rs375185166
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Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_002582.4(PARN):c.1513C>T(p.Arg505Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,611,340 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )
Consequence
PARN
NM_002582.4 missense
NM_002582.4 missense
Scores
2
11
6
Clinical Significance
Conservation
PhyloP100: 3.30
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PARN | NM_002582.4 | c.1513C>T | p.Arg505Trp | missense_variant | 22/24 | ENST00000437198.7 | NP_002573.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
PARN | ENST00000437198.7 | c.1513C>T | p.Arg505Trp | missense_variant | 22/24 | 1 | NM_002582.4 | ENSP00000387911.2 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152024Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000203 AC: 5AN: 246048Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 133468
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GnomAD4 exome AF: 0.0000171 AC: 25AN: 1459316Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12AN XY: 725936
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152024Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74238
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics | Nov 02, 2016 | - - |
Pulmonary fibrosis and/or bone marrow failure, Telomere-related, 4;C4225356:Dyskeratosis congenita, autosomal recessive 6 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 29, 2024 | This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 505 of the PARN protein (p.Arg505Trp). This variant is present in population databases (rs375185166, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with PARN-related conditions. ClinVar contains an entry for this variant (Variation ID: 377216). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PARN protein function with a positive predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Benign
T;.;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Pathogenic
D;D;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D
MetaSVM
Benign
T
MutationAssessor
Benign
L;.;.;.
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;D;D;D
REVEL
Uncertain
Sift
Uncertain
D;D;D;D
Sift4G
Uncertain
D;D;D;D
Polyphen
D;.;.;.
Vest4
MVP
MPC
ClinPred
D
GERP RS
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gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at