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GeneBe

1-241604553-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014322.3(OPN3):c.400G>A(p.Val134Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000416 in 1,611,670 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

OPN3
NM_014322.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.46
Variant links:
Genes affected
OPN3 (HGNC:14007): (opsin 3) Opsins are members of the guanine nucleotide-binding protein (G protein)-coupled receptor superfamily. In addition to the visual opsins, mammals possess several photoreceptive non-visual opsins that are expressed in extraocular tissues. This gene, opsin 3, is strongly expressed in brain and testis and weakly expressed in liver, placenta, heart, lung, skeletal muscle, kidney, and pancreas. The gene may also be expressed in the retina. The protein has the canonical features of a photoreceptive opsin protein. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36528257).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OPN3NM_014322.3 linkuse as main transcriptc.400G>A p.Val134Met missense_variant 2/4 ENST00000366554.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OPN3ENST00000366554.3 linkuse as main transcriptc.400G>A p.Val134Met missense_variant 2/41 NM_014322.3 P1Q9H1Y3-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152016
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000361
AC:
9
AN:
249214
Hom.:
0
AF XY:
0.0000446
AC XY:
6
AN XY:
134654
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000536
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000418
AC:
61
AN:
1459654
Hom.:
0
Cov.:
32
AF XY:
0.0000482
AC XY:
35
AN XY:
725716
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000177
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
152016
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74260
show subpopulations
Gnomad4 AFR
AF:
0.0000725
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.000102
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 submitterclinical testingAmbry GeneticsJan 03, 2024The c.400G>A (p.V134M) alteration is located in exon 2 (coding exon 2) of the OPN3 gene. This alteration results from a G to A substitution at nucleotide position 400, causing the valine (V) at amino acid position 134 to be replaced by a methionine (M). 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
0.17
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.44
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Benign
0.083
T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
1.6
L
MutationTaster
Benign
1.0
D;N
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-2.1
N
REVEL
Benign
0.18
Sift
Benign
0.045
D
Sift4G
Uncertain
0.055
T
Polyphen
1.0
D
Vest4
0.34
MVP
0.41
MPC
0.85
ClinPred
0.61
D
GERP RS
4.3
Varity_R
0.16
gMVP
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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.

Other links and lift over

dbSNP: rs369503031; hg19: chr1-241767855; COSMIC: COSV59363839; COSMIC: COSV59363839; API