3-129531025-C-T
Variant summary
Our verdict is Pathogenic. The variant received 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_000539.3(RHO):c.511C>T(p.Pro171Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,692 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 Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P171R) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000539.3 missense
Scores
Clinical Significance
Conservation
Publications
- congenital stationary night blindness autosomal dominant 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
- retinitis pigmentosa 4Inheritance: AD, AR, SD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
- congenital stationary night blindnessInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- retinitis pigmentosaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- fundus albipunctatusInheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Pathogenic. The variant received 19 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RHO | NM_000539.3 | c.511C>T | p.Pro171Ser | missense_variant | Exon 2 of 5 | ENST00000296271.4 | NP_000530.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RHO | ENST00000296271.4 | c.511C>T | p.Pro171Ser | missense_variant | Exon 2 of 5 | 1 | NM_000539.3 | ENSP00000296271.3 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251166 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461692Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2AN XY: 727164 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Retinal dystrophy Pathogenic:2
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Retinitis pigmentosa 4 Pathogenic:1
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not provided Pathogenic:1
This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 171 of the RHO protein (p.Pro171Ser). This variant is present in population databases (rs104893794, gnomAD 0.01%). This missense change has been observed in individuals with clinical features of autosomal dominant retinitis pigmentosa (PMID: 8088850, 26962691; Invitae). ClinVar contains an entry for this variant (Variation ID: 13050). 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.Pro171 amino acid residue in RHO. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 1833777, 8253795, 29847639). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -
Retinitis pigmentosa Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at