10-60055686-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_020987.5(ANK3):c.13037A>G(p.Glu4346Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ANK3 NM_020987.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.51

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]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, ANK3
• BP4: Computational evidence support a benign effect (MetaRNN=0.39061472).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANK3	NM_020987.5	c.13037A>G	p.Glu4346Gly	missense_variant	42/44	ENST00000280772.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANK3	ENST00000280772.7	c.13037A>G	p.Glu4346Gly	missense_variant	42/44	1	NM_020987.5
	ENST00000619719.1	n.63-3648T>C		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 10, 2022

The c.13037A>G (p.E4346G) alteration is located in exon 42 (coding exon 42) of the ANK3 gene. This alteration results from a A to G substitution at nucleotide position 13037, causing the glutamic acid (E) at amino acid position 4346 to be replaced by a glycine (G). 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	0.13
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.030
Cadd	Pathogenic	26
Dann	Pathogenic	1.0
DEOGEN2	Benign	0.26	T;.;.;.;.;.
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D;D;D;D;D;D
M_CAP	Benign	0.057	D
MetaRNN	Benign	0.39	T;T;T;T;T;T
MetaSVM	Uncertain	0.31	D
MutationAssessor	Benign	1.0	L;.;.;.;.;.
MutationTaster	Benign	0.95	D;N;N;N
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-1.4	N;N;D;D;N;N
REVEL	Uncertain	0.41
Sift	Pathogenic	0.0	D;D;D;D;D;D
Polyphen		1.0	D;.;.;.;.;.
Vest4		0.39
MutPred		0.30		Gain of sheet (P = 0.0344);.;.;.;.;.;
MVP		0.73
MPC		0.19
ClinPred		0.83	D
GERP RS		6.0
Varity_R		0.20
gMVP		0.12

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-61815444;