Genetic Variant OVCH2:p.Arg504Gln (chr11-7691397-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_198185.7(OVCH2):c.1511G>A(p.Arg504Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000041 in 1,610,940 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

OVCH2
NM_198185.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.611

Variant links:

Genes affected

OVCH2 (HGNC:29970): (ovochymase 2) Predicted to enable metal ion binding activity and serine-type endopeptidase activity. Predicted to be involved in proteolysis. Predicted to be located in extracellular region. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

OVCH2 links:

LOC105376533 (HGNC:):

LOC105376533 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OVCH2	NM_198185.7 link	c.1511G>A	p.Arg504Gln	missense_variant	Exon 14 of 16	ENST00000533663.6	NP_937828.3	A0A087X1V8
OVCH2	XM_047426878.1 link	c.1523G>A	p.Arg508Gln	missense_variant	Exon 14 of 18		XP_047282834.1
LOC105376533	XR_007062576.1 link	n.285C>T		non_coding_transcript_exon_variant	Exon 3 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OVCH2	ENST00000533663.6 link	c.1511G>A	p.Arg504Gln	missense_variant	Exon 14 of 16	5	NM_198185.7	ENSP00000484497.2	A0A087X1V8
OVCH2	ENST00000612000.1 link	c.1511G>A	p.Arg504Gln	missense_variant	Exon 14 of 15	5		ENSP00000484790.1	A0A087X1V8
OVCH2	ENST00000673880.1 link	c.1064G>A	p.Arg355Gln	missense_variant	Exon 10 of 12			ENSP00000501258.1	A0A669KBI9

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152064

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000162

AC:

AN:

247394

Hom.:

AF XY:

0.00000745

AC XY:

AN XY:

134188

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

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:

0.0000268

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000439

AC:

AN:

1458876

Hom.:

Cov.:

AF XY:

0.0000469

AC XY:

AN XY:

725468

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000449

Gnomad4 ASJ exome

AF:

0.0000385

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000523

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152064

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74254

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000580

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 21, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1511G>A (p.R504Q) alteration is located in exon 15 (coding exon 15) of the OVCH2 gene. This alteration results from a G to A substitution at nucleotide position 1511, causing the arginine (R) at amino acid position 504 to be replaced by a glutamine (Q). 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

Uncertain

0.082

BayesDel_noAF

Uncertain

-0.060

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.028

T;T

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.11

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.80

.;T

M_CAP

Benign

0.0057

MetaRNN

Uncertain

0.49

T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.24

Sift4G

Uncertain

0.0050

D;D

Vest4

0.32

MVP

0.048

ClinPred

0.96

GERP RS

5.6

gMVP

0.37

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.19

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