Genetic Variant POU2AF3:p.Ala188Ser (chr11-111308243-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001271458.2(POU2AF3):c.562G>T(p.Ala188Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000193 in 1,551,452 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

POU2AF3
NM_001271458.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.63

Variant links:

Genes affected

POU2AF3 (HGNC:26978): (POU class 2 homeobox associating factor 3) Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

POU2AF3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.045202076).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POU2AF3	NM_001271458.2 link	c.562G>T	p.Ala188Ser	missense_variant	Exon 5 of 5	ENST00000610738.6	NP_001258387.1	A8K830-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
POU2AF3	ENST00000610738.6 link	c.562G>T	p.Ala188Ser	missense_variant	Exon 5 of 5	1	NM_001271458.2	ENSP00000484135.1		A8K830-5

Frequencies

GnomAD3 genomes

AF:

0.0000461

AC:

AN:

151946

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000764

AC:

AN:

156976

Hom.:

AF XY:

0.0000722

AC XY:

AN XY:

83080

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000162

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:

0.000131

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1399506

Hom.:

Cov.:

AF XY:

0.0000174

AC XY:

AN XY:

690248

show subpopulations

Gnomad4 AFR exome

AF:

0.0000316

Gnomad4 AMR exome

AF:

0.000140

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:

0.0000148

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000461

AC:

AN:

151946

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74194

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000642

ExAC

AF:

0.0000381

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 09, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.271G>T (p.A91S) alteration is located in exon 5 (coding exon 2) of the COLCA2 gene. This alteration results from a G to T substitution at nucleotide position 271, causing the alanine (A) at amino acid position 91 to be replaced by a serine (S). 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

0.079

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.51

CADD

Benign

0.0070

DANN

Benign

0.57

DEOGEN2

Benign

0.031

.;.;.;T;T;T

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.099

LIST_S2

Benign

0.61

T;T;T;T;.;.

M_CAP

Benign

0.0065

MetaRNN

Benign

0.045

T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

.;.;.;L;L;L

PROVEAN

Benign

-1.6

.;.;N;.;N;N

REVEL

Benign

0.058

Sift

Benign

0.45

.;.;T;.;T;T

Sift4G

Benign

0.45

T;.;T;T;T;T

Polyphen

0.013

.;.;.;B;B;B

Vest4

0.13

MVP

0.030

ClinPred

0.031

GERP RS

-12

Varity_R

0.059

gMVP

0.033

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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