CATH Classification

Domain Context

CATH Clusters

Superfamily Hect, E3 ligase catalytic domain
Functional Family E3 ubiquitin-protein ligase HECW2

Enzyme Information

2.3.2.26
HECT-type E3 ubiquitin transferase.
based on mapping to UniProt Q9H0M0
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)

Q9H0M0
WWP1_HUMAN
Homo sapiens
NEDD4-like E3 ubiquitin-protein ligase WWP1

PDB Structure

PDB 1ND7
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Conformational Flexibility Underlies Ubiquitin Ligation Mediated by the WWP1 HECT domain E3 Ligase
Verdecia, M.A., Joaziero, C.A.P., Wells, N.J., Ferrer, J.-L., Bowman, M.E., Hunter, T., Noel, J.P.
Mol.Cell