rs199422227

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1_StrongPM2PP5_Very_Strong

The NM_000202.8(IDS):​c.1327C>T​(p.Arg443Ter) 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 (★★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)

Consequence

IDS
NM_000202.8 stop_gained

Scores

2
1
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:9

Conservation

PhyloP100: 0.555
Variant links:
Genes affected
IDS (HGNC:5389): (iduronate 2-sulfatase) This gene encodes a member of the sulfatase family of proteins. The encoded preproprotein is proteolytically processed to generate two polypeptide chains. This enzyme is involved in the lysosomal degradation of heparan sulfate and dermatan sulfate. Mutations in this gene are associated with the X-linked lysosomal storage disease mucopolysaccharidosis type II, also known as Hunter syndrome. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 14 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-149483072-G-A is Pathogenic according to our data. Variant chrX-149483072-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 10486.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-149483072-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IDSNM_000202.8 linkuse as main transcriptc.1327C>T p.Arg443Ter stop_gained 9/9 ENST00000340855.11 NP_000193.1
IDSNM_001166550.4 linkuse as main transcriptc.1057C>T p.Arg353Ter stop_gained 9/9 NP_001160022.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IDSENST00000340855.11 linkuse as main transcriptc.1327C>T p.Arg443Ter stop_gained 9/91 NM_000202.8 ENSP00000339801 P1P22304-1

Frequencies

GnomAD3 genomes
AF:
0.00000897
AC:
1
AN:
111468
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33662
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
30
GnomAD4 genome
AF:
0.00000897
AC:
1
AN:
111520
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33724
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000188
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000105
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Mucopolysaccharidosis, MPS-II Pathogenic:7
Pathogenic, criteria provided, single submitterclinical testingGenome-Nilou LabSep 05, 2021- -
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 01, 1993- -
Pathogenic, no assertion criteria providedresearchBeijing Key Laboratory for Genetic Research of Skeletal Deformity, Peking Union Medical College HospitalMay 31, 2019- -
Pathogenic, criteria provided, single submitterresearchIIFP, CONICET-UNLPDec 13, 2012- -
Pathogenic, criteria provided, single submitterliterature onlyLaboratory of Diagnosis and Therapy of Lysosomal Disorders, University of PadovaJun 07, 2024Null 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) -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 29, 2023For these reasons, this variant has been classified as Pathogenic. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 10486). This premature translational stop signal has been observed in individuals with mucopolysaccharidosis II (PMID: 1303211, 18500569, 21291454, 21829674, 27146977). This variant is not present in population databases (gnomAD no frequency). 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. -
Pathogenic, criteria provided, single submitterclinical testingDepartment of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences-- -
Mucopolysaccharidosis, MPS-III-A Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Dec 08, 2020- -
See cases Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInstitute of Human Genetics, University Hospital MuensterDec 20, 2021ACMG categories: PVS1,PM2,PP5 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.74
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
32
DANN
Uncertain
0.99
FATHMM_MKL
Benign
0.17
N
MutationTaster
Benign
1.0
A;A;A
Vest4
0.57
GERP RS
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs199422227; hg19: chrX-148564603; COSMIC: COSV61712686; COSMIC: COSV61712686; API