rs141195622
Positions:
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7
The NM_001195248.2(APTX):āc.742T>Cā(p.Leu248=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: not found (cov: 32)
Exomes š: 6.8e-7 ( 0 hom. )
Consequence
APTX
NM_001195248.2 synonymous
NM_001195248.2 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.02
Genes affected
APTX (HGNC:15984): (aprataxin) This gene encodes a member of the histidine triad (HIT) superfamily. The encoded protein may play a role in single-stranded DNA repair through its nucleotide-binding activity and its diadenosine polyphosphate hydrolase activity. Mutations in this gene have been associated with ataxia-ocular apraxia. Alternatively spliced transcript variants have been identified for this gene.[provided by RefSeq, Aug 2010]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP7
?
Synonymous conserved (PhyloP=-1.02 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
APTX | NM_001195248.2 | c.742T>C | p.Leu248= | synonymous_variant | 6/8 | ENST00000379817.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
APTX | ENST00000379817.7 | c.742T>C | p.Leu248= | synonymous_variant | 6/8 | 1 | NM_001195248.2 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
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32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251318Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135826
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GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461890Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 727246
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GnomAD4 genome ? Cov.: 32
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Ataxia, early-onset, with oculomotor apraxia and hypoalbuminemia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
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