12-55724028-G-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PM5PP3_ModeratePP5_Very_Strong

The NM_002905.5(RDH5):c.712G>T(p.Gly238Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000281 in 1,611,424 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. G238A) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

RDH5
NM_002905.5 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:12

Conservation

PhyloP100: 9.97

Variant links:

Genes affected

RDH5 (HGNC:9940): (retinol dehydrogenase 5) This gene encodes an enzyme belonging to the short-chain dehydrogenases/reductases (SDR) family. This retinol dehydrogenase functions to catalyze the final step in the biosynthesis of 11-cis retinaldehyde, which is the universal chromophore of visual pigments. Mutations in this gene cause autosomal recessive fundus albipunctatus, a rare form of night blindness that is characterized by a delay in the regeneration of cone and rod photopigments. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the neighboring upstream BLOC1S1 (biogenesis of lysosomal organelles complex-1, subunit 1) gene. [provided by RefSeq, Dec 2010]

RDH5 links:

BLOC1S1-RDH5 (HGNC:):

BLOC1S1-RDH5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a topological_domain Lumenal (size 266) in uniprot entity RDH5_HUMAN there are 70 pathogenic changes around while only 10 benign (88%) in NM_002905.5

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr12-55724029-G-C is described in Lovd as [Likely_pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.887

PP5

Variant 12-55724028-G-T is Pathogenic according to our data. Variant chr12-55724028-G-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 8003.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-55724028-G-T is described in Lovd as [Likely_pathogenic]. Variant chr12-55724028-G-T is described in Lovd as [Pathogenic]. Variant chr12-55724028-G-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RDH5	NM_002905.5 linkuse as main transcript	c.712G>T	p.Gly238Trp	missense_variant	4/5	ENST00000257895.10
BLOC1S1-RDH5	NR_037658.1 linkuse as main transcript	n.771G>T		non_coding_transcript_exon_variant	5/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RDH5	ENST00000257895.10 linkuse as main transcript	c.712G>T	p.Gly238Trp	missense_variant	4/5	1	NM_002905.5	P1

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000353

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000219

AC:

AN:

246894

Hom.:

AF XY:

0.000224

AC XY:

AN XY:

133976

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000435

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000347

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000290

AC:

423

AN:

1459094

Hom.:

Cov.:

AF XY:

0.000284

AC XY:

206

AN XY:

725916

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000425

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000339

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000197

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000353

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000364

Hom.:

Bravo

AF:

0.000223

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.000653

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:12

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Pigmentary retinal dystrophy

Pathogenic:4

Pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Sep 18, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	Mendelics	May 28, 2019	- -
Pathogenic, criteria provided, single submitter	clinical testing	3billion	May 22, 2022	The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.021%). Functional studies provide strong evidence of the variant having a damaging effect on the gene or gene product (PMID:11675386). In silico tool predictions suggest damaging effect of the variant on gene or gene product (REVEL: 0.92; 3Cnet: 0.72). Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000008003). The variant has been reported to co-segregate with the disease in at least one similarly affected relative/individual in the same family or similarly affected unrelated family (PMID:10369264, 10617778). Therefore, this variant is classified as pathogenic according to the recommendation of ACMG/AMP guideline. -
Pathogenic, no assertion criteria provided	research	Sharon lab, Hadassah-Hebrew University Medical Center	Jun 23, 2019	- -

not provided

Pathogenic:4

Pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Nov 29, 2016	- -
Pathogenic, criteria provided, single submitter	clinical testing	Invitae	Dec 01, 2023	This sequence change replaces glycine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 238 of the RDH5 protein (p.Gly238Trp). This variant is present in population databases (rs62638191, gnomAD 0.05%). This missense change has been observed in individuals with fundus albipunctatus (PMID: 10369264, 10617778). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 8003). 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 RDH5 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects RDH5 function (PMID: 11675386). For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2017	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Dec 18, 2018	Published functional studies demonstrate a damaging effect; variant causes reduced enzymatic activity and different staining pattern with a strong perinuclear localization for G238W mutant cells compared to wild type (Liden et al., 2001; Yamamoto et al., 1999); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 31456290, 32141364, 17476461, 20829743, 10617778, 18949499, 10369264, 11675386) -

Fundus albipunctatus, autosomal recessive

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Dec 30, 1999

- -

See cases

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Laboratorio de Genetica e Diagnostico Molecular, Hospital Israelita Albert Einstein

Jul 15, 2020

ACMG classification criteria: PS3, PS4, PM2, PP1 -

RDH5-related disorder

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 21, 2023

The RDH5 c.712G>T variant is predicted to result in the amino acid substitution p.Gly238Trp. This variant has been reported in the homozygous and compound heterozygous states in individuals with autosomal recessive fundus albipunctatus (Yamamoto et al. 1999. PubMed ID: 10369264; Gonzalez-Fernandez et al. 1999. PubMed ID: 10617778). Functional studies have shown that the p.Gly238Trp substitution reduces enzyme activity by 90% (Yamamoto et al. 1999. PubMed ID: 10369264; Lidén et al. 2001. PubMed ID: 11675386). This variant is reported in 0.045% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-56117812-G-T). Given the evidence, we interpret c.712G>T (p.Gly238Trp) as pathogenic. -

Congenital stationary night blindness

Pathogenic:1

Pathogenic, criteria provided, single submitter

research

Ophthalmic Genetics Group, Institute of Molecular and Clinical Ophthalmology Basel

Jul 24, 2023

Clinical significance based on ACMG v2.0 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.83

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.48

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.12

T;D;D

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.90

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.79

T;.;T

M_CAP

Pathogenic

0.66

MetaRNN

Pathogenic

0.89

D;D;D

MetaSVM

Pathogenic

0.88

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-7.4

D;D;D

REVEL

Pathogenic

0.92

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

.;D;D

Vest4

0.91

MVP

0.99

MPC

0.65

ClinPred

0.99

GERP RS

4.9

Varity_R

0.87

gMVP

0.92

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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