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Information on EC 3.1.1.109 - iron(III)-salmochelin esterase

for references in articles please use BRENDA:EC3.1.1.109

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IUBMB Comments

This bacterial enzyme is present in pathogenic Salmonella species, uropathogenic and avian pathogenic Escherichia coli strains, and certain Klebsiella strains. The enzyme acts on iron(III)-bound enterobactin and C-glucosylated derivatives known as salmochelins. Unlike EC 3.1.1.107, apo-salmochelin esterase (IroE), IroD prefers iron(III)bound siderophores as substrates, and is assumed to act after the iron-siderophore complexes are imported into the cell. It catalyses several hydrolytic reactions, producing a mixture of iron(III)-[N-(2,3-dihydroxybenzoyl)-L-serine] complex and salmochelin SX.

The expected taxonomic range for this enzyme is: Escherichia coli
Reaction Schemes
hide(3 overall reactions are displayed. Show all (6)>>)
iron(III)-[diglucosyl-enterobactin] complex
+
=
iron(III)-[salmochelin S2] complex
iron(III)-[monoglucosyl-enterobactin] complex
+
=
iron(III)-[monoglucosyl-(2,3-dihydroxybenzoylserine)3] complex
iron(III)-[salmochelin S2] complex
+
=
iron(III)-[diglucosyl-(2,3-dihydroxybenzoylserine)2] complex
+

Synonyms
ferric mge/dge esterase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
iron(III)-[diglucosyl-(2,3-dihydroxybenzoylserine)2] complex + H2O = iron(III)-[salmochelin SX] complex + salmochelin SX
show the reaction diagram
(6)
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iron(III)-[diglucosyl-enterobactin] complex + H2O = iron(III)-[salmochelin S2] complex
show the reaction diagram
(1)
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-
iron(III)-[monoglucosyl-(2,3-dihydroxybenzoylserine)3] complex + H2O = iron(III)-[salmochelin S1] complex + N-(2,3-dihydroxybenzoyl)-L-serine
show the reaction diagram
(5)
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iron(III)-[monoglucosyl-enterobactin] complex + H2O = iron(III)-[monoglucosyl-(2,3-dihydroxybenzoylserine)3] complex
show the reaction diagram
(2)
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iron(III)-[salmochelin S2] complex + H2O = iron(III)-[diglucosyl-(2,3-dihydroxybenzoylserine)2] complex + N-(2,3-dihydroxybenzoyl)-L-serine
show the reaction diagram
(3)
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iron(III)-[salmochelin S2] complex + H2O = iron(III)-[salmochelin S1] complex + salmochelin SX
show the reaction diagram
(4)
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PATHWAY SOURCE
PATHWAYS
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