Crigler-Najjar syndrome

Summary
Synonym
  • Bilirubin UDP glucuronyl transferase deficiency
  • Crigler Najjar syndrome
  • Crigler-Najjar syndrome, type I
Definition
A bilirubin metabolic disorder that involves a build up of bilirubin as bilirubin is not being broken down as a result of a lack or deficiency of the enzyme uridine diphosphate glycosyltransferase (UGT).
Super Class
bilirubin metabolic disorder
Disease Ontology
DOID:3803
Mondo Disease Ontology
MeSH
UMLS
ORDO
MGI genotype (from TogoID)
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
54658 UGT1A1 UDP glucuronosyltransferase family 1 member A1
Displaying 1 entry
Gene ID Gene Symbol Description Source
24861 Ugt1a1 UDP glucuronosyltransferase family 1 member A1
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
P22309 UDP-glucuronosyltransferase 1A1
Displaying 1 entry
UniProt ID Protein Name Source
Q64550 UDP-glucuronosyltransferase 1A1
The Human Phenotype Ontology
Displaying entries 11 - 19 of 19 in total
HPO ID HPO Term
HP:0008282 Unconjugated hyperbilirubinemia
HP:0001250 Seizure
HP:0003265 Neonatal hyperbilirubinemia
HP:0001343 Kernicterus
HP:0000007 Autosomal recessive inheritance
HP:0000952 Jaundice
HP:0002910 Elevated circulating hepatic transaminase concentration
HP:0001298 Encephalopathy
HP:0003577 Congenital onset
Displaying 1 entry
Gene ID Gene Symbol Description
54658 UGT1A1 UDP glucuronosyltransferase family 1 member A1

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

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Last updated: August 4, 2025