Variant chr16-21250587-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_145865.3(ANKS4B):c.1021G>A(p.Asp341Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000491 in 1,614,040 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 (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00052 ( 1 hom. )

Consequence

ANKS4B
NM_145865.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.97

Variant links:

Genes affected

ANKS4B (HGNC:26795): (ankyrin repeat and sterile alpha motif domain containing 4B) Involved in brush border assembly; cellular protein-containing complex assembly; and protein localization to microvillus. Located in brush border and microvillus. [provided by Alliance of Genome Resources, Apr 2022]

ANKS4B links:

CRYM (HGNC:2418): (crystallin mu) Crystallins are separated into two classes: taxon-specific and ubiquitous. The former class is also called phylogenetically-restricted crystallins. The latter class constitutes the major proteins of vertebrate eye lens and maintains the transparency and refractive index of the lens. This gene encodes a taxon-specific crystallin protein that binds NADPH and has sequence similarity to bacterial ornithine cyclodeaminases. The encoded protein does not perform a structural role in lens tissue, and instead it binds thyroid hormone for possible regulatory or developmental roles. Mutations in this gene have been associated with autosomal dominant non-syndromic deafness. [provided by RefSeq, Sep 2014]

CRYM links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20239004).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANKS4B	NM_145865.3 linkuse as main transcript	c.1021G>A	p.Asp341Asn	missense_variant	2/2	ENST00000311620.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
ANKS4B	ENST00000311620.7 linkuse as main transcript	c.1021G>A	p.Asp341Asn	missense_variant	2/2	1	NM_145865.3	P1
CRYM	ENST00000574448.5 linkuse as main transcript	c.*521-6519C>T		intron_variant, NMD_transcript_variant		1
CRYM	ENST00000570401.5 linkuse as main transcript	c.265-6519C>T		intron_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000177

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000324

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000213

AC:

AN:

249142

Hom.:

AF XY:

0.000192

AC XY:

AN XY:

135144

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

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:

0.000407

Gnomad OTH exome

AF:

0.000993

GnomAD4 exome

AF:

0.000523

AC:

765

AN:

1461888

Hom.:

Cov.:

AF XY:

0.000474

AC XY:

345

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

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:

0.0000562

Gnomad4 NFE exome

AF:

0.000646

Gnomad4 OTH exome

AF:

0.000695

GnomAD4 genome

AF:

0.000177

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000324

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000362

Hom.:

Bravo

AF:

0.000159

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.000238

AC:

ESP6500EA

AF:

0.000829

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2021

The c.1021G>A (p.D341N) alteration is located in exon 2 (coding exon 2) of the ANKS4B gene. This alteration results from a G to A substitution at nucleotide position 1021, causing the aspartic acid (D) at amino acid position 341 to be replaced by an asparagine (N). 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

0.10

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.024

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

1.0

M_CAP

Benign

0.037

MetaRNN

Benign

0.20

MetaSVM

Benign

-0.51

MutationAssessor

Uncertain

2.9

MutationTaster

Benign

1.0

PrimateAI

Benign

0.37

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.36

Sift

Uncertain

0.010

Sift4G

Benign

0.15

Polyphen

0.95

Vest4

0.27

MVP

0.89

MPC

0.63

ClinPred

0.31

GERP RS

6.1

Varity_R

0.15

gMVP

0.073

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