Trp 227 GN229 G|u271 Ala 275 Asp 282 va345 The above chain of ten water molecules, linking the end of one a-helix to the middle of another is found from the x- ray diffraction data of glucoamylase-471, The water network links secondary structures within the proteinThe above chain of ten water molecules, linking the end of one a-helix to the middle of another is found from the X￾ray diffraction data of glucoamylase-471, The water network links secondary structures within the protein