Genetic Variant POU2AF3:c.-411G>A (chr11-111299891-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 4P and 6B. PVS1_StrongBP6_ModerateBS2

The ENST00000638573.1(POU2AF3):c.112+1G>A variant causes a splice donor, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00981 in 477,620 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0080 ( 10 hom., cov: 33)

Exomes 𝑓: 0.011 ( 19 hom. )

Consequence

POU2AF3
ENST00000638573.1 splice_donor, intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.99

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:

COLCA1 (HGNC:33789): (colorectal cancer associated 1) This gene encodes a transmembrane protein that localizes to granular structures, including crystalloid eosinophilic granules and other granular organelles. This gene, along with an overlapping opposite strand gene, has been implicated as a susceptibility locus for colorectal cancer. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Nov 2014]

COLCA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.12195122 fraction of the gene. Cryptic splice site detected, with MaxEntScore 8.2, offset of 13, new splice context is: cagGTacct. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.

BP6

Variant 11-111299891-G-A is Benign according to our data. Variant chr11-111299891-G-A is described in ClinVar as [Benign]. Clinvar id is 2642363.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAd4 at 10 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POU2AF3	NM_001271458.2 link	c.8-636G>A		intron_variant	Intron 1 of 4	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.8-636G>A		intron_variant	Intron 1 of 4	1	NM_001271458.2	ENSP00000484135.1		A8K830-5

Frequencies

GnomAD3 genomes

AF:

0.00804

AC:

1223

AN:

152056

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00164

Gnomad AMI

AF:

0.0474

Gnomad AMR

AF:

0.00229

Gnomad ASJ

AF:

0.0130

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00620

Gnomad FIN

AF:

0.00726

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0133

Gnomad OTH

AF:

0.00909

GnomAD4 exome

AF:

0.0106

AC:

3464

AN:

325444

Hom.:

Cov.:

AF XY:

0.0112

AC XY:

1814

AN XY:

162504

show subpopulations

Gnomad4 AFR exome

AF:

0.00163

Gnomad4 AMR exome

AF:

0.00346

Gnomad4 ASJ exome

AF:

0.0126

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00370

Gnomad4 FIN exome

AF:

0.00963

Gnomad4 NFE exome

AF:

0.0126

Gnomad4 OTH exome

AF:

0.00982

GnomAD4 genome

AF:

0.00804

AC:

1223

AN:

152176

Hom.:

Cov.:

AF XY:

0.00733

AC XY:

545

AN XY:

74398

show subpopulations

Gnomad4 AFR

AF:

0.00164

Gnomad4 AMR

AF:

0.00229

Gnomad4 ASJ

AF:

0.0130

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00642

Gnomad4 FIN

AF:

0.00726

Gnomad4 NFE

AF:

0.0133

Gnomad4 OTH

AF:

0.00900

Alfa

AF:

0.0110

Hom.:

Bravo

AF:

0.00713

TwinsUK

AF:

0.00458

AC:

ALSPAC

AF:

0.0104

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jan 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

COLCA1: BS1, BS2; POU2AF3: BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

DANN

Benign

0.84

FATHMM_MKL

Benign

0.29

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.17

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