ID   2.4.1.341
DE   alpha-1,2-colitosyltransferase.
CA   beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine + GDP-beta-L-colitose =
CA   alpha-L-colitosyl-(1->2)-beta-D-galactosyl-(1->3)-N-acetyl-D-glucosamine
CA   + GDP + H(+).
CC   -!- The enzyme, characterized from the bacterium Escherichia coli O55:H7,
CC       participates in the biosynthesis of an O-antigen.
CC   -!- The reaction involves anomeric inversion, and does not require any
CC       metal ions.
CC   -!- The enzyme is highly specific toward the acceptor, exclusively
CC       recognizing lacto-N-biose, but can accept GDP-L-fucose as the donor
CC       with almost the same activity as with GDP-beta-L-colitose.
DR   Q8VQ46, WBGN_ECOLX ;
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