rs1556313474

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The NM_006915.3(RP2):​c.43del​(p.Ser15ArgfsTer31) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 9.5e-7 ( 0 hom. 1 hem. )
Failed GnomAD Quality Control

Consequence

RP2
NM_006915.3 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 0.0460
Variant links:
Genes affected
RP2 (HGNC:10274): (RP2 activator of ARL3 GTPase) The RP2 locus has been implicated as one cause of X-linked retinitis pigmentosa. The predicted gene product shows homology with human cofactor C, a protein involved in the ultimate step of beta-tubulin folding. Progressive retinal degeneration may therefore be due to the accumulation of incorrectly-folded photoreceptor or neuron-specific tubulin isoforms followed by progressive cell death [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 7 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-46837142-GT-G is Pathogenic according to our data. Variant chrX-46837142-GT-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 437945.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-46837142-GT-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RP2NM_006915.3 linkuse as main transcriptc.43del p.Ser15ArgfsTer31 frameshift_variant 1/5 ENST00000218340.4 NP_008846.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RP2ENST00000218340.4 linkuse as main transcriptc.43del p.Ser15ArgfsTer31 frameshift_variant 1/51 NM_006915.3 ENSP00000218340 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
9.46e-7
AC:
1
AN:
1057079
Hom.:
0
Cov.:
30
AF XY:
0.00000289
AC XY:
1
AN XY:
345719
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:
0.00000122
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Abnormality of the eye Pathogenic:1
Likely pathogenic, no assertion criteria providedresearchNIHR Bioresource Rare Diseases, University of CambridgeJan 01, 2015Undetermined rare ocular disorder with frequency of less than eight patients -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs1556313474; hg19: chrX-46696577; API