NM_020987.5:c.13065+20G>A

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020987.5(ANK3):​c.13065+20G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000846 in 1,578,694 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0044 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00047 ( 7 hom. )

Consequence

ANK3
NM_020987.5 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.05

Publications

0 publications found
Variant links:
Genes affected
ANK3 (HGNC:494): (ankyrin 3) Ankyrins are a family of proteins that are believed to link the integral membrane proteins to the underlying spectrin-actin cytoskeleton and play key roles in activities such as cell motility, activation, proliferation, contact, and the maintenance of specialized membrane domains. Multiple isoforms of ankyrin with different affinities for various target proteins are expressed in a tissue-specific, developmentally regulated manner. Most ankyrins are typically composed of three structural domains: an amino-terminal domain containing multiple ankyrin repeats; a central region with a highly conserved spectrin binding domain; and a carboxy-terminal regulatory domain which is the least conserved and subject to variation. Ankyrin 3 is an immunologically distinct gene product from ankyrins 1 and 2, and was originally found at the axonal initial segment and nodes of Ranvier of neurons in the central and peripheral nervous systems. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Feb 2011]
ANK3 Gene-Disease associations (from GenCC):
  • intellectual disability-hypotonia-spasticity-sleep disorder syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
  • intellectual disability
    Inheritance: AR, AD Classification: MODERATE, LIMITED Submitted by: ClinGen, Ambry Genetics
  • Tourette syndrome
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 10-60055638-C-T is Benign according to our data. Variant chr10-60055638-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 446050.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 = 0.00439 (669/152278) while in subpopulation AFR AF = 0.0147 (611/41560). AF 95% confidence interval is 0.0137. There are 2 homozygotes in GnomAd4. There are 303 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR,Unknown,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ANK3NM_020987.5 linkc.13065+20G>A intron_variant Intron 42 of 43 ENST00000280772.7 NP_066267.2 Q12955-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ANK3ENST00000280772.7 linkc.13065+20G>A intron_variant Intron 42 of 43 1 NM_020987.5 ENSP00000280772.1 Q12955-3

Frequencies

GnomAD3 genomes
AF:
0.00440
AC:
670
AN:
152160
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0148
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00255
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00383
GnomAD2 exomes
AF:
0.00121
AC:
270
AN:
223888
AF XY:
0.000876
show subpopulations
Gnomad AFR exome
AF:
0.0158
Gnomad AMR exome
AF:
0.000496
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000573
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000468
AC:
667
AN:
1426416
Hom.:
7
Cov.:
32
AF XY:
0.000414
AC XY:
293
AN XY:
707448
show subpopulations
African (AFR)
AF:
0.0158
AC:
502
AN:
31676
American (AMR)
AF:
0.000695
AC:
26
AN:
37426
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23752
East Asian (EAS)
AF:
0.0000254
AC:
1
AN:
39430
South Asian (SAS)
AF:
0.0000623
AC:
5
AN:
80300
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52288
Middle Eastern (MID)
AF:
0.00143
AC:
7
AN:
4880
European-Non Finnish (NFE)
AF:
0.0000474
AC:
52
AN:
1098038
Other (OTH)
AF:
0.00126
AC:
74
AN:
58626
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
34
68
102
136
170
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00439
AC:
669
AN:
152278
Hom.:
2
Cov.:
33
AF XY:
0.00407
AC XY:
303
AN XY:
74458
show subpopulations
African (AFR)
AF:
0.0147
AC:
611
AN:
41560
American (AMR)
AF:
0.00255
AC:
39
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000147
AC:
10
AN:
68024
Other (OTH)
AF:
0.00379
AC:
8
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
34
68
103
137
171
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00279
Hom.:
0
Bravo
AF:
0.00541
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Aug 24, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.35
DANN
Benign
0.72
PhyloP100
-1.1
PromoterAI
-0.10
Neutral
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs142778119; hg19: chr10-61815396; API