congenital disorder of glycosylation Ia

Summary
Synonym
  • PMM2-congenital disorder of glycosylation
  • congenital disorder of glycosylation 1a
Definition
A congenital disorder of glycosylation I that is characterized by a severe encephalopathy with axial hypotonia, abnormal eye movement, pronounced psychomotor retardation, peripheral neuropathy, cerebellar hypoplasia, and retinitis pigmentosa and has_material_basis_in homozygous or compound heterozygous mutation in the gene encoding phosphomannomutase-2 on chromosome 16p13.
Super Class
autosomal recessive disease congenital disorder of glycosylation type I
Disease Ontology
DOID:0080552
Mondo Disease Ontology
ORDO
GARD
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
850499 SEC53 phosphomannomutase SEC53
The Human Phenotype Ontology
Displaying entries 11 - 20 of 131 in total
HPO ID HPO Term
HP:0000303 Mandibular prognathia
HP:0000316 Hypertelorism
HP:0000343 Long philtrum
HP:0000377 Abnormal pinna morphology
HP:0000400 Macrotia
HP:0000426 Prominent nasal bridge
HP:0000448 Prominent nose
HP:0000463 Anteverted nares
HP:0000486 Strabismus
HP:0000510 Rod-cone dystrophy
Displaying 1 entry
Gene ID Gene Symbol Description
5373 PMM2 phosphomannomutase 2

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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