rs267606874
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5
The NM_016247.4(IMPG2):c.635C>G(p.Ser212Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. 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 Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
IMPG2
NM_016247.4 stop_gained
NM_016247.4 stop_gained
Scores
3
3
1
Clinical Significance
Conservation
PhyloP100: 1.88
Genes affected
IMPG2 (HGNC:18362): (interphotoreceptor matrix proteoglycan 2) The protein encoded by this gene binds chondroitin sulfate and hyaluronan and is a proteoglycan. The encoded protein plays a role in the organization of the interphotoreceptor matrix and may promote the growth and maintenance of the light-sensitive photoreceptor outer segment. Defects in this gene are a cause of retinitis pigmentosa type 56 and maculopathy, IMPG2-related.[provided by RefSeq, Mar 2011]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 11 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 3-101275694-G-C is Pathogenic according to our data. Variant chr3-101275694-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 3546.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr3-101275694-G-C is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
IMPG2 | NM_016247.4 | c.635C>G | p.Ser212Ter | stop_gained | 6/19 | ENST00000193391.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
IMPG2 | ENST00000193391.8 | c.635C>G | p.Ser212Ter | stop_gained | 6/19 | 1 | NM_016247.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Retinitis pigmentosa 56 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Aug 13, 2010 | - - |
Retinitis pigmentosa Pathogenic:1
Pathogenic, no assertion criteria provided | research | Sharon lab, Hadassah-Hebrew University Medical Center | Jun 23, 2019 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
A
Vest4
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at