rs104893796

chr3-129529014-C-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PP3_Strong PP5_Moderate

The NM_000539.3(RHO):c.281C>T(p.Thr94Ile) 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 Likely pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. T94T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RHO NM_000539.3 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 7.52

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 10 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, 6 uncertain in NM_000539.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.98
• PP5: Variant 3-129529014-C-T is Pathogenic according to our data. Variant chr3-129529014-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 13054.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr3-129529014-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RHO	NM_000539.3	c.281C>T	p.Thr94Ile	missense_variant	1/5	ENST00000296271.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RHO	ENST00000296271.4	c.281C>T	p.Thr94Ile	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

Congenital stationary night blindness autosomal dominant 1 Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	3billion	May 22, 2022	The variant is not observed in the gnomAD v2.1.1 dataset. Missense changes are a common disease-causing mechanism. In silico tool predictions suggest damaging effect of the variant on gene or gene product (REVEL: 0.67; 3Cnet: 0.96). Same nucleotide change resulting in same amino acid change has been previously reported to be associated with RHO related disorder (ClinVar ID: VCV000013054 / PMID: 9888392). The variant has been reported to co-segregate with the disease in at least 5 similarly affected relatives/individuals in the same family or similarly affected unrelated families (PMID:9888392). Therefore, this variant is classified as likely pathogenic according to the recommendation of ACMG/AMP guideline. -
Pathogenic, no assertion criteria provided	literature only	OMIM	Jan 01, 1999	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.17
Cadd	Pathogenic	26
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.46	T
Eigen	Pathogenic	0.72
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Benign	-0.32	T
MutationAssessor	Pathogenic	3.7	H
MutationTaster	Benign	1.0	A
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-2.1	N
REVEL	Pathogenic	0.67
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0060	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.88		Loss of glycosylation at S93 (P = 0.0272);
MVP		0.93
MPC		0.90
ClinPred		1.0	D
GERP RS		4.4
Varity_R		0.89
gMVP		0.91

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: rs104893796; hg19: chr3-129247857;