CATH Classification

Domain Context

CATH Clusters

Superfamily 1.25.40.10
Functional Family Tetratricopeptide repeat domain-containing protein

Enzyme Information

2.3.2.27
RING-type E3 ubiquitin transferase.
based on mapping to UniProt Q9WUD1
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 (2)

Q9WUD1
CHIP_MOUSE
Mus musculus
STIP1 homology and U box-containing protein 1
P0DMV8
HS71A_HUMAN
Homo sapiens
Heat shock 70 kDa protein 1A

PDB Structure

PDB 3Q49
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Molecular Mechanism of the Negative Regulation of Smad1/5 Protein by Carboxyl Terminus of Hsc70-interacting Protein (CHIP).
Wang, L., Liu, Y.T., Hao, R., Chen, L., Chang, Z., Wang, H.R., Wang, Z.X., Wu, J.W.
J.Biol.Chem.