CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
2 | Mainly Beta |
|
2.60 | Sandwich |
|
2.60.40 | Immunoglobulin-like |
|
2.60.40.150 | C2 domain |
Domain Context
CATH Clusters
| Superfamily | C2 domain |
| Functional Family | E3 ubiquitin-protein ligase |
Enzyme Information
| 2.3.2.26 |
HECT-type E3 ubiquitin transferase.
based on mapping to UniProt Q96J02
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)- ubiquitinyl-[acceptor protein]-L-lysine.
-!- In the first step the enzyme transfers ubiquitin from the E2 ubiquitin-conjugating enzyme (EC 2.3.2.23) to a cysteine residue in its HECT domain (which is located in the C-terminal region), forming a thioester bond. -!- In a subsequent step the enzyme transfers the ubiquitin to an acceptor protein, resulting in the formation of an isopeptide bond between the C-terminal glycine residue of ubiquitin and the epsilon- amino group of an L-lysine residue of the acceptor protein. -!- Cf. EC 2.3.2.27 and EC 2.3.2.31.
|
UniProtKB Entries (1)
| Q96J02 |
ITCH_HUMAN
Homo sapiens
E3 ubiquitin-protein ligase Itchy homolog
|
PDB Structure
| PDB | 2NQ3 |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Escherichia |
| Primary Citation |
The C2 Domain of Human Itchy Homolog E3 Ubiquitin Protein Ligase
To be Published
|
