CATH Classification

Domain Context

CATH Clusters

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

Enzyme Information

2.3.2.23
E2 ubiquitin-conjugating enzyme.
based on mapping to UniProt P52478
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 (1)

P52478
UBC1_CAEEL
Caenorhabditis elegans
Ubiquitin-conjugating enzyme E2 1

PDB Structure

PDB 1Z3D
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Protein crystal growth improvement leading to the 2.5A crystallographic structure of ubiquitin-conjugating enzyme (ubc-1) from Caenorhabditis elegans
Gavira, J.A., DiGiammarino, E., Tempel, W., Toh, D., Liu, Z.J., Wang, B.C., Meehan, E., Ng, J.D.
To be Published
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