9-32974572-GAAA-GAAAAAAA

Variant names:

• chr9-32974572-G-GAAAA
• NM_001195248.2:c.771-15_771-12dupTTTT

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001195248.2(APTX):​c.771-15_771-12dupTTTT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000164 in 1,217,986 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 0)
  • Exomes 𝑓: 0.0000016 (0 hom.)
• Consequence: APTX NM_001195248.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0780

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APTX	NM_001195248.2	c.771-15_771-12dupTTTT		intron_variant	Intron 6 of 7	ENST00000379817.7	NP_001182177.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APTX	ENST00000379817.7	c.771-15_771-12dupTTTT		intron_variant	Intron 6 of 7	1	NM_001195248.2	ENSP00000369145.2

Frequencies

GnomAD3 genomes Cov.: 0

GnomAD4 exome AF: 0.00000164 AC: 2 AN: 1217986 Hom.: 0 Cov.: 22 AF XY: 0.00000325 AC XY: 2 AN XY: 615626

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: 0.00000220

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-32974570;