Information on EC 2.5.1.98 - Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase

for references in articles please use BRENDA:EC2.5.1.98
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IUBMB Comments
The enzyme is responsible for pyruvylation of the subterminal glucose in the acidic octasaccharide repeating unit of the exopolysaccharide of Rhizobium leguminosarum (bv. viciae strain VF39) which is necessary to establish nitrogen-fixing symbiosis with Pisum sativum, Vicia faba, and Vicia sativa.
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The enzyme appears in viruses and cellular organisms
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
phosphoenolpyruvate + [beta-D-GlcA-(1->4)-2-O-Ac-beta-D-GlcA-(1->4)-beta-D-Glc-(1->4)-[3-O-(CH3CH(OH)CH2C(O))-4,6-CH3(COO-)C-beta-D-Gal-(1->4)-beta-D-Glc-(1->4)-beta-D-Glc-(1->4)-beta-D-Glc-(1->6)]-2(or 3)-O-Ac-alpha-D-Glc-(1->6)]n = [beta-D-GlcA-(1->4)-2-O-Ac-beta-D-GlcA-(1->4)-beta-D-Glc-(1->4)-[3-O-(CH3CH(OH)CH2C(O))-4,6-CH3(COO-)C-beta-D-Gal-(1->3)-4,6-CH3(COO-)C-beta-D-Glc-(1->4)-beta-D-Glc-(1->4)-beta-D-Glc-(1->6)]-2(or 3)-O-Ac-alpha-D-Glc-(1->6)]n + phosphate
show the reaction diagram
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