CATH Classification

Domain Context

CATH Clusters

Superfamily Zinc/RING finger domain, C3HC4 (zinc finger)
Functional Family E3 ubiquitin-protein ligase UHRF1

Enzyme Information

2.3.2.27
RING-type E3 ubiquitin transferase.
based on mapping to UniProt Q96T88
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)

Q96T88
UHRF1_HUMAN
Homo sapiens
E3 ubiquitin-protein ligase UHRF1

PDB Structure

PDB 3FL2
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of the Ring Domain of the E3 Ubiquitin-Protein Ligase Uhrf1
Walker, J.R., Avvakumov, G.V., Xue, S., Li, Y., Bountra, C., Weigelt, J., Arrowsmith, C.H., Edwards, A.M., Bochkarev, A., Dhe-Paganon, S.
To be Published