rs104893771

chr3-129528993-T-Achr3-129528993-T-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Moderate

The NM_000539.3(RHO):c.260T>A(p.Val87Asp) variant causes a missense change. 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 Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V87F) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RHO NM_000539.3 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 6.24

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 12 ACMG points.

• PM1: In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 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 chr3-129528992-G-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2578949.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.98
• PP5: Variant 3-129528993-T-A is Pathogenic according to our data. Variant chr3-129528993-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 13020.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr3-129528993-T-A is described in Lovd as [Likely_pathogenic]. Variant chr3-129528993-T-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RHO	NM_000539.3	c.260T>A	p.Val87Asp	missense_variant	1/5	ENST00000296271.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RHO	ENST00000296271.4	c.260T>A	p.Val87Asp	missense_variant	1/5	1	NM_000539.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Pigmentary retinal dystrophy Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Feb 26, 2020

This variant was classified as: Likely pathogenic. The following ACMG criteria were applied in classifying this variant: PS1,PM2,PP3. -

Retinitis pigmentosa 4 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 01, 1991

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
Cadd	Pathogenic	29
Dann	Uncertain	0.99
DEOGEN2	Pathogenic	0.83	D
Eigen	Pathogenic	0.86
Eigen_PC	Pathogenic	0.78
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.13	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	-0.26	T
MutationAssessor	Pathogenic	3.3	M
MutationTaster	Benign	1.0	A
PrimateAI	Uncertain	0.73	T
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.52
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.038	D
Polyphen		1.0	D
Vest4		0.86
MutPred		0.89		Loss of stability (P = 0.0332);
MVP		0.97
MPC		1.1
ClinPred		1.0	D
GERP RS		4.4
Varity_R		0.97
gMVP		0.98

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

Publications

LitVar

Other links and lift over

dbSNP: rs104893771; hg19: chr3-129247836;