rs104893780

chr3-129532264-G-A

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Very_Strong

The NM_000539.3(RHO):c.544G>A(p.Gly182Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G182D) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RHO NM_000539.3 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 10.0

Genes affected

RHO (HGNC:10012): (rhodopsin) The protein encoded by this gene is found in rod cells in the back of the eye and is essential for vision in low-light conditions. The encoded protein binds to 11-cis retinal and is activated when light hits the retinal molecule. Defects in this gene are a cause of congenital stationary night blindness. [provided by RefSeq, Aug 2017]

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PM1: In a hotspot region, there are 11 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 7 uncertain in NM_000539.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr3-129532265-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1038982.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.99
• PP5: Variant 3-129532264-G-A is Pathogenic according to our data. Variant chr3-129532264-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 13033.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-129532264-G-A is described in Lovd as [Pathogenic]. Variant chr3-129532264-G-A is described in Lovd as [Pathogenic]. Variant chr3-129532264-G-A is described in Lovd as [Likely_pathogenic]. Variant chr3-129532264-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RHO	NM_000539.3	c.544G>A	p.Gly182Ser	missense_variant	3/5	ENST00000296271.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RHO	ENST00000296271.4	c.544G>A	p.Gly182Ser	missense_variant	3/5	1	NM_000539.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Retinitis pigmentosa 4 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 01, 1991

- -

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Invitae

Jun 04, 2022

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 182 of the RHO protein (p.Gly182Ser). This variant is not present in population databases (gnomAD no frequency). For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Gly182 amino acid residue in RHO. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 25221422, 25366773, 29847639). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Experimental studies have shown that this missense change affects RHO function (PMID: 30977563). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt RHO protein function. ClinVar contains an entry for this variant (Variation ID: 13033). This missense change has been observed in individual(s) with autosomal dominant retinitis pigmentosa (PMID: 1897520). It has also been observed to segregate with disease in related individuals. -

Retinal dystrophy Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Blueprint Genetics

Jul 11, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
Cadd	Pathogenic	28
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.83	D
Eigen	Pathogenic	0.80
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D
M_CAP	Uncertain	0.19	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	0.63	D
MutationAssessor	Pathogenic	3.9	H
MutationTaster	Benign	1.0	A
PrimateAI	Uncertain	0.69	T
PROVEAN	Pathogenic	-5.4	D
REVEL	Pathogenic	0.84
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.89		Loss of catalytic residue at L183 (P = 0.1157);
MVP		0.97
MPC		0.86
ClinPred		1.0	D
GERP RS		4.3
Varity_R		0.97
gMVP		0.81

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: rs104893780; hg19: chr3-129251107;