1.3.3.16: oxazoline dehydrogenase
This is an abbreviated version!
For detailed information about oxazoline dehydrogenase, go to the full flat file.
Reaction
Synonyms
artG, azoline oxidase, Cyan7425_0520, cyanobactin oxidase, lynG, MbcC, mcaG, McbB, McbC, McbD, microcin B17 synthase, microcin B17-processing protein McbC, PatG, tenG, ThcOx, thiazoline oxidase, thiazoline oxidase/subtilisin-like protease
ECTree
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Substrates Products
Substrates Products on EC 1.3.3.16 - oxazoline dehydrogenase
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REACTION DIAGRAM
a [protein]-(1S,4R)-2-(C-substituted-aminomethyl)-4-acyl-2-thiazoline + O2
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-thiazole + H2O2
a [protein]-(S,S)-2-(C-substituted-aminomethyl)-4-acyl-2-oxazoline + O2
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-oxazole + H2O2
a [protein]-(S,S)-2-(C-substituted-aminomethyl)-4-acyl-5-methyl-2-oxazoline + O2
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-5-methyl-1,3-oxazole + H2O2
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a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-thiazole + H2O2
P23184; P23185; P23186
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a [protein]-(1S,4R)-2-(C-substituted-aminomethyl)-4-acyl-2-thiazoline + O2
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-thiazole + H2O2
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?
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-oxazole + H2O2
P23184; P23185; P23186
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?
a [protein]-(S,S)-2-(C-substituted-aminomethyl)-4-acyl-2-oxazoline + O2
a [protein]-(S)-2-(C-substituted-aminomethyl)-4-acyl-1,3-oxazole + H2O2
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proposed general mechanism for McbC: an activated Tyr202 abstracts a proton from the A carbon of an azoline substrate, which results in E2 elimination of the antiproton from the B carbon and hydride transfer to FMN. Instead of a proton being provided to FMN by a general base to yield FMNH2, the negative charge on N1 of FMN may be stabilized by a salt bridge with Arg233
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additional information
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enzyme oxidizes the 2-thiazoline in patellamide precursor peptides
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