Genetic Variant RHO:p.Thr58Arg (chr3-129528906-C-G) – ACMG Classification: Pathogenic (16 pts)

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM2PM5PP3_StrongPP5_Very_Strong

The NM_000539.3(RHO):c.173C>G(p.Thr58Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T58M) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RHO
NM_000539.3 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:10

Conservation

PhyloP100: 6.17

Variant links:

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]

RHO links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr3-129528906-C-T is described in Lovd as [Likely_pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.991

PP5

Variant 3-129528906-C-G is Pathogenic according to our data. Variant chr3-129528906-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 13016.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-129528906-C-G is described in Lovd as [Pathogenic]. Variant chr3-129528906-C-G is described in Lovd as [Pathogenic]. Variant chr3-129528906-C-G is described in Lovd as [Likely_pathogenic]. Variant chr3-129528906-C-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RHO	NM_000539.3 link	c.173C>G	p.Thr58Arg	missense_variant	Exon 1 of 5	ENST00000296271.4	NP_000530.1	P08100

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RHO	ENST00000296271.4 link	c.173C>G	p.Thr58Arg	missense_variant	Exon 1 of 5	1	NM_000539.3	ENSP00000296271.3		P08100

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

show subpopulations

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.:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Retinitis pigmentosa 4

Pathogenic:4

Sep 01, 2020

Centre for Genomic Medicine, Manchester, Central Manchester University Hospitals

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 28, 2019

Mendelics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 01, 1991

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Feb 04, 2022

MGZ Medical Genetics Center

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Retinal dystrophy

Pathogenic:3

Jul 29, 2019

Blueprint Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 01, 2023

Dept Of Ophthalmology, Nagoya University

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

Jan 01, 2010

Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Pathogenic:2

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces threonine, which is neutral and polar, with arginine, which is basic and polar, at codon 58 of the RHO protein (p.Thr58Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with autosomal dominant retinitis pigmentosa (PMID: 2215617, 29847639). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 13016). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt RHO protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects RHO function (PMID: 1924344). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. For these reasons, this variant has been classified as Pathogenic. -

Aug 24, 2023

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 2333895, 15823756, 21094163, 8486634, 1924344, 2215617, 36648560, 30977563, 32483926, 25408095, 32882181, 32795431, 31717845, 29847639, 33777460, 31908405, 1929926, 28981474, 32037395, 18385078, 1882937, 8328469) -

RHO-related disorder

Pathogenic:1

Aug 05, 2024

PreventionGenetics, part of Exact Sciences

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

The RHO c.173C>G variant is predicted to result in the amino acid substitution p.Thr58Arg. This variant was reported in the heterozygous state in individuals with autosomal dominant retinitis pigmentosa (see, for example, Dryja et al. 1990. PubMed ID: 2215617; Jacobson et al. 1991. PubMed ID: 1882937; supplementary data, Comander et al. 2017. PubMed ID: 28981474; Martin-Merida et al. 2018. PubMed ID: 29847639; Georgiou et al. 2020. PubMed ID: 32795431). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. This variant is interpreted as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.41

BayesDel_noAF

Pathogenic

0.36

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.86

Eigen

Pathogenic

0.97

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.99

MetaSVM

Uncertain

0.62

MutationAssessor

Pathogenic

4.1

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-4.7

REVEL

Pathogenic

0.82

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.97

MutPred

0.94

Gain of MoRF binding (P = 0.0295);

MVP

0.99

MPC

0.93

ClinPred

1.0

GERP RS

5.5

Varity_R

1.0

gMVP

0.99

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