2.5.1.95: xanthan ketal pyruvate transferase

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For detailed information about xanthan ketal pyruvate transferase, go to the full flat file.

Reaction

Synonyms

GumL, KPT

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)

                2.5.1.95 xanthan ketal pyruvate transferase

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Systematic Name on EC 2.5.1.95 - xanthan ketal pyruvate transferase

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SYSTEMATIC NAME

IUBMB Comments

phosphoenolpyruvate:D-Man-beta-(1->4)-GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4,6-O-(1-carboxyethan-1,1-diyl)transferase

Involved in the biosynthesis of the polysaccharide xanthan. 30-40% of the terminal mannose residues of xanthan have a 4,6-O-(1-carboxyethan-1,1-diyl) ketal group. It also acts on the 6-O-acetyl derivative of the inner mannose unit.