NM_033282.4:c.304C>A

Variant names:

• chr10-86658045-C-A
• rs543587644
• NM_033282.4:c.304C>A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_033282.4(OPN4):​c.304C>A​(p.Arg102Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: OPN4 NM_033282.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.412
• Publications: 3 publications found

Genes affected

OPN4 (HGNC:14449): (opsin 4) Opsins are members of the guanine nucleotide-binding protein (G protein)-coupled receptor superfamily. This gene encodes a photoreceptive opsin protein that is expressed within the ganglion and amacrine cell layers of the retina. In mouse, retinal ganglion cell axons expressing this gene projected to the suprachiasmatic nucleus and other brain nuclei involved in circadian photoentrainment. In mouse, this protein is coupled to a transient receptor potential (TRP) ion channel through a G protein signaling pathway and produces a physiologic light response via membrane depolarization and increased intracellular calcium. The protein functions as a sensory photopigment and may also have photoisomerase activity. Experiments with knockout mice indicate that this gene attenuates, but does not abolish, photoentrainment. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

ENSG00000289258 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.2).
• BP7: Synonymous conserved (PhyloP=0.412 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033282.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OPN4	NM_033282.4	MANE Select	c.304C>A	p.Arg102Arg	synonymous	Exon 3 of 10	NP_150598.1	Q9UHM6-1
	OPN4	NM_001030015.3		c.337C>A	p.Arg113Arg	synonymous	Exon 4 of 11	NP_001025186.1	Q9UHM6-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OPN4	ENST00000241891.10	TSL:1 MANE Select	c.304C>A	p.Arg102Arg	synonymous	Exon 3 of 10	ENSP00000241891.5	Q9UHM6-1
	ENSG00000289258	ENST00000443292.2	TSL:1	c.337C>A	p.Arg113Arg	synonymous	Exon 4 of 18	ENSP00000393132.2	C9JWU6
	OPN4	ENST00000372071.7	TSL:1	c.337C>A	p.Arg113Arg	synonymous	Exon 4 of 11	ENSP00000361141.2	Q9UHM6-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460850 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726694

African (AFR) AF: 0.00 AC: 0 AN: 33458

American (AMR) AF: 0.00 AC: 0 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26116

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86172

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53352

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5142

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111918

Other (OTH) AF: 0.0000332 AC: 2 AN: 60294

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.20
CADD	Benign	6.8
DANN	Benign	0.71
PhyloP100		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs543587644; hg19: chr10-88417802;