Seroatlas · Human Serome Atlas

IDS

Iduronate 2-sulfatase

Also known as: ID2S, IDS_HUMAN, SIDS

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P22304
Gene
IDS
Ensembl
ENSG00000010404
Chromosome
X
Canonical length
550 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
Secretome location
Intracellular and membrane

OverviewNCBI Gene

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]

Canonical amino-acid sequenceUniProt

550 residues, UniProt reviewed canonical sequence.

>P22304|IDS
     1  MPPPRTGRGL LWLGLVLSSV CVALGSETQA NSTTDALNVL LIIVDDLRPS LGCYGDKLVR
    61  SPNIDQLASH SLLFQNAFAQ QAVCAPSRVS FLTGRRPDTT RLYDFNSYWR VHAGNFSTIP
   121  QYFKENGYVT MSVGKVFHPG ISSNHTDDSP YSWSFPPYHP SSEKYENTKT CRGPDGELHA
   181  NLLCPVDVLD VPEGTLPDKQ STEQAIQLLE KMKTSASPFF LAVGYHKPHI PFRYPKEFQK
   241  LYPLENITLA PDPEVPDGLP PVAYNPWMDI RQREDVQALN ISVPYGPIPV DFQRKIRQSY
   301  FASVSYLDTQ VGRLLSALDD LQLANSTIIA FTSDHGWALG EHGEWAKYSN FDVATHVPLI
   361  FYVPGRTASL PEAGEKLFPY LDPFDSASQL MEPGRQSMDL VELVSLFPTL AGLAGLQVPP
   421  RCPVPSFHVE LCREGKNLLK HFRFRDLEED PYLPGNPREL IAYSQYPRPS DIPQWNSDKP
   481  SLKDIKIMGY SIRTIDYRYT VWVGFNPDEF LANFSDIHAG ELYFVDSDPL QDHNMYNDSQ
   541  GGDLFQLLMP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against IDS can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.24
Highest tissue expression
432 nTPM

Expression across tissuesHPA

Tissue

  • cerebral cortex: 432 nTPM
  • amygdala: 317 nTPM
  • hippocampal formation: 299 nTPM
  • basal ganglia: 258 nTPM
  • hypothalamus: 144 nTPM
  • midbrain: 120 nTPM

Single-cell type

  • brain inhibitory neurons: 262 nCPM
  • brain excitatory neurons: 223 nCPM
  • other brain neurons: 217 nCPM
  • ependymal cells: 107 nCPM
  • oligodendrocytes: 71 nCPM
  • choroid plexus epithelial cells: 68 nCPM

Immune cell

  • neutrophil: 262 nTPM
  • eosinophil: 172 nTPM
  • basophil: 118 nTPM
  • T-reg: 74 nTPM
  • non-classical monocyte: 74 nTPM
  • gdT-cell: 71 nTPM

Brain region

  • hippocampal formation: 1,088 nTPM
  • cerebral cortex: 1,085 nTPM
  • basal ganglia: 828 nTPM
  • amygdala: 825 nTPM
  • white matter: 629 nTPM
  • hypothalamus: 486 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about IDS.

Disease | AllUniProt

Conditions IDS is implicated in, by any mechanism.

Disease | GeneticClinVar

796 pathogenic / likely-pathogenic of 1,505 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.18
gnomAD pLI
1
gnomAD missense Z
1.58
DepMap mean gene effect
-0.01
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads IDS as an antibody target. Whether an autoantibody or antibody against IDS could matter depends on whether native IDS is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

IDS is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label IDS as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/IDS. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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