencies

GnomAD3 genomes

AF:

0.00220

AC:

334

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00787

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000541

AC:

136

AN:

251474

Hom.:

AF XY:

0.000324

AC XY:

AN XY:

135912

show subpopulations

Gnomad AFR exome

AF:

0.00732

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000235

AC:

343

AN:

1461830

Hom.:

Cov.:

AF XY:

0.000221

AC XY:

161

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.00884

Gnomad4 AMR exome

AF:

0.000380

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000381

GnomAD4 genome

AF:

0.00221

AC:

337

AN:

152270

Hom.:

Cov.:

AF XY:

0.00240

AC XY:

179

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00792

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000272

Hom.:

Bravo

AF:

0.00234

ESP6500AA

AF:

0.00794

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000618

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cohen syndrome

Uncertain:1Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Oct 29, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Uncertain significance, criteria provided, single submitter	clinical testing	Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago	Mar 30, 2021	VPS13B NM_017890.4 exon 18 p.Lys881Asn (c.2643A>T): This variant has not been reported in the literature but is present in 0.8% (202/24970) of African alleles, including 1 homozygote in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/8-100286553-A-T). This variant is present in ClinVar (Variation ID:288192). Evolutionary conservation suggests that this variant may impact the protein; computational predictive tools for this variant are unclear. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

not specified

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Apr 25, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jun 21, 2016	- -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 07, 2018

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Sep 01, 2024

VPS13B: BS2 -

VPS13B-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 20, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.82

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.21

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.072

.;T

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.43

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.89

D;D

M_CAP

Benign

0.034

MetaRNN

Benign

0.011

T;T

MetaSVM

Benign

-0.79

MutationAssessor

Benign

1.9

M;M

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-0.87

N;N

REVEL

Benign

0.18

Sift

Benign

0.12

T;T

Sift4G

Uncertain

0.032

D;D

Polyphen

0.96

D;P

Vest4

0.68

MutPred

0.37

Loss of ubiquitination at K881 (P = 0.0141);Loss of ubiquitination at K881 (P = 0.0141);

MVP

0.75

MPC

0.49

ClinPred

0.022

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.30

gMVP

0.57

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over