chr8-99481798-C-G

Position:

chr8-99481798-C-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_017890.5(VPS13B):c.3866C>G(p.Thr1289Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000296 in 1,613,712 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 0.0016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 2 hom. )

Consequence

VPS13B
NM_017890.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:5

Conservation

PhyloP100: 7.26

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0089990795).

BS2

High Homozygotes in GnomAdExome4 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.3866C>G	p.Thr1289Ser	missense_variant	25/62	ENST00000358544.7	NP_060360.3
VPS13B	NM_152564.5 linkuse as main transcript	c.3866C>G	p.Thr1289Ser	missense_variant	25/62	ENST00000357162.7	NP_689777.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VPS13B	ENST00000358544.7 linkuse as main transcript	c.3866C>G	p.Thr1289Ser	missense_variant	25/62	1	NM_017890.5	ENSP00000351346		Q7Z7G8-1
VPS13B	ENST00000357162.7 linkuse as main transcript	c.3866C>G	p.Thr1289Ser	missense_variant	25/62	1	NM_152564.5	ENSP00000349685	P1	Q7Z7G8-2

Frequencies

GnomAD3 genomes

AF:

0.00159

AC:

242

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00543

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

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:

0.0000441

Gnomad OTH

AF:

0.00240

GnomAD3 exomes

AF:

0.000399

AC:

100

AN:

250792

Hom.:

AF XY:

0.000406

AC XY:

AN XY:

135514

show subpopulations

Gnomad AFR exome

AF:

0.00554

Gnomad AMR exome

AF:

0.000203

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000161

AC:

236

AN:

1461476

Hom.:

Cov.:

AF XY:

0.000176

AC XY:

128

AN XY:

727040

show subpopulations

Gnomad4 AFR exome

AF:

0.00541

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.000398

GnomAD4 genome

AF:

0.00159

AC:

242

AN:

152236

Hom.:

Cov.:

AF XY:

0.00160

AC XY:

119

AN XY:

74432

show subpopulations

Gnomad4 AFR

AF:

0.00542

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.000237

Hom.:

Bravo

AF:

0.00181

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00431

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000502

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cohen syndrome

Uncertain:2Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Likely benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Benign, criteria provided, single submitter	clinical testing	Mendelics	Aug 22, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago	Sep 17, 2021	VPS13B NM_017890.4 exon 25 p.Thr1289Ser (c.3866C>G): This variant has been reported in the literature as a compound heterozygote (in trans with a multi-exon deletion of this gene) in 1 individual with a diagnosis of Cohen syndrome (Rivera-Brugues 2011 PMID:20921020, gene identified as alternate name COH1). However, this variant is present in 0.5% (125/24018) of African alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/rs145569846). This variant is present in ClinVar (Variation ID:95851). Evolutionary conservation and computational predictive tools suggest that this variant may impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -
Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Aug 06, 2019	- -

not provided

Uncertain:3Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Oct 04, 2013	- -
Uncertain significance, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Uncertain significance, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 14, 2020	This variant is associated with the following publications: (PMID: 20921020) -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 26, 2018

This alteration is classified as likely 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.085

.;T

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.052

MetaRNN

Benign

0.0090

T;T

MetaSVM

Benign

-0.32

MutationAssessor

Benign

2.0

M;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.83

N;N

REVEL

Benign

0.25

Sift

Benign

0.42

T;T

Sift4G

Benign

0.34

T;T

Polyphen

1.0

D;D

Vest4

0.57

MutPred

0.10

Loss of glycosylation at T1289 (P = 0.0565);Loss of glycosylation at T1289 (P = 0.0565);

MVP

0.81

MPC

0.52

ClinPred

0.034

GERP RS

5.1

Varity_R

0.19

gMVP

0.30

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