Variant chrX-151397319-C-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001017980.4(VMA21):c.11C>G(p.Pro4Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000181 in 1,160,850 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P4L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.000017 ( 0 hom. 7 hem. )

Consequence

VMA21
NM_001017980.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.11

Variant links:

Genes affected

VMA21 (HGNC:22082): (vacuolar ATPase assembly factor VMA21) This gene encodes a chaperone for assembly of lysosomal vacuolar ATPase.[provided by RefSeq, Jul 2012]

VMA21 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=0.034464747).

BS2

High Hemizygotes in GnomAdExome4 at 7 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VMA21	NM_001017980.4 linkuse as main transcript	c.11C>G	p.Pro4Arg	missense_variant	1/3	ENST00000330374.7
VMA21	NM_001363810.1 linkuse as main transcript	c.218+262C>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VMA21	ENST00000330374.7 linkuse as main transcript	c.11C>G	p.Pro4Arg	missense_variant	1/3	1	NM_001017980.4	P1	Q3ZAQ7-1
VMA21	ENST00000370361.5 linkuse as main transcript	c.218+262C>G		intron_variant		5			Q3ZAQ7-2
VMA21	ENST00000477649.1 linkuse as main transcript	n.133+672C>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000265

AC:

AN:

113186

Hom.:

Cov.:

AF XY:

0.0000283

AC XY:

AN XY:

35332

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000563

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000996

AC:

AN:

100407

Hom.:

AF XY:

0.0000282

AC XY:

AN XY:

35467

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000128

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000172

AC:

AN:

1047664

Hom.:

Cov.:

AF XY:

0.0000205

AC XY:

AN XY:

342078

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000208

Gnomad4 OTH exome

AF:

0.0000226

GnomAD4 genome

AF:

0.0000265

AC:

AN:

113186

Hom.:

Cov.:

AF XY:

0.0000283

AC XY:

AN XY:

35332

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000563

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

X-linked myopathy with excessive autophagy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 23, 2022

This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 4 of the VMA21 protein (p.Pro4Arg). 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 are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available"). This variant has not been reported in the literature in individuals affected with VMA21-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

DANN

Benign

0.64

DEOGEN2

Benign

0.0010

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.67

M_CAP

Benign

0.0080

MetaRNN

Benign

0.034

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

N;N

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.27

REVEL

Benign

0.042

Sift

Benign

0.35

Sift4G

Benign

0.64

Polyphen

0.031

Vest4

0.13

MutPred

0.18

Loss of loop (P = 0.0075);

MVP

0.043

MPC

0.85

ClinPred

0.022

GERP RS

4.0

Varity_R

0.035

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