rs2066796760

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000328.3(RPGR):c.2393A>T(p.Gln798Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,207,656 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

RPGR
NM_000328.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0580

Variant links:

Genes affected

ENSG00000250349 (HGNC:):

ENSG00000250349 links:

RPGR (HGNC:10295): (retinitis pigmentosa GTPase regulator) This gene encodes a protein with a series of six RCC1-like domains (RLDs), characteristic of the highly conserved guanine nucleotide exchange factors. The encoded protein is found in the Golgi body and interacts with RPGRIP1. This protein localizes to the outer segment of rod photoreceptors and is essential for their viability. Mutations in this gene have been associated with X-linked retinitis pigmentosa (XLRP). Multiple alternatively spliced transcript variants that encode different isoforms of this gene have been reported, but the full-length natures of only some have been determined. [provided by RefSeq, Dec 2008]

RPGR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08536655).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
RPGR	NM_000328.3 link	c.2393A>T	p.Gln798Leu	missense_variant	Exon 19 of 19	NP_000319.1	Q92834-2
RPGR	NM_001367245.1 link	c.2390A>T	p.Gln797Leu	missense_variant	Exon 19 of 19	NP_001354174.1
RPGR	NM_001367246.1 link	c.2207A>T	p.Gln736Leu	missense_variant	Exon 18 of 18	NP_001354175.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENSG00000250349	ENST00000465127.1 link	c.172-396440T>A		intron_variant	Intron 3 of 8	5		ENSP00000417050.1		B4E171

Frequencies

GnomAD3 genomes

AF:

0.00000893

AC:

AN:

111926

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34072

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000183

AC:

AN:

1095730

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

361234

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000238

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000893

AC:

AN:

111926

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34072

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000188

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1

Apr 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 798 of the RPGR protein (p.Gln798Leu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with RPGR-related conditions. 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 not expected to disrupt RPGR protein function with a negative predictive value of 95%. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.75

CADD

Benign

8.2

DANN

Benign

0.83

DEOGEN2

Benign

0.10

.;.;T;.;.

FATHMM_MKL

Benign

0.054

LIST_S2

Benign

0.30

.;T;T;T;T

M_CAP

Benign

0.0079

MetaRNN

Benign

0.085

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

.;.;L;.;.

PROVEAN

Uncertain

-2.4

N;.;D;.;.

REVEL

Benign

0.050

Sift

Benign

0.13

T;.;D;.;.

Sift4G

Uncertain

0.055

T;.;D;.;.

Polyphen

0.25

B;B;.;.;.

Vest4

0.20

MutPred

0.17

Loss of solvent accessibility (P = 0.0056);Loss of solvent accessibility (P = 0.0056);.;.;.;

MVP

0.043

ClinPred

0.082

GERP RS

-5.0

Varity_R

0.12

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

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