Genetic Variant IDS:p.Asp532Gly (chrX-149482804-T-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000202.8(IDS):c.1595A>G(p.Asp532Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 112,179 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D532V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 23)

Consequence

IDS
NM_000202.8 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.83

Publications

1 publications found

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]

IDS Gene-Disease associations (from GenCC):

mucopolysaccharidosis type 2
Inheritance: 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 form
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
mucopolysaccharidosis type 2, severe form
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

IDS links:

ENSG00000241489 (HGNC:):

ENSG00000241489 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 3 uncertain in NM_000202.8

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.852

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IDS	NM_000202.8 link	c.1595A>G	p.Asp532Gly	missense_variant	Exon 9 of 9	ENST00000340855.11	NP_000193.1	P22304-1
IDS	NM_001166550.4 link	c.1325A>G	p.Asp442Gly	missense_variant	Exon 9 of 9		NP_001160022.1	P22304B4DGD7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
IDS	ENST00000340855.11 link	c.1595A>G	p.Asp532Gly	missense_variant	Exon 9 of 9	1	NM_000202.8	ENSP00000339801.6	P22304-1
ENSG00000241489	ENST00000651111.1 link	c.962A>G	p.Asp321Gly	missense_variant	Exon 14 of 14			ENSP00000498395.1	B3KWA1
ENSG00000241489	ENST00000422081.6 link	c.962A>G	p.Asp321Gly	missense_variant	Exon 9 of 9	2		ENSP00000477056.1	B3KWA1

Frequencies

GnomAD3 genomes

AF:

0.0000268

AC:

AN:

112127

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000649

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000372

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000267

AC:

AN:

112179

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34365

show subpopulations

African (AFR)

AF:

0.0000647

AC:

AN:

30894

American (AMR)

AF:

0.00

AC:

AN:

10622

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2658

East Asian (EAS)

AF:

0.00

AC:

AN:

3578

South Asian (SAS)

AF:

0.000373

AC:

AN:

2680

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6086

Middle Eastern (MID)

AF:

0.00

AC:

AN:

217

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53222

Other (OTH)

AF:

0.00

AC:

AN:

1535

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Pathogenic

0.48

BayesDel_noAF

Pathogenic

0.46

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

D;.

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

D;D

M_CAP

Pathogenic

0.86

MetaRNN

Pathogenic

0.85

D;D

MetaSVM

Pathogenic

0.98

MutationAssessor

Pathogenic

3.1

M;.

PhyloP100

6.8

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.4

D;.

REVEL

Pathogenic

0.77

Sift

Uncertain

0.020

D;.

Sift4G

Uncertain

0.040

D;D

Polyphen

1.0

D;.

Vest4

0.75

MutPred

0.34

Loss of disorder (P = 0.1219);.;

MVP

1.0

MPC

0.85

ClinPred

0.99

GERP RS

4.6

Varity_R

0.79

gMVP

0.81

Mutation Taster

=39/61

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over