2-29071493-GTCCAGGGCTGGCT-G

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_001029883.3(PCARE):​c.2756_2768delAGCCAGCCCTGGA​(p.Lys919ThrfsTer2) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,458,330 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PCARE
NM_001029883.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 2.36

Publications

1 publications found
Variant links:
Genes affected
PCARE (HGNC:34383): (photoreceptor cilium actin regulator) The protein encoded by this gene is highly expressed in photoreceptors and may associate with the primary cilium of the outer segment. The encoded protein appears to undergo post-translational lipid modification. Nonsense and missense variants of this gene appear to cause a recessive form of retinitis pigmentosa. [provided by RefSeq, Jun 2010]
PCARE Gene-Disease associations (from GenCC):
  • PCARE-related retinopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • retinitis pigmentosa 54
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 2-29071493-GTCCAGGGCTGGCT-G is Pathogenic according to our data. Variant chr2-29071493-GTCCAGGGCTGGCT-G is described in ClinVar as Pathogenic. ClinVar VariationId is 105.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCARENM_001029883.3 linkc.2756_2768delAGCCAGCCCTGGA p.Lys919ThrfsTer2 frameshift_variant Exon 1 of 2 ENST00000331664.6 NP_001025054.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCAREENST00000331664.6 linkc.2756_2768delAGCCAGCCCTGGA p.Lys919ThrfsTer2 frameshift_variant Exon 1 of 2 2 NM_001029883.3 ENSP00000332809.4 A6NGG8
ENSG00000308575ENST00000835145.1 linkn.224+2330_224+2342delAGGGCTGGCTTCC intron_variant Intron 2 of 2
ENSG00000308575ENST00000835146.1 linkn.207+2330_207+2342delAGGGCTGGCTTCC intron_variant Intron 2 of 2
ENSG00000308575ENST00000835147.1 linkn.171+2330_171+2342delAGGGCTGGCTTCC intron_variant Intron 2 of 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1458330
Hom.:
0
AF XY:
0.00000413
AC XY:
3
AN XY:
725606
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50044
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5748
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111920
Other (OTH)
AF:
0.00
AC:
0
AN:
60352
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Aug 17, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ClinVar contains an entry for this variant (Variation ID: 105). For these reasons, this variant has been classified as Pathogenic. This premature translational stop signal has been observed in individual(s) with PCARE-related conditions (PMID: 20398884, 28763557). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Lys919Thrfs*2) in the PCARE gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PCARE are known to be pathogenic (PMID: 20398886, 24339724, 26496393). -

Aug 01, 2018
CeGaT Center for Human Genetics Tuebingen
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 17, 2021
Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive retinitis pigmentosa Pathogenic:1
Aug 01, 2017
Faculty of Health Sciences, Beirut Arab University
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Retinal dystrophy Pathogenic:1
Jan 01, 2021
Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Retinitis pigmentosa 54 Pathogenic:1
May 14, 2010
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Retinitis pigmentosa Pathogenic:1
Jun 23, 2019
Sharon lab, Hadassah-Hebrew University Medical Center
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
2.4
Mutation Taster
=8/192
disease causing (ClinVar)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs794728002; hg19: chr2-29294359; API