3L2M HYDROLASE, CATALYTIC DOMAIN, CARBOHYDRATE BINDING MODULE, ALPHA- CYCLODEXTRIN, CARBOHYDRATE METABOLISM, GLYCOPROTEIN, GLYCOSIDASE, METAL-BINDING, PYRROLIDONE CARBOXYLIC ACID, SECRETED X-RAY CRYSTALLOGRAPHIC ANALYSIS OF PIG PANCREATIC ALPHA- AMYLASE WITH ALPHA-CYCLODEXTRIN