... [9,19,24,25]. The main goal of the present study was to investi-gate further the resemblance between hcHAT proteinsand the enzymes from the a-amylase family. We there-fore carried out a bioinformatics ... [3,1 1–1 3]. Of the three GHfamilies of the clan GH-H, it was the family GH13that was originally established as the a-amylase family[1 4–1 7]. At present it belongs to the largest families in the ... function rather as 4F2hcthan as rBAT [3 1–3 3], their rBAT-like role has not asyet been investigated. However, as seen in Fig. 1 (the tree based on the complete alignment), the hcHAT2 group (Arthropoda)...