Variant chr17-2042207-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_080822.3(OVCA2):c.160C>T(p.Pro54Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000126 in 1,432,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

OVCA2
NM_080822.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.39

Variant links:

Genes affected

OVCA2 (HGNC:24203): (OVCA2 serine hydrolase domain containing) Involved in response to retinoic acid. Located in cytoplasm. Biomarker of ovarian cancer. [provided by Alliance of Genome Resources, Apr 2022]

OVCA2 links:

DPH1 (HGNC:3003): (diphthamide biosynthesis 1) The protein encoded by this gene is an enzyme involved in the biosynthesis of diphthamide, a modified histidine found only in elongation factor-2 (EEF2). Diphthamide residues in EEF2 are targeted for ADP-ribosylation by diphtheria toxin and Pseudomonas exotoxin A. Defects in this gene have been associated with both ovarian cancer and autosomal recessive intellectual disability with short stature, craniofacial, and ectodermal anomalies. [provided by RefSeq, Oct 2016]

DPH1 links:

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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=0.04197818).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OVCA2	NM_080822.3 linkuse as main transcript	c.160C>T	p.Pro54Ser	missense_variant	1/2	ENST00000572195.3
DPH1	NM_001383.6 linkuse as main transcript	c.*18+332C>T		intron_variant		ENST00000263083.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OVCA2	ENST00000572195.3 linkuse as main transcript	c.160C>T	p.Pro54Ser	missense_variant	1/2	1	NM_080822.3	P1
DPH1	ENST00000263083.12 linkuse as main transcript	c.*18+332C>T		intron_variant		1	NM_001383.6	P1	Q9BZG8-4

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000395

AC:

AN:

50582

Hom.:

AF XY:

0.0000355

AC XY:

AN XY:

28130

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:

0.0000865

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000130

AC:

167

AN:

1279860

Hom.:

Cov.:

AF XY:

0.000128

AC XY:

AN XY:

623068

show subpopulations

Gnomad4 AFR exome

AF:

0.0000398

Gnomad4 AMR exome

AF:

0.00

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:

0.000160

Gnomad4 OTH exome

AF:

0.0000189

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.0000481

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:

0.000177

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000156

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.0000564

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

May 20, 2024

The c.160C>T (p.P54S) alteration is located in exon 1 (coding exon 1) of the OVCA2 gene. This alteration results from a C to T substitution at nucleotide position 160, causing the proline (P) at amino acid position 54 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

0.081

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.70

CADD

Benign

1.2

DANN

Benign

0.92

DEOGEN2

Benign

0.023

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.35

M_CAP

Benign

0.0018

MetaRNN

Benign

0.042

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.59

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.16

MVP

0.16

MPC

0.025

ClinPred

0.16

GERP RS

-1.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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