rs199476376
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PM5PP3_ModeratePP5
The NM_000487.6(ARSA):c.1195C>T(p.His399Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,264 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H399Q) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000487.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ARSA | NM_000487.6 | c.1195C>T | p.His399Tyr | missense_variant | 7/8 | ENST00000216124.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ARSA | ENST00000216124.10 | c.1195C>T | p.His399Tyr | missense_variant | 7/8 | 1 | NM_000487.6 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 34
GnomAD3 exomes AF: 0.00000797 AC: 2AN: 251068Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135854
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461264Hom.: 0 Cov.: 58 AF XY: 0.00000413 AC XY: 3AN XY: 726942
GnomAD4 genome ? Cov.: 34
ClinVar
Submissions by phenotype
Metachromatic leukodystrophy Pathogenic:1Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | Jan 12, 2018 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Sep 29, 2023 | This sequence change replaces histidine, which is basic and polar, with tyrosine, which is neutral and polar, at codon 399 of the ARSA protein (p.His399Tyr). This variant is present in population databases (rs199476376, gnomAD 0.0009%). This missense change has been observed in individual(s) with metachromatic leukodystrophy (MLD) (PMID: 9452102, 20339381, 28762252). This variant is also known as 1189C>T or H397Y. ClinVar contains an entry for this variant (Variation ID: 68117). 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 ARSA protein function. Experimental studies have shown that this missense change affects ARSA function (PMID: 9452102, 28762252). For these reasons, this variant has been classified as Pathogenic. - |
not provided Other:1
not provided, no classification provided | literature only | UniProtKB/Swiss-Prot | - | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at