2.3.2.25: N-terminal E2 ubiquitin-conjugating enzyme
This is an abbreviated version!
For detailed information about N-terminal E2 ubiquitin-conjugating enzyme, go to the full flat file.
Reaction
Synonyms
E2 Ube2w, E2 ubiquitin-conjugating enzyme, Ubc16, UbcH6, UBE2E1, UBE2O, UBE2W, ubiquitin conjugating enzyme, ubiquitin conjugating enzyme E2, ubiquitin-conjugating enzyme (E2), ubiquitin-conjugating enzyme E2, ubiquitin-protein ligase W
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Reaction
Reaction on EC 2.3.2.25 - N-terminal E2 ubiquitin-conjugating enzyme
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S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [acceptor protein]-N-terminal-amino acid = [E1 ubiquitin-activating enzyme]-L-cysteine + N-terminal-ubiquitinyl-[acceptor protein]
S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [N-terminal E2 ubiquitin-conjugating enzyme]-L-cysteine = [E1 ubiquitin-activating enzyme]-L-cysteine + S-ubiquitinyl-[N-terminal ubiquitin-conjugating enzyme]-L-cysteine
(1a)
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S-ubiquitinyl-[N-terminal E2 ubiquitin-conjugating E2 enzyme]-L-cysteine + [acceptor protein]-N-terminal-amino acid = [N-terminal E2 ubiquitin-conjugating enzyme]-L-cysteine + N-ubiquitinyl-[acceptor protein]-N-terminal amino acid
(1b)
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S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [acceptor protein]-N-terminal-amino acid = [E1 ubiquitin-activating enzyme]-L-cysteine + N-terminal-ubiquitinyl-[acceptor protein]
overall reaction
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S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [acceptor protein]-N-terminal-amino acid = [E1 ubiquitin-activating enzyme]-L-cysteine + N-terminal-ubiquitinyl-[acceptor protein]
in contrast to other ubiquitin-conjugating enzymes which form an isopeptide bond, this enzyme catalyzes the formation of a peptide bond at the N-terminus of the acceptor protein
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