... is the lack of domain B protruding out of the TIM barrel in the place of loop 3 connecting the b3-strand to the a3-helix [9,21]. Sharing domain B by rBATs andGH13 enzymes, and especially the ... in region I covering the b3-strand; (b) a segment of up to five residues(307_GVDGF in human rBAT) preceding the func-tional arginine (arginine 197 in oligo-1,6-glucosidase) in region II of the ... the b-strandsb2, b3, b4 and b8 of the (b ⁄ a)8barrel domain, and forrBAT also with the short stretch near the C-terminus of domain B [9,19]. From the sequence structure point of view, the basic...