developmental and epileptic encephalopathy 80

Summary
Synonym
  • DEE80
  • GPIBD20
  • early infantile epileptic encephalopathy 80
  • glycosylphosphatidylinositol biosynthesis defect 20
Definition
A developmental and epileptic encephalopathy characterized by onset in the first year of life of refractory seizures, severe global developmental delay, and defective synthesis of glycosylphosphatidylinositol that has_material_basis_in homozygous or compound heterozygous mutation in the PIGB gene on chromosome 15q21.3.
Super Class
autosomal recessive disease developmental and epileptic encephalopathy
Disease Ontology
DOID:0112216
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
9488 PIGB phosphatidylinositol glycan anchor biosynthesis class B
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
Q92521 GPI mannosyltransferase 3
The Human Phenotype Ontology
Displaying entries 11 - 20 of 46 in total
HPO ID HPO Term
HP:0000347 Micrognathia
HP:0000358 Posteriorly rotated ears
HP:0000365 Hearing impairment
HP:0000369 Low-set ears
HP:0000377 Abnormal pinna morphology
HP:0000396 Overfolded helix
HP:0000431 Wide nasal bridge
HP:0000505 Visual impairment
HP:0000520 Proptosis
HP:0000543 Optic disc pallor
Displaying 1 entry
Gene ID Gene Symbol Description
9488 PIGB phosphatidylinositol glycan anchor biosynthesis class B

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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: April 7, 2025