chr12-123727809-G-A

Position:

• chr12-123727809-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_012463.4(ATP6V0A2):​c.548G>A​(p.Gly183Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ATP6V0A2 NM_012463.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.31

Genes affected

ATP6V0A2 (HGNC:18481): (ATPase H+ transporting V0 subunit a2) The protein encoded by this gene is a subunit of the vacuolar ATPase (v-ATPase), an heteromultimeric enzyme that is present in intracellular vesicles and in the plasma membrane of specialized cells, and which is essential for the acidification of diverse cellular components. V-ATPase is comprised of a membrane peripheral V(1) domain for ATP hydrolysis, and an integral membrane V(0) domain for proton translocation. The subunit encoded by this gene is a component of the V(0) domain. Mutations in this gene are a cause of both cutis laxa type II and wrinkly skin syndrome. [provided by RefSeq, Jul 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17091179).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP6V0A2	NM_012463.4	c.548G>A	p.Gly183Glu	missense_variant	6/20	ENST00000330342.8
ATP6V0A2	XM_024448910.2	c.548G>A	p.Gly183Glu	missense_variant	6/19
ATP6V0A2	XM_024448911.2	c.35G>A	p.Gly12Glu	missense_variant	2/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP6V0A2	ENST00000330342.8	c.548G>A	p.Gly183Glu	missense_variant	6/20	1	NM_012463.4	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Dec 03, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Uncertain	0.016	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	22
DANN	Benign	0.53
DEOGEN2	Benign	0.16	T;.;T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.93	D;D;D
M_CAP	Benign	0.038	D
MetaRNN	Benign	0.17	T;T;T
MetaSVM	Benign	-0.57	T
MutationAssessor	Benign	-1.2	N;.;.
MutationTaster	Benign	0.98	D
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	1.9	N;.;N
REVEL	Uncertain	0.36
Sift	Benign	1.0	T;.;T
Sift4G	Benign	1.0	T;T;T
Polyphen		0.0020	B;P;.
Vest4		0.33
MutPred		0.49		Gain of catalytic residue at L179 (P = 9e-04);Gain of catalytic residue at L179 (P = 9e-04);.;
MVP		0.49
MPC		0.65
ClinPred		0.84	D
GERP RS		5.0
Varity_R		0.13
gMVP		0.35

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

Other links and lift over

dbSNP: rs1555296748; hg19: chr12-124212356;