rs797045230

Positions:

• chr10-60069198-A-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2 PP2 BP4_Strong

The NM_020987.5(ANK3):​c.11683T>C​(p.Ser3895Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000052 in 1,613,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S3895S) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000055 (0 hom.)
• Consequence: ANK3 NM_020987.5 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 1.90

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]

ACMG classification

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=0.042916656).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANK3	NM_020987.5	c.11683T>C	p.Ser3895Pro	missense_variant	37/44	ENST00000280772.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANK3	ENST00000280772.7	c.11683T>C	p.Ser3895Pro	missense_variant	37/44	1	NM_020987.5

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152158 Hom.: 0 Cov.: 32

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: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000547 AC: 80 AN: 1461822 Hom.: 0 Cov.: 33 AF XY: 0.0000399 AC XY: 29 AN XY: 727210

Gnomad4 AFR exome AF: 0.0000598

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: 0.0000701

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152158 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74334

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000329 Hom.: 0

Bravo AF: 0.0000264

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Mar 02, 2015

- -

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2023

The c.11683T>C (p.S3895P) alteration is located in exon 37 (coding exon 37) of the ANK3 gene. This alteration results from a T to C substitution at nucleotide position 11683, causing the serine (S) at amino acid position 3895 to be replaced by a proline (P). 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	0.065
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	5.3
DANN	Benign	0.23
DEOGEN2	Benign	0.24	T
Eigen	Benign	-0.94
Eigen_PC	Benign	-0.87
FATHMM_MKL	Benign	0.062	N
LIST_S2	Benign	0.52	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.043	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.29	N
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.35	T
PROVEAN	Benign	0.14	N
REVEL	Benign	0.061
Sift	Benign	0.48	T
Polyphen		0.0	B
Vest4		0.061
MutPred		0.14		Loss of phosphorylation at S3895 (P = 0.0339);
MVP		0.21
MPC		0.18
ClinPred		0.067	T
GERP RS		2.6
Varity_R		0.086
gMVP		0.042

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

Other links and lift over

dbSNP: rs797045230; hg19: chr10-61828956;