17-1650819-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP2PP3_ModeratePP5

The NM_006445.4(PRPF8):​c.6991G>A​(p.Glu2331Lys) variant causes a missense change. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PRPF8
NM_006445.4 missense

Scores

11
7
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 5.92
Variant links:
Genes affected
PRPF8 (HGNC:17340): (pre-mRNA processing factor 8) Pre-mRNA splicing occurs in 2 sequential transesterification steps. The protein encoded by this gene is a component of both U2- and U12-dependent spliceosomes, and found to be essential for the catalytic step II in pre-mRNA splicing process. It contains several WD repeats, which function in protein-protein interactions. This protein has a sequence similarity to yeast Prp8 protein. This gene is a candidate gene for autosomal dominant retinitis pigmentosa. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a region_of_interest Required for interaction with EFTUD2 and SNRNP200 (size 34) in uniprot entity PRP8_HUMAN there are 30 pathogenic changes around while only 0 benign (100%) in NM_006445.4
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PRPF8. . Gene score misZ 8.2838 (greater than the threshold 3.09). Trascript score misZ 11.324 (greater than threshold 3.09). GenCC has associacion of gene with neurodevelopmental disorder, retinitis pigmentosa 13, inherited retinal dystrophy, retinitis pigmentosa.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.869
PP5
Variant 17-1650819-C-T is Pathogenic according to our data. Variant chr17-1650819-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 803296.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRPF8NM_006445.4 linkuse as main transcriptc.6991G>A p.Glu2331Lys missense_variant 43/43 ENST00000304992.11 NP_006436.3 Q6P2Q9
PRPF8XM_024450537.2 linkuse as main transcriptc.6991G>A p.Glu2331Lys missense_variant 43/43 XP_024306305.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PRPF8ENST00000304992.11 linkuse as main transcriptc.6991G>A p.Glu2331Lys missense_variant 43/431 NM_006445.4 ENSP00000304350.6 Q6P2Q9

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461838
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727214
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Retinitis pigmentosa 13 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingMendelicsMay 28, 2019- -
Retinal dystrophy Uncertain:1
Uncertain significance, criteria provided, single submitterresearchDept Of Ophthalmology, Nagoya UniversityOct 01, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.72
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.47
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.94
D;D
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
.;D
M_CAP
Pathogenic
0.85
D
MetaRNN
Pathogenic
0.87
D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
3.1
M;M
PrimateAI
Pathogenic
0.86
D
PROVEAN
Uncertain
-2.4
N;.
REVEL
Pathogenic
0.79
Sift
Uncertain
0.023
D;.
Sift4G
Uncertain
0.037
D;D
Polyphen
0.88
P;P
Vest4
0.55
MutPred
0.61
Gain of ubiquitination at E2331 (P = 0.006);Gain of ubiquitination at E2331 (P = 0.006);
MVP
0.97
MPC
0.78
ClinPred
0.97
D
GERP RS
4.9
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
3.1
Varity_R
0.96
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs1597223220; hg19: chr17-1554113; API