rs199800166

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_013275.6(ANKRD11):c.2684G>A(p.Arg895Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,614,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

ANKRD11
NM_013275.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 1.33

Variant links:

Genes affected

ANKRD11 (HGNC:21316): (ankyrin repeat domain containing 11) This locus encodes an ankryin repeat domain-containing protein. The encoded protein inhibits ligand-dependent activation of transcription. Mutations in this gene have been associated with KBG syndrome, which is characterized by macrodontia, distinctive craniofacial features, short stature, skeletal anomalies, global developmental delay, seizures and intellectual disability. Alternatively spliced transcript variants have been described. Related pseudogenes exist on chromosomes 2 and X. [provided by RefSeq, Jan 2012]

ANKRD11 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.05285901).

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000151 (23/152278) while in subpopulation AMR AF= 0.00137 (21/15302). AF 95% confidence interval is 0.000919. There are 0 homozygotes in gnomad4. There are 10 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ANKRD11	NM_013275.6 linkuse as main transcript	c.2684G>A	p.Arg895Gln	missense_variant	9/13	ENST00000301030.10
ANKRD11	NM_001256182.2 linkuse as main transcript	c.2684G>A	p.Arg895Gln	missense_variant	10/14
ANKRD11	NM_001256183.2 linkuse as main transcript	c.2684G>A	p.Arg895Gln	missense_variant	9/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANKRD11	ENST00000301030.10 linkuse as main transcript	c.2684G>A	p.Arg895Gln	missense_variant	9/13	5	NM_013275.6	P1

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00137

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:

0.0000147

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

250974

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135702

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461838

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727214

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000151

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00137

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000475

Bravo

AF:

0.000336

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

KBG syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Dec 18, 2023

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 895 of the ANKRD11 protein (p.Arg895Gln). This variant is present in population databases (rs199800166, gnomAD 0.003%). This missense change has been observed in individual(s) with intellectual disability, ataxia and dismorphic facial features (PMID: 30919572). ClinVar contains an entry for this variant (Variation ID: 430379). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ANKRD11 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jun 23, 2021

Missense variant in a gene in which most reported pathogenic variants are truncating/loss-of-function; In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 30919572, 27535533) -

ANKRD11-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Sep 26, 2022

The ANKRD11 c.2684G>A variant is predicted to result in the amino acid substitution p.Arg895Gln. This variant was reported as likely pathogenic in a male patient with intellectual disability, speech delay, ataxia, and dysmorphic facial features including high nasal bridge and prominent chin (Table S1 & S3, Al-Dewik et al 2019. PubMed ID: 30919572). However, conclusive evidence of pathogenicity was not presented. This variant is reported in 0.0029% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/16-89350266-C-T). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 06, 2017

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.47

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Benign

0.22

T;T;T;.

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.0076

FATHMM_MKL

Benign

0.15

M_CAP

Benign

0.013

MetaRNN

Benign

0.053

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

M;M;M;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.87

N;N;.;.

REVEL

Benign

0.048

Sift

Uncertain

0.0060

D;D;.;.

Sift4G

Benign

0.12

T;T;.;.

Polyphen

0.15

B;B;B;.

Vest4

0.22

MVP

0.37

MPC

0.39

ClinPred

0.58

GERP RS

4.4

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.9

Varity_R

0.098

gMVP

0.0040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over