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Information on EC 1.13.11.64 - 5-nitrosalicylate dioxygenase

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IUBMB Comments
The enzyme, characterized from the soil bacterium Bradyrhizobium sp. JS329, is involved in the pathway of 5-nitroanthranilate degradation. It is unusual in being able to catalyse the ring fission without the requirement for prior removal of the nitro group. The product undergoes spontaneous lactonization, with concurrent elimination of the nitro group.
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The enzyme appears in viruses and cellular organisms
Reaction Schemes
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Synonyms
5NSA dioxygenase, naaB, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
4-nitro-6-oxohepta-2,4-dienedioate = 2-oxo-3-(5-oxofuran-2-ylidene)propanoate + nitrite
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spontaneous
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5-nitrosalicylate + O2 = 2-oxo-3-(5-oxofuran-2-ylidene)propanoate + nitrite
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overall reaction
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5-nitrosalicylate + O2 = 4-nitro-6-oxohepta-2,4-dienedioate
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(1a)
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