>cd03357 LbH_MAT_GAT Maltose O-acetyltransferase (MAT) and Galactoside O-acetyltransferase (GAT): MAT and GAT catalyze the CoA-dependent acetylation of the 6-hydroxyl group of their respective sugar substrates. MAT acetylates maltose and glucose exclusively at the C6 position of the nonreducing end glucosyl moiety. GAT specifically acetylates galactopyranosides. Furthermore, MAT shows higher affinity toward artificial substrates containing an alkyl or hydrophobic chain as well as a glucosyl unit. Active MAT and GAT are homotrimers, with each subunit consisting of an N-terminal alpha-helical region and a C-terminal left-handed parallel alpha-helix (LbH) subdomain with 6 turns, each containing three imperfect tandem repeats of a hexapeptide repeat motif (X-[STAV]-X-[LIV]-[GAED]-X).

Probab=98.72  E-value=2.4e-08  Score=51.33  Aligned_cols=36  Identities=22%  Similarity=0.364  Sum_probs=15.8

Q ss_pred             CCCCCCCCCCCCCCCCCCCCCCCCEEECCCEEECCC
Q ss_conf             122222110111111112432201397498499888
Q gi|254781223|r   65 AIVRDTAEVGGDAFVIGFTVISGNARVRGNAVVGGD  100 (110)
Q Consensus        65 ~~~~~~~~i~~~~~i~~~~~I~~~~~I~~~~~I~~~  100 (110)
T Consensus       119 I~Igd~vWIG~~~~IlpGVtIG~~~vIgAGsVVtkd  154 (169)
T cd03357         119 ITIGDNVWIGGGVIILPGVTIGDNSVIGAGSVVTKD  154 (169)
T ss_pred             EEECCCCEECCCCEEECCCEECCCCEECCCCEECCC
T ss_conf             698974362899789099799999999889879746