... transferase; pink, maltogenic a- amylase; blue, a- amylases from Bacillus and actinomycetes; light blue, a- amylases from fungi and yeast; green, maltotetraohydrolases and maltopentaohydrolase. A ... Reference withdrawn.75. Takada, M., Nakagawa, Y. & Yamamoto, M. (2003) Biochem-ical and genetic analyses of a novel c-cyclodextrin glucano-transferase from an alkalophilic Bacillus clarkii ... mutagenesis of histidine 93, aspartic acid 180, glutamicacid 205, histidine 290, and aspartic acid 291 at the active site and tryptophan 279 at the raw starch binding site in barley a- amylase1....