3-43577227-A-G

Position:

• chr3-43577227-A-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_018075.5(ANO10):​c.627T>C​(p.Ala209=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00197 in 1,614,156 control chromosomes in the GnomAD database, including 55 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.011 (28 hom., cov: 32)
  • Exomes 𝑓: 0.0010 (27 hom.)
• Consequence: ANO10 NM_018075.5 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -1.03

Genes affected

ANO10 (HGNC:25519): (anoctamin 10) The transmembrane protein encoded by this gene belongs to the anoctamin family of calcium-activated chloride channels, also known as the transmembrane 16 family. The encoded protein contains eight transmembrane domains with cytosolic N- and C-termini. Defects in this gene may cause autosomal recessive spinocerebellar ataxia-10. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2016]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 3-43577227-A-G is Benign according to our data. Variant chr3-43577227-A-G is described in ClinVar as [Benign]. Clinvar id is 345192.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-1.03 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0111 (1684/152344) while in subpopulation AFR AF= 0.0377 (1568/41574). AF 95% confidence interval is 0.0362. There are 28 homozygotes in gnomad4. There are 755 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 28 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANO10	NM_018075.5	c.627T>C	p.Ala209=	synonymous_variant	6/13	ENST00000292246.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANO10	ENST00000292246.8	c.627T>C	p.Ala209=	synonymous_variant	6/13	1	NM_018075.5	P1

Frequencies

GnomAD3 genomes AF: 0.0110 AC: 1678 AN: 152226 Hom.: 28 Cov.: 32

Gnomad AFR AF: 0.0377

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00563

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: 0.000103

Gnomad OTH AF: 0.0110

GnomAD3 exomes AF: 0.00274 AC: 680 AN: 248368 Hom.: 8 AF XY: 0.00199 AC XY: 269 AN XY: 134972

Gnomad AFR exome AF: 0.0382

Gnomad AMR exome AF: 0.00206

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000805

Gnomad OTH exome AF: 0.00149

GnomAD4 exome AF: 0.00103 AC: 1503 AN: 1461812 Hom.: 27 Cov.: 32 AF XY: 0.000888 AC XY: 646 AN XY: 727212

Gnomad4 AFR exome AF: 0.0368

Gnomad4 AMR exome AF: 0.00230

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: 0.0000279

Gnomad4 OTH exome AF: 0.00214

GnomAD4 genome AF: 0.0111 AC: 1684 AN: 152344 Hom.: 28 Cov.: 32 AF XY: 0.0101 AC XY: 755 AN XY: 74500

Gnomad4 AFR AF: 0.0377

Gnomad4 AMR AF: 0.00562

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.0109

Alfa AF: 0.00510 Hom.: 5

Bravo AF: 0.0133

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Aug 23, 2016

- -

Autosomal recessive spinocerebellar ataxia 10 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	3.6
DANN	Benign	0.55

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: rs61742945; hg19: chr3-43618719;