Seroatlas · Human Serome Atlas

HS2ST1

Heparan sulfate 2-O-sulfotransferase 1

Also known as: HS2ST_HUMAN, KIAA0448

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

Protein identityUniProt · HPA

UniProt accession
Q7LGA3
Gene
HS2ST1
Ensembl
ENSG00000153936
Chromosome
1
Canonical length
356 aa
Protein class
Disease related genes, Metabolic proteins, Predicted intracellular proteins
Subcellular location
Mitochondria
Quaternary structure
Homotrimer

OverviewNCBI Gene

Heparan sulfate biosynthetic enzymes are key components in generating a myriad of distinct heparan sulfate fine structures that carry out multiple biologic activities. This gene encodes a member of the heparan sulfate biosynthetic enzyme family that transfers sulfate to the 2 position of the iduronic acid residue of heparan sulfate. The disruption of this gene resulted in no kidney formation in knockout embryonic mice, indicating that the absence of this enzyme may interfere with the signaling required for kidney formation. Two alternatively spliced transcript variants that encode different proteins have been found for this gene. [provided by RefSeq, Aug 2008]

Canonical amino-acid sequenceUniProt

356 residues, UniProt reviewed canonical sequence.

>Q7LGA3|HS2ST1
     1  MGLLRIMMPP KLQLLAVVAF AVAMLFLENQ IQKLEESRSK LERAIARHEV REIEQRHTMD
    61  GPRQDATLDE EEDMVIIYNR VPKTASTSFT NIAYDLCAKN KYHVLHINTT KNNPVMSLQD
   121  QVRFVKNITS WKEMKPGFYH GHVSYLDFAK FGVKKKPIYI NVIRDPIERL VSYYYFLRFG
   181  DDYRPGLRRR KQGDKKTFDE CVAEGGSDCA PEKLWLQIPF FCGHSSECWN VGSRWAMDQA
   241  KYNLINEYFL VGVTEELEDF IMLLEAALPR FFRGATELYR TGKKSHLRKT TEKKLPTKQT
   301  IAKLQQSDIW KMENEFYEFA LEQFQFIRAH AVREKDGDLY ILAQNFFYEK IYPKSN

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against HS2ST1 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
Other membrane
Secreted
No
Transmembrane segments
1
Mean surface accessibility (rSASA)
0.33
Highest tissue expression
22 nTPM

Expression across tissuesHPA

Tissue

  • adrenal gland: 22 nTPM
  • liver: 15 nTPM
  • retina: 15 nTPM
  • ovary: 13 nTPM
  • cerebral cortex: 13 nTPM
  • parathyroid gland: 12 nTPM

Single-cell type

  • adrenal cortex cells: 316 nCPM
  • choroid plexus epithelial cells: 279 nCPM
  • astrocytes: 242 nCPM
  • rod photoreceptor cells: 189 nCPM
  • cone photoreceptor cells: 188 nCPM
  • neutrophils: 187 nCPM

Immune cell

  • basophil: 5.2 nTPM
  • non-classical monocyte: 2.9 nTPM
  • naive B-cell: 2.7 nTPM
  • memory CD8 T-cell: 1.4 nTPM
  • gdT-cell: 1.3 nTPM
  • MAIT T-cell: 1.3 nTPM

Brain region

  • basal ganglia: 28 nTPM
  • choroid plexus: 28 nTPM
  • cerebral cortex: 26 nTPM
  • hypothalamus: 25 nTPM
  • amygdala: 24 nTPM
  • midbrain: 23 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about HS2ST1.

Disease | AllUniProt

Conditions HS2ST1 is implicated in, by any mechanism.

Disease | GeneticClinVar

6 pathogenic / likely-pathogenic of 69 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Disease | ImmuneIEDB

Conditions an epitope on HS2ST1 was assayed in.

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)
0.47
gnomAD pLI
0.54
gnomAD missense Z
1.51
DepMap mean gene effect
-0.15
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

  • heparan sulfate 2-sulfotransferase activity

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of HS2ST1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads HS2ST1 as an antibody target. Whether an autoantibody or antibody against HS2ST1 could matter depends on whether native HS2ST1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

HS2ST1 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 HS2ST1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/HS2ST1. 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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