Genetic Variant NM_001363810.1:c.180G>A (chrX-151397019-G-A) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP7BS2

The NM_001363810.1(VMA21):c.180G>A(p.Arg60Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000237 in 506,282 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 7 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 2 hem., cov: 21)

Exomes 𝑓: 0.000023 ( 0 hom. 5 hem. )

Consequence

VMA21
NM_001363810.1 synonymous

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.842

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:

ENSG00000287918 (HGNC:):

ENSG00000287918 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.77).

BP7

Synonymous conserved (PhyloP=-0.842 with no splicing effect.

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VMA21	NM_001363810.1 link	c.180G>A	p.Arg60Arg	synonymous_variant	Exon 1 of 3		NP_001350739.1
VMA21	NM_001017980.4 link	c.-290G>A		upstream_gene_variant		ENST00000330374.7	NP_001017980.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VMA21	ENST00000330374.7 link	c.-290G>A		upstream_gene_variant		1	NM_001017980.4	ENSP00000333255.6		Q3ZAQ7-1

Frequencies

GnomAD3 genomes

AF:

0.0000270

AC:

AN:

111309

Hom.:

Cov.:

AF XY:

0.0000595

AC XY:

AN XY:

33599

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000935

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:

0.0000379

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000335

AC:

AN:

89658

Hom.:

AF XY:

0.0000335

AC XY:

AN XY:

29846

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000563

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000153

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000228

AC:

AN:

394973

Hom.:

Cov.:

AF XY:

0.0000357

AC XY:

AN XY:

140155

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:

0.0000812

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000220

Gnomad4 OTH exome

AF:

0.0000445

GnomAD4 genome

AF:

0.0000270

AC:

AN:

111309

Hom.:

Cov.:

AF XY:

0.0000595

AC XY:

AN XY:

33599

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000935

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000379

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 04, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: VMA21 c.-290G>A is located in the untranscribed region upstream of the VMA21 gene region. The variant was detected at a frequency of 4.5e-05 in 110157 control chromosomes, including 3 hemizygotes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.-290G>A in individuals affected with X-Linked Myopathy With Excessive Autophagy and no experimental evidence demonstrating its impact on protein function have been reported. No submitters have cited clinical-significance assessments for this variant to ClinVar. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

1.8

DANN

Benign

0.81

Splicing

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