dbSNP rs373880950: ANO1:p.Ala106Glu (chr11-70087960-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018043.7(ANO1):c.317C>A(p.Ala106Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000126 in 1,589,436 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A106V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

ANO1
NM_018043.7 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.143

Variant links:

Genes affected

ANO1 (HGNC:21625): (anoctamin 1) Enables calcium activated cation channel activity; intracellular calcium activated chloride channel activity; and iodide transmembrane transporter activity. Involved in cation transport; inorganic anion transport; and positive regulation of insulin secretion involved in cellular response to glucose stimulus. Located in apical plasma membrane and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ANO1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06940612).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANO1	NM_018043.7 link	c.317C>A	p.Ala106Glu	missense_variant	Exon 2 of 26	ENST00000355303.10	NP_060513.5	Q5XXA6-1Q9NW72

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANO1	ENST00000355303.10 link	c.317C>A	p.Ala106Glu	missense_variant	Exon 2 of 26	1	NM_018043.7	ENSP00000347454.5		Q5XXA6-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152048

Hom.:

Cov.:

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:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000462

AC:

AN:

216564

AF XY:

0.00000845

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000625

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.96e-7

AC:

AN:

1437270

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

711860

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33032

American (AMR)

AF:

0.0000237

AC:

AN:

42210

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25496

East Asian (EAS)

AF:

0.00

AC:

AN:

38718

South Asian (SAS)

AF:

0.00

AC:

AN:

82790

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51536

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1098450

Other (OTH)

AF:

0.00

AC:

AN:

59334

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74394

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41536

American (AMR)

AF:

0.00

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5134

South Asian (SAS)

AF:

0.000208

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67978

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ExAC

AF:

0.00000830

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.45

CADD

Benign

0.020

(source)

DANN

Benign

0.51

DEOGEN2

Benign

0.091

T;.;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.089

LIST_S2

Benign

0.79

T;T;T

M_CAP

Benign

0.052

MetaRNN

Benign

0.069

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;.;.

PhyloP100

-0.14

PrimateAI

Benign

0.43

PROVEAN

Benign

0.56

N;N;N

REVEL

Benign

0.052

Sift

Benign

0.38

T;T;T

Sift4G

Benign

0.88

T;T;T

Polyphen

0.0

B;.;B

Vest4

0.15

MutPred

0.27

Gain of solvent accessibility (P = 0.0202);Gain of solvent accessibility (P = 0.0202);.;

MVP

0.54

MPC

0.52

ClinPred

0.020

GERP RS

0.084

Varity_R

0.046

gMVP

0.26

Mutation Taster

=289/11

polymorphism

(source)

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

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rs373880950

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over