rs148985828

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2

The NM_002700.3(POU4F3):c.513C>A(p.Ser171Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00016 in 1,610,704 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 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. S171S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

POU4F3
NM_002700.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.300

Variant links:

Genes affected

POU4F3 (HGNC:9220): (POU class 4 homeobox 3) This gene encodes a member of the POU-domain family of transcription factors. POU-domain proteins have been observed to play important roles in control of cell identity in several systems. This protein is found in the retina and may play a role in determining or maintaining the identities of a small subset of visual system neurons. Defects in this gene are the cause of non-syndromic sensorineural deafness autosomal dominant type 15. [provided by RefSeq, Mar 2009]

POU4F3 links:

LOC127814297 (HGNC:):

LOC127814297 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10919702).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000118 (18/152218) while in subpopulation NFE AF= 0.00022 (15/68040). AF 95% confidence interval is 0.000135. There are 0 homozygotes in gnomad4. There are 8 alleles in male gnomad4 subpopulation. Median coverage is 33. 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 18 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
POU4F3	NM_002700.3 linkuse as main transcript	c.513C>A	p.Ser171Arg	missense_variant	2/2	ENST00000646991.2
LOC127814297	NM_001414499.1 linkuse as main transcript	c.*382C>A		3_prime_UTR_variant	20/20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
POU4F3	ENST00000646991.2 linkuse as main transcript	c.513C>A	p.Ser171Arg	missense_variant	2/2		NM_002700.3	P1
	ENST00000515598.1 linkuse as main transcript	n.404-32664G>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000220

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000105

AC:

AN:

247758

Hom.:

AF XY:

0.000126

AC XY:

AN XY:

134454

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.000221

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000164

AC:

239

AN:

1458486

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

126

AN XY:

725754

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000199

Gnomad4 NFE exome

AF:

0.000201

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.000118

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000220

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000245

Hom.:

Bravo

AF:

0.000102

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000124

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 04, 2016

The p.Ser171Arg variant in POU4F3 has not been previously reported in individual s with hearing loss, but has been identified in 13/65634 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP r s148985828). Although this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. Computational predic tion tools and conservation analyses do not provide strong support for or agains t an impact to the protein. In summary, the clinical significance of this varian t is uncertain. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 21, 2023

The c.513C>A (p.S171R) alteration is located in exon 2 (coding exon 2) of the POU4F3 gene. This alteration results from a C to A substitution at nucleotide position 513, causing the serine (S) at amino acid position 171 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Autosomal dominant nonsyndromic hearing loss 15

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jul 26, 2021

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Sep 11, 2023

This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 171 of the POU4F3 protein (p.Ser171Arg). This variant is present in population databases (rs148985828, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with POU4F3-related conditions. ClinVar contains an entry for this variant (Variation ID: 504672). 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 POU4F3 protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.31

Cadd

Benign

Dann

Benign

0.93

DEOGEN2

Benign

0.19

T;T

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.26

FATHMM_MKL

Benign

0.73

M_CAP

Benign

0.036

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.34

N;N

MutationTaster

Benign

0.66

PrimateAI

Uncertain

0.60

Polyphen

0.50

P;P

Vest4

0.30

MutPred

0.19

Loss of glycosylation at S171 (P = 0.0077);Loss of glycosylation at S171 (P = 0.0077);

MVP

0.45

MPC

0.53

ClinPred

0.046

GERP RS

2.8

Varity_R

0.13

gMVP

0.39

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