mucopolysaccharidosis type IIIC

Summary
Synonym
  • Acetyl-CoA alpha-glucosaminide acetyltransferase deficiency
  • HGSNAT deficiency
  • Heparan-alpha-glucosaminide N-acetyltransferase deficiency
  • MPS3C
  • MPSIIIC
  • Mucopolysaccharidosis type 3C
  • Sanfilippo syndrome type C
  • mucopolysaccharidosis type IIIC (Sanfilippo C)
Definition
A mucopolysaccharidosis III that has_material_basis_in homozygous or compound heterozygous mutation in the HGSNAT gene on chromosome 8p11.2-p11.1.
Super Class
autosomal recessive disease mucopolysaccharidosis III
Disease Ontology
DOID:0111393
Mondo Disease Ontology
MeSH
UMLS
NCI Thesaurus
ORDO
GARD
Related Genes
Displaying all 3 entries
Gene ID Gene Symbol Description Source
2799 GNS glucosamine (N-acetyl)-6-sulfatase
6448 SGSH N-sulfoglucosamine sulfohydrolase
138050 HGSNAT heparan-alpha-glucosaminide N-acetyltransferase
The Human Phenotype Ontology
Displaying entries 11 - 20 of 37 in total
HPO ID HPO Term
HP:0002240 Hepatomegaly
HP:0000900 Thickened ribs
HP:0001387 Joint stiffness
HP:0000007 Autosomal recessive inheritance
HP:0000943 Dysostosis multiplex
HP:0001507 Growth abnormality
HP:0000250 Dense calvaria
HP:0002015 Dysphagia
HP:0000510 Rod-cone dystrophy
HP:0001250 Seizure
Displaying 1 entry
Gene ID Gene Symbol Description
138050 HGSNAT heparan-alpha-glucosaminide N-acetyltransferase

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: December 8, 2025