rs797045238

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_020987.5(ANK3):​c.8308G>T​(p.Ala2770Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,168 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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. A2770T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

ANK3
NM_020987.5 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.535
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ANK3. . Gene score misZ 2.7937 (greater than the threshold 3.09). Trascript score misZ 5.3471 (greater than threshold 3.09). GenCC has associacion of gene with intellectual disability, Tourette syndrome, intellectual disability-hypotonia-spasticity-sleep disorder syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.062524736).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ANK3NM_020987.5 linkuse as main transcriptc.8308G>T p.Ala2770Ser missense_variant 37/44 ENST00000280772.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ANK3ENST00000280772.7 linkuse as main transcriptc.8308G>T p.Ala2770Ser missense_variant 37/441 NM_020987.5 Q12955-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250034
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135074
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461168
Hom.:
0
Cov.:
36
AF XY:
0.00000275
AC XY:
2
AN XY:
726872
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.24
FATHMM_MKL
Benign
0.69
D
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.0088
T
MetaRNN
Benign
0.063
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.81
L
MutationTaster
Benign
1.0
D;D;D;N
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-0.29
N
REVEL
Benign
0.060
Sift
Benign
0.25
T
Polyphen
0.0
B
Vest4
0.052
MutPred
0.17
Loss of helix (P = 0.028);
MVP
0.28
MPC
0.13
ClinPred
0.099
T
GERP RS
3.9
Varity_R
0.066
gMVP
0.011

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs797045238; hg19: chr10-61832331; API