1-54758031-A-AG
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Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5
The NM_152268.4(PARS2):c.1130_1131insC(p.Lys378Ter) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,613,800 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )
Consequence
PARS2
NM_152268.4 frameshift
NM_152268.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 9.81
Genes affected
PARS2 (HGNC:30563): (prolyl-tRNA synthetase 2, mitochondrial) This gene encodes a putative member of the class II family of aminoacyl-tRNA synthetases. These enzymes play a critical role in protein biosynthesis by charging tRNAs with their cognate amino acids. This protein is encoded by the nuclear genome but is likely to be imported to the mitochondrion where it is thought to catalyze the ligation of proline to tRNA molecules. Mutations have been found in this gene in some patients with Alpers syndrome. [provided by RefSeq, Mar 2015]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.209 CDS is truncated, and there are 1 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-54758031-A-AG is Pathogenic according to our data. Variant chr1-54758031-A-AG is described in ClinVar as [Pathogenic]. Clinvar id is 183148.Status of the report is no_assertion_criteria_provided, 0 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PARS2 | NM_152268.4 | c.1130_1131insC | p.Lys378Ter | frameshift_variant | 2/2 | ENST00000371279.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PARS2 | ENST00000371279.4 | c.1130_1131insC | p.Lys378Ter | frameshift_variant | 2/2 | 1 | NM_152268.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 151992Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251144Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135726
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GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461808Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4AN XY: 727196
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GnomAD4 genome AF: 0.00000658 AC: 1AN: 151992Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74232
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Developmental and epileptic encephalopathy, 75 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jan 01, 2015 | - - |
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at