CATH Classification

Domain Context

CATH Clusters

Superfamily Ubiquitin Conjugating Enzyme
Functional Family Ubiquitin-conjugating enzyme E2 N

Enzyme Information

2.3.2.23
E2 ubiquitin-conjugating enzyme.
based on mapping to UniProt P61088
S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [E2 ubiquitin-conjugating enzyme]-L-cysteine = [E1 ubiquitin-activating enzyme]-L-cysteine + S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L- cysteine.
-!- The E2 ubiquitin-conjugating enzyme acquires the activated ubquitin from the E1 ubiquitin-activating enzyme (EC 6.2.1.45) and binds it via a transthioesterification reaction to itself. -!- In the human enzyme the catalytic center is located at Cys-87 where ubiquitin is bound via its C-terminal glycine in a thioester linkage. -!- Formerly EC 6.3.2.19.

UniProtKB Entries (2)

Q9WUD1
CHIP_MOUSE
Mus musculus
STIP1 homology and U box-containing protein 1
Q13404
UB2V1_HUMAN
Homo sapiens
Ubiquitin-conjugating enzyme E2 variant 1

PDB Structure

PDB 2C2V
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Chaperoned ubiquitylation--crystal structures of the CHIP U box E3 ubiquitin ligase and a CHIP-Ubc13-Uev1a complex.
Zhang, M., Windheim, M., Roe, S.M., Peggie, M., Cohen, P., Prodromou, C., Pearl, L.H.
Mol. Cell
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