Summary

Name OGT
Full Name UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit
Synonyms O-GlcNAc transferase subunit p110, O-linked N-acetylglucosamine transferase 110 kDa subunit, OGT
Primary ID O15294
Links - -
Type protein
Relations 13
Function Catalyzes the transfer of a single N-acetylglucosamine from UDP-GlcNAc to a serine or threonine residue in cytoplasmic and nuclear proteins resulting in their modification with a beta-linked N-acetylglucosamine (O-GlcNAc) (PubMed:26678539, PubMed:23103939, PubMed:21240259, PubMed:21285374, PubMed:15361863). Glycosylates a large and diverse number of proteins including histone H2B, AKT1, EZH2, PFKL, KMT2E/MLL5, MAPT/TAU and HCFC1. Can regulate their cellular processes via cross-talk between glycosylation and phosphorylation or by affecting proteolytic processing (PubMed:21285374). Probably by glycosylating KMT2E/MLL5, stabilizes KMT2E/MLL5 by preventing its ubiquitination (PubMed:26678539). Involved in insulin resistance in muscle and adipocyte cells via glycosylating insulin signaling components and inhibiting the 'Thr-308' phosphorylation of AKT1, enhancing IRS1 phosphorylation and attenuating insulin signaling (By similarity). Involved in glycolysis regulation by mediating glycosylation of 6-phosphofructokinase PFKL, inhibiting its activity (PubMed:22923583). Component of a THAP1/THAP3-HCFC1-OGT complex that is required for the regulation of the transcriptional activity of RRM1. Plays a key role in chromatin structure by mediating O-GlcNAcylation of 'Ser-112' of histone H2B

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png glycosylation YAP1 0.287
Publications: 1
+ up-regulates activity img/direct-activation.png phosphorylation OGT 0.5
Publications: 2 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png glycosylation PYGL 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png glycosylation PFKL 0.282
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png glycosylation PFKM 0.354
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png glycosylation PFKP 0.26
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png glycosylation G6PD 0.267
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding OGT 0.456
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding NSL histone acetyltransferase 0.538
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png glycosylation TET1 0.452
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png glycosylation PFK 0.354
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding OGT 0.456
Publications: 1 Organism: Homo Sapiens