2.5.1.98: Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase

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For detailed information about Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase, go to the full flat file.

Reaction

ECTree

     2 Transferases

         2.5 Transferring alkyl or aryl groups, other than methyl groups

             2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)

                2.5.1.98 Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase

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45	AA Sequence
2	General Information
1	Natural Substrates/ Products (Substrates)
1	Organism
1	Reaction
1	Reference
1	Substrates and Products (Substrate)
1	Systematic Name

Systematic Name

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Systematic Name on EC 2.5.1.98 - Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase

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SYSTEMATIC NAME

IUBMB Comments

phosphoenolpyruvate:[beta-D-GlcA-(1->4)-2-O-Ac-beta-D-GlcA-(1->4)-beta-D-Glc-(1->4)-[3-O-CH3-CH2CH(OH)C(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 4,6-O-(1-carboxyethan-1,1-diyl)transferase

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.