CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
2 | Mainly Beta |
|
2.30 | Roll |
|
2.30.42 | Pdz3 Domain |
|
2.30.42.10 | PDZ domain |
Domain Context
CATH Clusters
| Superfamily | 2.30.42.10 |
| Functional Family | Partitioning defective 3 homolog |
Enzyme Information
| 2.3.2.27 |
RING-type E3 ubiquitin transferase.
based on mapping to UniProt Q8TBB1
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.
-!- The RING domain of E3 ubiquitin transferase serves as a mediator bringing the ubiquitin-charged E2 ubiquitin-conjugating enzyme and the acceptor protein together to enable the direct transfer of ubiquitin through the formation of an isopeptide bond between the C-terminal glycine residue of ubiquitin an the epsilon-amino group of an L-lysine residue of the acceptor protein. -!- The RING-E3 domain does not form a catalytic thioester intermediate with ubiquitin (unlike the HECT domain, EC 2.3.2.26). -!- RING-type ubiquitin transferases may occur as single-chain enzymes but also in dimeric forms or in multi-subunit assemblies. -!- Formerly EC 6.3.2.19 and EC 6.3.2.21.
|
UniProtKB Entries (1)
| Q8TBB1 |
LNX1_HUMAN
Homo sapiens
E3 ubiquitin-protein ligase LNX
|
PDB Structure
| PDB | 3B76 |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Escherichia |
| Primary Citation |
Crystal structure of the third PDZ domain of human ligand-of-numb protein-X (LNX1) in complex with the C-terminal peptide from the coxsackievirus and adenovirus receptor.
To be Published
|