congenital disorder of glycosylation Iq

Summary
Synonym
  • congenital disorder of glycosylation 1q
Definition
A congenital disorder of glycosylation I that is characterized by a highly variable phenotype typically presenting with severe visual impairment, variable ocular anomalies (such as optic nerve hypoplasia/atrophy, iris and optic nerve coloboma, congenital cataract, glaucoma), intellectual disability, cerebellar abnormalities, nystagmus, hypotonia, ataxia, and/or ichthyosiform skin lesions and has_material_basis_in homozygous or compound heterozygous mutation in the SRD5A3 gene on chromosome 4q12.
Super Class
autosomal recessive disease congenital disorder of glycosylation type I
Disease Ontology
DOID:0080568
Mondo Disease Ontology
ORDO
GARD
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
79644 SRD5A3 steroid 5 alpha-reductase 3
The Human Phenotype Ontology
Displaying entries 11 - 20 of 55 in total
HPO ID HPO Term
HP:0000639 Nystagmus
HP:0007766 Optic disc hypoplasia
HP:0001250 Seizure
HP:0030680 Abnormal cardiovascular system morphology
HP:0001317 Abnormal cerebellum morphology
HP:0000824 Decreased response to growth hormone stimulation test
HP:0002910 Elevated circulating hepatic transaminase concentration
HP:0000365 Hearing impairment
HP:0001595 Abnormal hair morphology
HP:0000518 Cataract
Displaying 1 entry
Gene ID Gene Symbol Description
79644 SRD5A3 steroid 5 alpha-reductase 3

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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