rs199422227
Variant summary
Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_000202.8(IDS):c.1327C>T(p.Arg443*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000897 in 111,520 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R443R) has been classified as Benign.
Frequency
Consequence
NM_000202.8 stop_gained
Scores
Clinical Significance
Conservation
Publications
- mucopolysaccharidosis type 2Inheritance: XL, AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, PanelApp Australia, Myriad Women’s Health
- mucopolysaccharidosis type 2, attenuated formInheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
- mucopolysaccharidosis type 2, severe formInheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Pathogenic. The variant received 18 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| IDS | ENST00000340855.11 | c.1327C>T | p.Arg443* | stop_gained | Exon 9 of 9 | 1 | NM_000202.8 | ENSP00000339801.6 | ||
| ENSG00000241489 | ENST00000651111.1 | c.694C>T | p.Arg232* | stop_gained | Exon 14 of 14 | ENSP00000498395.1 | ||||
| ENSG00000241489 | ENST00000422081.6 | c.694C>T | p.Arg232* | stop_gained | Exon 9 of 9 | 2 | ENSP00000477056.1 | |||
| ENSG00000241489 | ENST00000441880.1 | n.*18C>T | downstream_gene_variant | 2 |
Frequencies
GnomAD3 genomes AF: 0.00000897 AC: 1AN: 111468Hom.: 0 Cov.: 22 show subpopulations
GnomAD4 exome Cov.: 30
GnomAD4 genome AF: 0.00000897 AC: 1AN: 111520Hom.: 0 Cov.: 22 AF XY: 0.00 AC XY: 0AN XY: 33724 show subpopulations
ClinVar
Submissions by phenotype
Mucopolysaccharidosis, MPS-II Pathogenic:7
ClinVar contains an entry for this variant (Variation ID: 10486). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. For these reasons, this variant has been classified as Pathogenic. This premature translational stop signal has been observed in individuals with mucopolysaccharidosis II (PMID: 1303211, 18500569, 21291454, 21829674, 27146977). This sequence change creates a premature translational stop signal (p.Arg443*) in the IDS gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 108 amino acid(s) of the IDS protein. This variant is not present in population databases (gnomAD no frequency). -
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Null variant (PVS1_Strong), In vitro or in vivo functional studies supportive of a damaging effect (PS3_Moderate), Prevalence of the variant significantly increased in affected individuals compared with controls (PS4_Strong), Absent from controls (or at low frequency) in gnomAD database (PM2_Moderate), Cosegregation with disease in multiple affected family members (PP1_Moderate), Patient’s phenotype or family history highly specific for the disease (PP4_Moderate) -
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Mucopolysaccharidosis, MPS-III-A Pathogenic:1
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See cases Pathogenic:1
ACMG categories: PVS1,PM2,PP5 -
not provided Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at