Variant 1-203496184-T-C 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_014359.4(OPTC):c.179T>C(p.Ile60Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00018 in 1,614,172 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 0.00060 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

OPTC
NM_014359.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.103

Variant links:

Genes affected

OPTC (HGNC:8158): (opticin) Opticin belongs to class III of the small leucine-rich repeat protein (SLRP) family. Members of this family are typically associated with the extracellular matrix. Opticin is present in significant quantities in the vitreous of the eye and also localizes to the cornea, iris, ciliary body, optic nerve, choroid, retina, and fetal liver. Opticin may noncovalently bind collagen fibrils and regulate fibril morphology, spacing, and organization. The opticin gene is mapped to a region of chromosome 1 that is associated with the inherited eye diseases age-related macular degeneration (AMD) and posterior column ataxia with retinosa pigmentosa (AXPC1). [provided by RefSeq, Jul 2008]

OPTC 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=0.010210693).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OPTC	NM_014359.4 linkuse as main transcript	c.179T>C	p.Ile60Thr	missense_variant	2/8	ENST00000367222.7	NP_055174.1	Q9UBM4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OPTC	ENST00000367222.7 linkuse as main transcript	c.179T>C	p.Ile60Thr	missense_variant	2/8	1	NM_014359.4	ENSP00000356191.2		Q9UBM4
OPTC	ENST00000448911.1 linkuse as main transcript	c.179T>C	p.Ile60Thr	missense_variant	1/4	2		ENSP00000399491.2		Q5T2G3

Frequencies

GnomAD3 genomes

AF:

0.000598

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00200

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000259

AC:

AN:

251448

Hom.:

AF XY:

0.000258

AC XY:

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.00222

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000136

AC:

199

AN:

1461864

Hom.:

Cov.:

AF XY:

0.000127

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00221

Gnomad4 AMR exome

AF:

0.000246

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000854

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000597

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.000564

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00200

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000227

Hom.:

Bravo

AF:

0.000710

ESP6500AA

AF:

0.00272

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000329

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000356

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

Feb 03, 2022

The c.179T>C (p.I60T) alteration is located in exon 2 (coding exon 1) of the OPTC gene. This alteration results from a T to C substitution at nucleotide position 179, causing the isoleucine (I) at amino acid position 60 to be replaced by a threonine (T). 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

-0.44

BayesDel_noAF

Benign

-0.41

CADD

Benign

3.1

DANN

Benign

0.95

DEOGEN2

Benign

0.046

T;T

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.080

LIST_S2

Benign

0.59

T;T

M_CAP

Benign

0.019

MetaRNN

Benign

0.010

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.5

M;.

PrimateAI

Benign

0.35

PROVEAN

Benign

-2.2

N;N

REVEL

Benign

0.064

Sift

Benign

0.063

T;D

Sift4G

Benign

0.20

T;D

Polyphen

0.011

B;.

Vest4

0.082

MVP

0.36

MPC

0.11

ClinPred

0.0099

GERP RS

1.1

Varity_R

0.091

gMVP

0.45

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