chr16-1361875-CAAGTAT-C
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM4PP3PP5
The NM_032520.5(GNPTG):c.238_243delAAGTAT(p.Lys80_Tyr81del) variant causes a conservative inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000663 in 1,613,808 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_032520.5 conservative_inframe_deletion
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000788 AC: 12AN: 152206Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000239 AC: 6AN: 251194Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135830
GnomAD4 exome AF: 0.0000650 AC: 95AN: 1461602Hom.: 0 AF XY: 0.0000591 AC XY: 43AN XY: 727122
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152206Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74354
ClinVar
Submissions by phenotype
GNPTG-mucolipidosis Pathogenic:2Uncertain:1
NM_032520.4(GNPTG):c.238_243del6(K80_Y81del) is an in-frame deletion classified as a variant of uncertain significance in the context of mucolipidosis III gamma. K80_Y81del has been observed in cases with relevant disease (PMID: 21792934). Functional assessments of this variant are not available in the literature. K80_Y81del has been observed in population frequency databases (gnomAD: EAS 0.01%). In summary, there is insufficient evidence to classify NM_032520.4(GNPTG):c.238_243del6(K80_Y81del) as pathogenic or benign. Please note: this variant was assessed in the context of healthy population screening. -
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not provided Pathogenic:1
This variant, c.238_243del, results in the deletion of 2 amino acid(s) of the GNPTG protein (p.Lys80_Tyr81del), but otherwise preserves the integrity of the reading frame. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has been observed in individual(s) with mucolipidosis III gamma (PMID: 21792934). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 550212). For these reasons, this variant has been classified as Pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at