6EOU image
Deposition Date 2017-10-10
Release Date 2018-05-09
Last Version Date 2024-01-17
Entry Detail
PDB ID:
6EOU
Keywords:
TRANSFERASE
Title:
O-GlcNAc transferase TPR domain with the intellectual disability associated mutation L254F
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.75 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
C 2 2 21
6EOU validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit
Gene (Uniprot):OGT
Mutations:L254F
Chain IDs:A
Chain Length:388
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:O15294 Pfam ID:PF13414, PF13181, PF00515, PF13424 EC:2.4.1.255
Primary Citation
The O-GlcNAc Transferase Intellectual Disability Mutation L254F Distorts the TPR Helix.
Cell Chem Biol 25 513 518.e4 (2018)
PMID: 29606577 DOI: 10.1016/j.chembiol.2018.03.004

Abstact

O-linked β-N-acetyl-D-glucosamine (O-GlcNAc) transferase (OGT) regulates protein O-GlcNAcylation, an essential post-translational modification that is abundant in the brain. Recently, OGT mutations have been associated with intellectual disability, although it is not understood how they affect OGT structure and function. Using a multi-disciplinary approach we show that the L254F OGT mutation leads to conformational changes of the tetratricopeptide repeats and reduced activity, revealing the molecular mechanisms contributing to pathogenesis.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
6EOU