NM_000539.3(RHO):c.176T>G (p.Leu59Arg) AND not provided

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Nov 15, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001754606.4

Allele description [Variation Report for NM_000539.3(RHO):c.176T>G (p.Leu59Arg)]

NM_000539.3(RHO):c.176T>G (p.Leu59Arg)

Gene:

RHO:rhodopsin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

3q22.1

Genomic location:

Preferred name:

NM_000539.3(RHO):c.176T>G (p.Leu59Arg)

HGVS:

NC_000003.12:g.129528909T>G
NG_009115.1:g.5271T>G
NM_000539.3:c.176T>GMANE SELECT
NP_000530.1:p.Leu59Arg
NC_000003.11:g.129247752T>G

Protein change:

L59R

Links:

dbSNP: rs2108749238

NCBI 1000 Genomes Browser:

rs2108749238

Molecular consequence:

NM_000539.3:c.176T>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Synonyms:: none provided
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001996158	GeneDx	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	Uncertain significance (Oct 10, 2019)	germline	clinical testing	Citation Link,
SCV004488752	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Nov 15, 2023)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 28559085, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001996158

GeneDx

criteria provided, single submitter

(GeneDx Variant Classification Process June 2021)

Uncertain significance
(Oct 10, 2019)

germline

clinical testing

Citation Link,

SCV004488752

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Nov 15, 2023)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Clinically Focused Molecular Investigation of 1000 Consecutive Families with Inherited Retinal Disease.

Stone EM, Andorf JL, Whitmore SS, DeLuca AP, Giacalone JC, Streb LM, Braun TA, Mullins RF, Scheetz TE, Sheffield VC, Tucker BA.

Ophthalmology. 2017 Sep;124(9):1314-1331. doi: 10.1016/j.ophtha.2017.04.008. Epub 2017 May 27.

PubMed [citation]

PMID:: 28559085
PMCID:: PMC5565704

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From GeneDx, SCV001996158.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge; A different missense change at this residue (L59H) has been reported in published literature in association with retinitis pigmentosa (Stone et al., 2017)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Labcorp Genetics (formerly Invitae), Labcorp, SCV004488752.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 59 of the RHO protein (p.Leu59Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with RHO-related conditions. ClinVar contains an entry for this variant (Variation ID: 1308718). 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 with a positive predictive value of 80%. This variant disrupts the p.Leu59 amino acid residue in RHO. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 28559085; Invitae). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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