Variant 16-70687948-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_018052.5(VAC14):c.2329G>A(p.Asp777Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000141 in 1,419,414 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

VAC14
NM_018052.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.41

Variant links:

Genes affected

VAC14 (HGNC:25507): (VAC14 component of PIKFYVE complex) This gene encodes a scaffold protein that is a component of the PIKfyve protein kinase complex. This complex is responsible for the synthesis of phosphatidylinositol 3,5-bisphosphate, an important component of cellular membranes, from phosphatidylinositol 3-phosphate. Mice lacking a functional copy of this gene exhibit severe neurodegeneration. Mutations in the human gene have been identified in patients with a childhood onset progressive neurological disorder characterized by impaired movement, dystonia, and striatal abnormalities. [provided by RefSeq, May 2017]

VAC14 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a mutagenesis_site Abolishes interaction with NOS1. (size 0) in uniprot entity VAC14_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16424146).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
VAC14	NM_018052.5 linkuse as main transcript	c.2329G>A	p.Asp777Asn	missense_variant	19/19	ENST00000261776.10	NP_060522.3
VAC14	NM_001351157.2 linkuse as main transcript	c.1627G>A	p.Asp543Asn	missense_variant	18/18		NP_001338086.1
VAC14	XM_005256038.5 linkuse as main transcript	c.*3915G>A		3_prime_UTR_variant	19/19		XP_005256095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VAC14	ENST00000261776.10 linkuse as main transcript	c.2329G>A	p.Asp777Asn	missense_variant	19/19	1	NM_018052.5	ENSP00000261776	P1	Q08AM6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000881

AC:

AN:

226982

Hom.:

AF XY:

0.00

AC XY:

AN XY:

123210

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000758

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000141

AC:

AN:

1419414

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

702104

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000246

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 03, 2021

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with VAC14-related conditions. This variant is present in population databases (rs769536879, ExAC 0.03%). This sequence change replaces aspartic acid with asparagine at codon 777 of the VAC14 protein (p.Asp777Asn). The aspartic acid residue is moderately conserved and there is a small physicochemical difference between aspartic acid and asparagine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.49

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;.

Eigen

Benign

0.039

Eigen_PC

Benign

0.21

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-0.88

MutationAssessor

Benign

0.69

N;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.78

N;N

REVEL

Benign

0.085

Sift

Benign

0.063

T;T

Sift4G

Benign

0.17

T;T

Polyphen

0.048

B;.

Vest4

0.32

MutPred

0.33

Gain of methylation at R772 (P = 0.0873);.;

MVP

0.12

MPC

0.56

ClinPred

0.54

GERP RS

5.4

Varity_R

0.23

gMVP

0.26

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