CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
1 | Mainly Alpha |
|
1.25 | Alpha Horseshoe |
|
1.25.40 | Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat |
|
1.25.40.10 | Tetratricopeptide repeat domain |
Domain Context
CATH Clusters
| Superfamily | Tetratricopeptide repeat domain |
| Functional Family | UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit |
Enzyme Information
| 2.4.1.255 |
Protein O-GlcNAc transferase.
based on mapping to UniProt O15294
(1) UDP-N-acetyl-alpha-D-glucosamine + [protein]-L-serine = UDP + [protein]-3-O-(N-acetyl-beta-D-glucosaminyl)-L-serine. (2) UDP-N-acetyl-alpha-D-glucosamine + [protein]-L-threonine = UDP + [protein]-3-O-(N-acetyl-beta-D-glucosaminyl)-L-threonine.
-!- Within higher eukaryotes post-translational modification of protein serines/threonines with N-acetylglucosamine (O-GlcNAc) is dynamic, inducible and abundant, regulating many cellular processes by interfering with protein phosphorylation. -!- EC 2.4.1.255 transfers GlcNAc onto substrate proteins and EC 3.2.1.169 cleaves GlcNAc from the modified proteins.
|
UniProtKB Entries (1)
| P68400 |
CSK21_HUMAN
Homo sapiens
Casein kinase II subunit alpha
|
PDB Structure
| PDB | 3TAX |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
A neutral diphosphate mimic crosslinks the active site of human O-GlcNAc transferase.
Nat.Chem.Biol.
|