... some of the a- amylase family CSRs, namely the b-strandsb2, b3, b4 and b8 of the (b ⁄ a) 8barrel domain, and for rBAT also with the short stretch near the C-terminus of domain B [9,19]. From the ... lizards and frogs (lacking both essential aspar-tates at the b4- and b7-strands) and also from somefishes (lacking the b4-strand aspartate). This may meanthat the eventuality of a- glucosidase ... withinwhich taxonomy is respected: (a) for the rBATs from human via representatives of mammals, birds, lizard,frogs and fishes to Urochordata (sea squirts) andCephalochordata (lancelet); and (b) for the...