rs751381953

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_002582.4(PARN):​c.246-2A>G variant causes a splice acceptor change. The variant allele was found at a frequency of 0.000000694 in 1,440,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

PARN
NM_002582.4 splice_acceptor

Scores

4
2
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 6.73
Variant links:
Genes affected
PARN (HGNC:8609): (poly(A)-specific ribonuclease) The protein encoded by this gene is a 3'-exoribonuclease, with similarity to the RNase D family of 3'-exonucleases. It prefers poly(A) as the substrate, hence, efficiently degrades poly(A) tails of mRNAs. Exonucleolytic degradation of the poly(A) tail is often the first step in the decay of eukaryotic mRNAs. This protein is also involved in silencing of certain maternal mRNAs during oocyte maturation and early embryonic development, as well as in nonsense-mediated decay (NMD) of mRNAs that contain premature stop codons. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-14627189-T-C is Pathogenic according to our data. Variant chr16-14627189-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 190468.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PARNNM_002582.4 linkuse as main transcriptc.246-2A>G splice_acceptor_variant ENST00000437198.7 NP_002573.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PARNENST00000437198.7 linkuse as main transcriptc.246-2A>G splice_acceptor_variant 1 NM_002582.4 ENSP00000387911 P1O95453-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000425
AC:
1
AN:
235410
Hom.:
0
AF XY:
0.00000786
AC XY:
1
AN XY:
127288
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000943
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.94e-7
AC:
1
AN:
1440182
Hom.:
0
Cov.:
26
AF XY:
0.00000140
AC XY:
1
AN XY:
716730
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:
9.13e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000828
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Pulmonary fibrosis Pathogenic:1
Pathogenic, criteria provided, single submitterresearchGarcia Pulmonary Genetics Research Laboratory, Columbia University Irving Medical CenterJun 09, 2022Pathogenic criteria: null variant (PVS1) with functional study supportive of damaging effect (PS3): leukocyte telomere length (by qPCR) less than 10th percentile age-adjusted -
Pulmonary fibrosis and/or bone marrow failure, Telomere-related, 4 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 01, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
30
DANN
Uncertain
0.99
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Uncertain
0.95
D
MutationTaster
Benign
1.0
D;D;D;D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.93
SpliceAI score (max)
0.99
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.99
Position offset: -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: rs751381953; hg19: chr16-14721046; API