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 GGDLFQLLMPLocalizationUniProt · 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.
- Mucopolysaccharidosis 2 (MPS2) MIM:309900
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
- dermatan sulfate proteoglycan catabolic process
- glycosaminoglycan catabolic process
- heparan sulfate proteoglycan catabolic process
Molecular functions
- calcium ion binding
- iduronate-2-sulfatase activity
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.
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