rs373885901

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP2BP4_ModerateBS1_SupportingBS2

The NM_001286615.2(ANO4):​c.169G>A​(p.Asp57Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 1,612,946 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

ANO4
NM_001286615.2 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.74

Publications

3 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

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.
BP4
Computational evidence support a benign effect (MetaRNN=0.23308668).
BS1
Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.0000301 (44/1460812) while in subpopulation AFR AF = 0.0000598 (2/33452). AF 95% confidence interval is 0.0000271. There are 0 homozygotes in GnomAdExome4. There are 25 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAdExome4 at 44 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ANO4NM_001286615.2 linkc.169G>A p.Asp57Asn missense_variant Exon 4 of 28 ENST00000392977.8 NP_001273544.1 Q32M45-1B7Z9Z0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ANO4ENST00000392977.8 linkc.169G>A p.Asp57Asn missense_variant Exon 4 of 28 2 NM_001286615.2 ENSP00000376703.3 Q32M45-1
ANO4ENST00000644049.1 linkc.667G>A p.Asp223Asn missense_variant Exon 6 of 30 ENSP00000494481.1 A0A2R8Y532
ANO4ENST00000392979.7 linkc.64G>A p.Asp22Asn missense_variant Exon 3 of 27 2 ENSP00000376705.3 Q32M45-2
ANO4ENST00000549155.6 linkn.667G>A non_coding_transcript_exon_variant Exon 6 of 11 2 ENSP00000449116.2 F8VW62

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250848
AF XY:
0.00000738
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.000164
GnomAD4 exome
AF:
0.0000301
AC:
44
AN:
1460812
Hom.:
0
Cov.:
30
AF XY:
0.0000344
AC XY:
25
AN XY:
726680
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33452
American (AMR)
AF:
0.00
AC:
0
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26082
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39674
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86132
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53378
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000360
AC:
40
AN:
1111280
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.445
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74322
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000966
Hom.:
0
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Dec 25, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.64G>A (p.D22N) alteration is located in exon 3 (coding exon 2) of the ANO4 gene. This alteration results from a G to A substitution at nucleotide position 64, causing the aspartic acid (D) at amino acid position 22 to be replaced by an asparagine (N). 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
Benign
0.28
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.49
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.058
.;.;T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D;D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
1.6
.;.;L
PhyloP100
7.7
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.54
.;N;N
REVEL
Benign
0.11
Sift
Benign
0.056
.;T;T
Sift4G
Benign
0.32
.;T;T
Polyphen
0.73, 0.99
.;P;D
Vest4
0.74
MVP
0.093
MPC
0.52
ClinPred
0.23
T
GERP RS
5.5
Varity_R
0.22
gMVP
0.48
Mutation Taster
=264/36
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs373885901; hg19: chr12-101333101; COSMIC: COSV54585502; API