8-127416287-G-T

Position:

chr8-127416287-G-T

Variant summary

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

The NM_001159542.3(POU5F1B):c.421G>T(p.Ala141Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

POU5F1B
NM_001159542.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.17

Variant links:

Genes affected

POU5F1B (HGNC:9223): (POU class 5 homeobox 1B) This intronless gene was thought to be a transcribed pseudogene of POU class 5 homeobox 1, however, it has been reported that this gene can encode a functional protein. The encoded protein is nearly the same length as and highly similar to the POU class 5 homeobox 1 transcription factor, has been shown to be a weak transcriptional activator and may play a role in carcinogenesis and eye development. [provided by RefSeq, Apr 2009]

POU5F1B links:

CASC8 (HGNC:45129): (cancer susceptibility 8)

CASC8 links:

PCAT1 (HGNC:43022): (prostate cancer associated transcript 1) This gene produces a long non-coding RNA that promotes cell proliferation and is upregulated in prostate, colorectal, and other cancers. This RNA negatively regulates the BRCA2 tumor suppressor protein and positively regulates Myc oncoprotein. It contains binding sites for microRNAs, and may act as a sponge for microRNAs that regulate cell growth pathways. [provided by RefSeq, Dec 2017]

PCAT1 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=0.055456012).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
POU5F1B	NM_001159542.3 linkuse as main transcript	c.421G>T	p.Ala141Ser	missense_variant	1/1	ENST00000696633.1	NP_001153014.1
CASC8	NR_117100.1 linkuse as main transcript	n.1176+4542C>A		intron_variant, non_coding_transcript_variant
POU5F1B	NM_001395745.1 linkuse as main transcript	c.421G>T	p.Ala141Ser	missense_variant	2/2		NP_001382674.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
POU5F1B	ENST00000696633.1 linkuse as main transcript	c.421G>T	p.Ala141Ser	missense_variant	1/1		NM_001159542.3	ENSP00000512769	P1
CASC8	ENST00000502082.5 linkuse as main transcript	n.1176+4542C>A		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

250704

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135510

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461534

Hom.:

Cov.:

113

AF XY:

0.00000413

AC XY:

AN XY:

727052

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

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

Jun 22, 2021

The c.421G>T (p.A141S) alteration is located in exon 1 (coding exon 1) of the POU5F1B gene. This alteration results from a G to T substitution at nucleotide position 421, causing the alanine (A) at amino acid position 141 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

0.082

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.47

CADD

Benign

3.5

DANN

Benign

0.96

DEOGEN2

Benign

0.0027

T;T

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.033

LIST_S2

Benign

0.74

.;T

M_CAP

Benign

0.040

MetaRNN

Benign

0.055

T;T

MetaSVM

Benign

-0.59

MutationAssessor

Benign

1.6

L;L

MutationTaster

Benign

0.99

N;N

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.42

.;N

REVEL

Benign

0.17

Sift

Benign

0.12

.;T

Sift4G

Benign

0.36

.;T

Polyphen

0.0020

B;B

Vest4

0.024

MutPred

0.29

Gain of phosphorylation at A141 (P = 0.0478);Gain of phosphorylation at A141 (P = 0.0478);

MVP

0.39

MPC

0.045

ClinPred

0.015

GERP RS

1.1

Varity_R

0.11

gMVP

0.13

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