Genetic Variant CPEB2:p.Ala113Val (chr4-15003011-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001177382.2(CPEB2):c.338C>T(p.Ala113Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000468 in 1,495,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000030 ( 0 hom. )

Consequence

CPEB2
NM_001177382.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.317

Variant links:

Genes affected

CPEB2 (HGNC:21745): (cytoplasmic polyadenylation element binding protein 2) The protein encoded by this gene is highly similar to cytoplasmic polyadenylation element binding protein (CPEB), an mRNA-binding protein that regulates cytoplasmic polyadenylation of mRNA as a trans factor in oogenesis and spermatogenesis. Studies of the similar gene in mice suggested a possible role of this protein in transcriptionally inactive haploid spermatids. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

CPEB2 links:

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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=0.19735208).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPEB2	NM_001177382.2 link	c.338C>T	p.Ala113Val	missense_variant	Exon 1 of 12	ENST00000538197.7	NP_001170853.1	Q7Z5Q1-9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CPEB2	ENST00000538197.7 link	c.338C>T	p.Ala113Val	missense_variant	Exon 1 of 12	5	NM_001177382.2	ENSP00000443985.1		Q7Z5Q1-9

Frequencies

GnomAD3 genomes

AF:

0.0000200

AC:

AN:

150034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000736

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000297

AC:

AN:

1345514

Hom.:

Cov.:

AF XY:

0.00000301

AC XY:

AN XY:

663448

show subpopulations

Gnomad4 AFR exome

AF:

0.0000691

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000135

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.37e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000200

AC:

AN:

150034

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73206

show subpopulations

Gnomad4 AFR

AF:

0.0000736

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000808

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 06, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.338C>T (p.A113V) alteration is located in exon 1 (coding exon 1) of the CPEB2 gene. This alteration results from a C to T substitution at nucleotide position 338, causing the alanine (A) at amino acid position 113 to be replaced by a valine (V). 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

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.067

FATHMM_MKL

Benign

0.38

M_CAP

Pathogenic

0.77

MetaRNN

Benign

0.20

T;T

MetaSVM

Benign

-0.98

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-0.45

N;N

REVEL

Benign

0.041

Sift

Pathogenic

0.0

D;D

Sift4G

Benign

0.45

T;T

Vest4

0.073

MutPred

0.23

Loss of helix (P = 0.0167);Loss of helix (P = 0.0167);

MVP

0.28

MPC

0.32

ClinPred

0.94

GERP RS

2.3

gMVP

0.035

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