9-77307991-A-T

Position:

chr9-77307991-A-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_033305.3(VPS13A):c.4007A>T(p.His1336Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000326 in 1,602,988 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0018 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 2 hom. )

Consequence

VPS13A
NM_033305.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 3.09

Variant links:

Genes affected

VPS13A (HGNC:1908): (vacuolar protein sorting 13 homolog A) The protein encoded by this gene may control steps in the cycling of proteins through the trans-Golgi network to endosomes, lysosomes and the plasma membrane. Mutations in this gene cause the autosomal recessive disorder, chorea-acanthocytosis. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

VPS13A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0053789914).

BP6

Variant 9-77307991-A-T is Benign according to our data. Variant chr9-77307991-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 448861.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00178 (271/152250) while in subpopulation AFR AF= 0.00628 (261/41546). AF 95% confidence interval is 0.00566. There are 2 homozygotes in gnomad4. There are 134 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
VPS13A	NM_033305.3 linkuse as main transcript	c.4007A>T	p.His1336Leu	missense_variant	35/72	ENST00000360280.8
VPS13A	NM_001018037.2 linkuse as main transcript	c.3890A>T	p.His1297Leu	missense_variant	34/71
VPS13A	NM_015186.4 linkuse as main transcript	c.4007A>T	p.His1336Leu	missense_variant	35/69
VPS13A	NM_001018038.3 linkuse as main transcript	c.4007A>T	p.His1336Leu	missense_variant	35/69

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VPS13A	ENST00000360280.8 linkuse as main transcript	c.4007A>T	p.His1336Leu	missense_variant	35/72	1	NM_033305.3	P4	Q96RL7-1

Frequencies

GnomAD3 genomes

AF:

0.00178

AC:

271

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00630

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000502

AC:

126

AN:

250952

Hom.:

AF XY:

0.000339

AC XY:

AN XY:

135620

show subpopulations

Gnomad AFR exome

AF:

0.00739

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000174

AC:

252

AN:

1450738

Hom.:

Cov.:

AF XY:

0.000166

AC XY:

120

AN XY:

722484

show subpopulations

Gnomad4 AFR exome

AF:

0.00646

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000363

Gnomad4 OTH exome

AF:

0.000367

GnomAD4 genome

AF:

0.00178

AC:

271

AN:

152250

Hom.:

Cov.:

AF XY:

0.00180

AC XY:

134

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.00628

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.0000901

Hom.:

Bravo

AF:

0.00199

ESP6500AA

AF:

0.00567

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000560

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 28, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Jul 26, 2023	- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 01, 2022

This alteration is classified as likely benign based on a combination of the following: 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. -

Chorea-acanthocytosis

Benign:1

Benign, no assertion criteria provided

clinical testing

Natera, Inc.

Nov 11, 2019

- -

VPS13A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 30, 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

Benign

0.10

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.25

.;.;T;.;.;.;T

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.096

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.81

.;T;.;.;T;T;T

M_CAP

Benign

0.0081

MetaRNN

Benign

0.0054

T;T;T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.0

N;.;N;N;N;N;N

MutationTaster

Benign

0.68

D;D;D;D

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.72

N;N;N;N;.;.;.

REVEL

Benign

0.052

Sift

Benign

0.66

T;T;T;T;.;.;.

Sift4G

Benign

0.66

T;T;T;T;.;.;.

Polyphen

0.054

B;B;B;B;B;B;B

Vest4

0.37

MVP

0.44

MPC

0.16

ClinPred

0.025

GERP RS

4.6

Varity_R

0.11

gMVP

0.44

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