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Information on EC 2.3.2.23 - E2 ubiquitin-conjugating enzyme

for references in articles please use BRENDA:EC2.3.2.23

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IUBMB Comments

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.

The enzyme appears in viruses and cellular organisms
Reaction Schemes
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

Synonyms
ube2c, cdc34, ubc13, ube2t, ubch10, e2 enzyme, ube2s, ubch7, e2 ubiquitin-conjugating enzyme, ube2l3, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
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
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
-
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