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Literature summary for 2.4.1.140 extracted from

  • Cote, G.L.; Sheng, S.
    Penta-, hexa-, and heptasaccharide acceptor products of alternansucrase (2006), Carbohydr. Res., 341, 2066-2072.
    View publication on PubMed

Organism

Organism UniProt Comment Textmining
Leuconostoc mesenteroides
-
NRRL B-21297
-
Leuconostoc mesenteroides NRRL B-21297
-
NRRL B-21297
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sucrose + maltose alternansucrase acceptor products from maltose do not contain dextran-type linkage sequences. Instead, the product series is comprised of an alternan-type linkage sequence, with some pairs of consecutive alpha-(1,6) linkages in the evennumbered members of the series. The distribution and sequence of linkages is apparently kinetically controlled. Branch formation is not detected below DP 8. Alternansucrase forms alpha-(1,3) linkages only when the acceptor is a-(1,6)-linked, thereby prohibiting the formation of sequences of alpha-(1,3) linkages. Furthermore, the enzyme appears not to make products containing more than two sequential alpha-(1,6) linkages, thereby prohibiting the formation of dextran-like linkage sequences Leuconostoc mesenteroides ?
-
?
sucrose + maltose alternansucrase acceptor products from maltose do not contain dextran-type linkage sequences. Instead, the product series is comprised of an alternan-type linkage sequence, with some pairs of consecutive alpha-(1,6) linkages in the evennumbered members of the series. The distribution and sequence of linkages is apparently kinetically controlled. Branch formation is not detected below DP 8. Alternansucrase forms alpha-(1,3) linkages only when the acceptor is a-(1,6)-linked, thereby prohibiting the formation of sequences of alpha-(1,3) linkages. Furthermore, the enzyme appears not to make products containing more than two sequential alpha-(1,6) linkages, thereby prohibiting the formation of dextran-like linkage sequences Leuconostoc mesenteroides NRRL B-21297 ?
-
?