CATH Classification

Domain Context

CATH Clusters

Superfamily SH3 Domains
Functional Family E3 ubiquitin-protein ligase SH3RF1

Enzyme Information

2.3.2.27
RING-type E3 ubiquitin transferase.
based on mapping to UniProt Q8BZT2
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)

Q8BZT2
SH3R2_MOUSE
Mus musculus
Putative E3 ubiquitin-protein ligase SH3RF2

PDB Structure

PDB 2DJQ
External Links
Method SOLUTION NMR
Organism
Primary Citation
The solution structure of the first SH3 domain of mouse SH3 domain containing ring finger 2
Sasagawa, A., Tochio, N., Koshiba, S., Inoue, M., Kigawa, T., Yokoyama, S.
To be Published