chr10-60073209-G-A

Variant names:

• chr10-60073209-G-A
• rs375600068
• NM_020987.5:c.7672C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_Moderate BS1_Supporting

The NM_020987.5(ANK3):​c.7672C>T​(p.Arg2558Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000143 in 1,614,036 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2558H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000079 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00015 (1 hom.)
• Consequence: ANK3 NM_020987.5 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:4
• Conservation: PhyloP100: 8.12
• Publications: 4 publications found

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)

ENSG00000232682 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.20382154).
• BS1: Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000789 (12/152186) while in subpopulation SAS AF = 0.000415 (2/4824). AF 95% confidence interval is 0.000073. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020987.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANK3	NM_020987.5	MANE Select	c.7672C>T	p.Arg2558Cys	missense	Exon 37 of 44	NP_066267.2
	ANK3	NM_001204404.2		c.4409-5200C>T		intron	N/A	NP_001191333.1
	ANK3	NM_001320874.2		c.4406-5200C>T		intron	N/A	NP_001307803.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANK3	ENST00000280772.7	TSL:1 MANE Select	c.7672C>T	p.Arg2558Cys	missense	Exon 37 of 44	ENSP00000280772.1
	ANK3	ENST00000373827.6	TSL:1	c.4388-5200C>T		intron	N/A	ENSP00000362933.2
	ANK3	ENST00000355288.6	TSL:1	c.1808-5200C>T		intron	N/A	ENSP00000347436.2

Frequencies

GnomAD3 genomes AF: 0.0000789 AC: 12 AN: 152068 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000104 AC: 26 AN: 250970 AF XY: 0.000133

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000618

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000150 AC: 219 AN: 1461850 Hom.: 1 Cov.: 36 AF XY: 0.000155 AC XY: 113 AN XY: 727222

African (AFR) AF: 0.0000299 AC: 1 AN: 33478

American (AMR) AF: 0.0000224 AC: 1 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.0000756 AC: 3 AN: 39696

South Asian (SAS) AF: 0.000614 AC: 53 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.000133 AC: 148 AN: 1111998

Other (OTH) AF: 0.000215 AC: 13 AN: 60396

GnomAD4 genome AF: 0.0000789 AC: 12 AN: 152186 Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6 AN XY: 74392

African (AFR) AF: 0.0000241 AC: 1 AN: 41500

American (AMR) AF: 0.000131 AC: 2 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000386 AC: 2 AN: 5188

South Asian (SAS) AF: 0.000415 AC: 2 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10578

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68018

Other (OTH) AF: 0.00 AC: 0 AN: 2108

Alfa AF: 0.000113 Hom.: 0

Bravo AF: 0.0000907

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000988 AC: 12

EpiCase AF: 0.0000545

EpiControl AF: 0.000119

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	not provided (2)
-	1	-	Inborn genetic diseases (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.11
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.35	T
Eigen	Uncertain	0.63
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.045	D
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.37	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		8.1
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.8	N
REVEL	Uncertain	0.30
Sift	Uncertain	0.0010	D
Polyphen		0.99	D
Vest4		0.48
MVP		0.59
MPC		0.29
ClinPred		0.20	T
GERP RS		5.5
Varity_R		0.18
gMVP		0.26
Mutation Taster		=85/15	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

Other links and lift over

dbSNP: rs375600068; hg19: chr10-61832967; COSMIC: COSV55042581; COSMIC: COSV55042581;