O-GlcNAc Transferase (OGT), encoded by the human OGT gene, is the sole enzyme responsible for adding O-GlcNAc modifications to proteins. Pathogenic variants in OGT have been linked to X-linked intellectual disability (XLID) and other congenital disorders. This page compiles clinically relevant single nucleotide variants of OGT, primarily sourced from ClinVar, with additional data from gnomAD, COSMIC, All of Us, GDC and Ensembl VEP.
Table of OGT variations: (4844 results*)
Variant counts may differ across databases: gnomAD limits gene view to coding exons ±75 bp, ClinVar includes all submitted variants, and COSMIC applies its own curation rules.
| Info | Protein Change | Mutation | Consequence | Condition (ClinVar) | Classification (Clinvar) | Patient report | PMIDs | Linkout |
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Missing a variant, or want to propose the OGT-XLID annotation for an existing variant in this pathology? Clinicians and researchers may submit a request here.
OGT variations on gene diagram:
You can zoom on a specific region by clicking and dragging over the area of interest on either chart, both will automatically stay synchronized. Click on any colored dot to filter the entire page and display only information for that specific variant.
OGT variations on protein sequence:
OGT variations on dna sequence: