X-40580909-T-C

Position:

• chrX-40580909-T-C

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_Moderate BP6_Very_Strong BS1 BS2

The ENST00000636409.1(ATP6AP2):​c.-157T>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00288 in 634,424 control chromosomes in the GnomAD database, including 24 homozygotes. There are 465 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.010 (14 hom., 306 hem., cov: 25)
  • Exomes 𝑓: 0.0013 (10 hom. 159 hem.)
• Consequence: ATP6AP2 ENST00000636409.1 5_prime_UTR
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.00500

Genes affected

ATP6AP2 (HGNC:18305): (ATPase H+ transporting accessory protein 2) This gene encodes a protein that is associated with adenosine triphosphatases (ATPases). Proton-translocating ATPases have fundamental roles in energy conservation, secondary active transport, acidification of intracellular compartments, and cellular pH homeostasis. There are three classes of ATPases- F, P, and V. The vacuolar (V-type) ATPases have a transmembrane proton-conducting sector and an extramembrane catalytic sector. The encoded protein has been found associated with the transmembrane sector of the V-type ATPases. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -18 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant X-40580909-T-C is Benign according to our data. Variant chrX-40580909-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 673879.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0101 (1136/112846) while in subpopulation AFR AF= 0.0348 (1083/31117). AF 95% confidence interval is 0.0331. There are 14 homozygotes in gnomad4. There are 306 alleles in male gnomad4 subpopulation. Median coverage is 25. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 14 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP6AP2	ENST00000636409.1	c.-157T>C		5_prime_UTR_variant	1/8	2
ATP6AP2	ENST00000436783.6	c.-111+1162T>C		intron_variant		5
ATP6AP2	ENST00000487051.2	n.10T>C		non_coding_transcript_exon_variant	1/3	2

Frequencies

GnomAD3 genomes AF: 0.0101 AC: 1137 AN: 112797 Hom.: 14 Cov.: 25 AF XY: 0.00875 AC XY: 306 AN XY: 34983

Gnomad AFR AF: 0.0349

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00315

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000356

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000113

Gnomad OTH AF: 0.00787

GnomAD4 exome AF: 0.00132 AC: 691 AN: 521578 Hom.: 10 Cov.: 8 AF XY: 0.000986 AC XY: 159 AN XY: 161302

Gnomad4 AFR exome AF: 0.0350

Gnomad4 AMR exome AF: 0.00316

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: 0.0000261

Gnomad4 OTH exome AF: 0.00315

GnomAD4 genome AF: 0.0101 AC: 1136 AN: 112846 Hom.: 14 Cov.: 25 AF XY: 0.00873 AC XY: 306 AN XY: 35042

Gnomad4 AFR AF: 0.0348

Gnomad4 AMR AF: 0.00315

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000357

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000113

Gnomad4 OTH AF: 0.00778

Alfa AF: 0.00819 Hom.: 24

Bravo AF: 0.0121

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 19, 2018	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	9.1
DANN	Benign	0.85

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: rs183187874; hg19: chrX-40440161;