rs7969347

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 3P and 5B. PM1PP2BS1_SupportingBS2

The NM_001286615.2(ANO4):c.862A>G(p.Asn288Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,918 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

ANO4
NM_001286615.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.88

Publications

0 publications found

Variant links:

Genes affected

ANO4 (HGNC:23837): (anoctamin 4) Enables intracellular calcium activated chloride channel activity. Involved in chloride transport. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ANO4 Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

ANO4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity ANO4_HUMAN

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 7 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 2.5332 (below the threshold of 3.09). Trascript score misZ: 3.1552 (above the threshold of 3.09). GenCC associations: The gene is linked to complex neurodevelopmental disorder.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000145 (22/152178) while in subpopulation AFR AF = 0.000531 (22/41454). AF 95% confidence interval is 0.000359. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 22 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANO4	NM_001286615.2 link	c.862A>G	p.Asn288Asp	missense_variant	Exon 10 of 28	ENST00000392977.8	NP_001273544.1	Q32M45-1B7Z9Z0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ANO4	ENST00000392977.8 link	c.862A>G	p.Asn288Asp	missense_variant	Exon 10 of 28	2	NM_001286615.2	ENSP00000376703.3	Q32M45-1
ANO4	ENST00000644049.1 link	c.1360A>G	p.Asn454Asp	missense_variant	Exon 12 of 30			ENSP00000494481.1	A0A2R8Y532
ANO4	ENST00000392979.7 link	c.757A>G	p.Asn253Asp	missense_variant	Exon 9 of 27	2		ENSP00000376705.3	Q32M45-2
ANO4	ENST00000549234.1 link	n.332A>G		non_coding_transcript_exon_variant	Exon 4 of 6	4

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000199

AC:

AN:

251356

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1461740

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727164

show subpopulations

African (AFR)

AF:

0.000388

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111916

Other (OTH)

AF:

0.0000331

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.432

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000145

AC:

AN:

152178

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.000531

AC:

AN:

41454

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.536

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000394

Hom.:

Bravo

AF:

0.000223

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 27, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.757A>G (p.N253D) alteration is located in exon 9 (coding exon 8) of the ANO4 gene. This alteration results from a A to G substitution at nucleotide position 757, causing the asparagine (N) at amino acid position 253 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.34

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.074

.;.;T

Eigen

Uncertain

0.65

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Benign

0.038

MetaRNN

Uncertain

0.45

T;T;T

MetaSVM

Benign

-0.50

MutationAssessor

Benign

1.4

.;.;L

PhyloP100

8.9

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-2.7

.;D;D

REVEL

Uncertain

0.30

Sift

Benign

0.10

.;T;T

Sift4G

Benign

0.27

.;T;T

Polyphen

1.0

.;D;D

Vest4

0.65, 0.67

MVP

0.17

MPC

1.5

ClinPred

0.66

GERP RS

5.6

Varity_R

0.50

gMVP

0.61

Mutation Taster

=43/57

disease causing

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs7969347

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over