chr11-132657203-G-C

Position:

• chr11-132657203-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP5 BP4

The NM_001012393.5(OPCML):​c.263C>G​(p.Pro88Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: OPCML NM_001012393.5 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 3.85

Genes affected

OPCML (HGNC:8143): (opioid binding protein/cell adhesion molecule like) This gene encodes a member of the IgLON subfamily in the immunoglobulin protein superfamily of proteins. The encoded preprotein is proteolytically processed to generate the mature protein. This protein is localized in the plasma membrane and may have an accessory role in opioid receptor function. This gene has an ortholog in rat and bovine. The opioid binding-cell adhesion molecule encoded by the rat gene binds opioid alkaloids in the presence of acidic lipids, exhibits selectivity for mu ligands and acts as a GPI-anchored protein. Since the encoded protein is highly conserved in species during evolution, it may have a fundamental role in mammalian systems. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-132657203-G-C is Pathogenic according to our data. Variant chr11-132657203-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 8983.Status of the report is no_assertion_criteria_provided, 0 stars.
• BP4: Computational evidence support a benign effect (MetaRNN=0.16910103). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OPCML	NM_001012393.5	c.263C>G	p.Pro88Arg	missense_variant	3/8	ENST00000524381.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OPCML	ENST00000524381.6	c.263C>G	p.Pro88Arg	missense_variant	3/8	1	NM_001012393.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461890 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

Gnomad4 AFR exome AF: 0.00

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Ovarian neoplasm Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jul 01, 2003

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	23
DANN	Benign	0.94
DEOGEN2	Benign	0.081	T;T;.;.;.
Eigen	Benign	-0.0031
Eigen_PC	Benign	0.19
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.89	.;D;D;D;D
M_CAP	Benign	0.0030	T
MetaRNN	Benign	0.17	T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.49	N;N;N;.;.
MutationTaster	Benign	0.97	N;N;N;N
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-0.42	N;.;N;N;N
REVEL	Benign	0.034
Sift	Benign	0.25	T;.;T;T;T
Sift4G	Benign	0.38	T;T;T;T;T
Polyphen		0.0010	B;B;.;.;.
Vest4		0.33
MutPred		0.44		Gain of catalytic residue at P95 (P = 0.0374);Gain of catalytic residue at P95 (P = 0.0374);Gain of catalytic residue at P95 (P = 0.0374);.;.;
MVP		0.19
MPC		0.85
ClinPred		0.51	D
GERP RS		4.8
Varity_R		0.34
gMVP		0.57

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

Other links and lift over

dbSNP: rs137852691; hg19: chr11-132527098;