rs587778878
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_000235.4(LIPA):c.260G>T(p.Gly87Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_000235.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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LIPA | NM_000235.4 | c.260G>T | p.Gly87Val | missense_variant | Exon 4 of 10 | ENST00000336233.10 | NP_000226.2 | |
LIPA | NM_001127605.3 | c.260G>T | p.Gly87Val | missense_variant | Exon 4 of 10 | NP_001121077.1 | ||
LIPA | XM_024448023.2 | c.260G>T | p.Gly87Val | missense_variant | Exon 4 of 10 | XP_024303791.1 | ||
LIPA | NM_001288979.2 | c.-89G>T | 5_prime_UTR_variant | Exon 2 of 8 | NP_001275908.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00 AC: 0AN: 152168Hom.: 0 Cov.: 33 FAILED QC
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251368Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135856
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461876Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727242
GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 152168Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74332
ClinVar
Submissions by phenotype
Lysosomal acid lipase deficiency Pathogenic:4Other:1
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not provided Pathogenic:2
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Published functional studies demonstrate a damaging effect due to significantly reduced enzyme activity compared to wildtype (Pagani et al., 1998; Zschenker et al., 2001; Vinje et al., 2018; Vinje et al., 2019); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 26225414, 23424026, 11441129, 28374935, 31589614, 8894696, 31131398, 22138108, 30684275, 9684740, 33857477, 29196158, 21291321) -
Cholesteryl ester storage disease Pathogenic:2
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Cholesteryl ester storage disease;C0043208:Wolman disease Pathogenic:1
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Wolman disease Pathogenic:1
This sequence change replaces glycine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 87 of the LIPA protein (p.Gly87Val). This variant is present in population databases (rs587778878, gnomAD 0.003%). This missense change has been observed in individuals with cholesteryl ester storage disease (CESD) or Wolman disease (PMID: 2129132, 8894696, 11441129, 23424026, 28374935). ClinVar contains an entry for this variant (Variation ID: 88770). 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 LIPA protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects LIPA function (PMID: 9684740, 11441129). 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