Genetic Variant VPS13A:p.Gly16Arg (chr9-77177750-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_033305.3(VPS13A):c.46G>A(p.Gly16Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,408 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

VPS13A
NM_033305.3 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 5.19

Publications

0 publications found

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:

VPS13A-AS1 (HGNC:44167): (VPS13A antisense RNA 1)

VPS13A-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.902

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VPS13A	NM_033305.3 link	c.46G>A	p.Gly16Arg	missense_variant	Exon 1 of 72	ENST00000360280.8	NP_150648.2	Q96RL7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VPS13A	ENST00000360280.8 link	c.46G>A	p.Gly16Arg	missense_variant	Exon 1 of 72	1	NM_033305.3	ENSP00000353422.3		Q96RL7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461408

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727052

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33460

American (AMR)

AF:

0.00

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26112

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111702

Other (OTH)

AF:

0.00

AC:

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Chorea-acanthocytosis

Uncertain:1

May 01, 2025

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.93

.;.;D;.;.;.;D

Eigen

Pathogenic

0.77

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Uncertain

0.80

LIST_S2

Pathogenic

0.98

.;D;.;.;D;D;D

M_CAP

Pathogenic

0.81

MetaRNN

Pathogenic

0.90

D;D;D;D;D;D;D

MetaSVM

Uncertain

0.76

MutationAssessor

Pathogenic

3.3

M;M;M;M;M;M;M

PhyloP100

5.2

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-5.6

D;D;D;D;.;.;.

REVEL

Pathogenic

0.77

Sift

Pathogenic

0.0

D;D;D;D;.;.;.

Sift4G

Pathogenic

0.0010

D;D;D;D;.;.;.

Polyphen

1.0

D;D;D;D;D;D;D

Vest4

0.39

MutPred

0.66

Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);Gain of solvent accessibility (P = 0.0584);

MVP

0.92

MPC

4.1

ClinPred

1.0

GERP RS

4.0

PromoterAI

0.036

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.94

gMVP

0.93

Mutation Taster

=16/84

disease causing

(source)

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

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9-77177750-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over