notable features of these are ( a ) the absence of cyst ( e ) ine , which suggests that each is a single polypeptide chain ( b ) the presence of a methionine residue in the lupin leghaemoglobins , and ( c ) the high contents of alanine , aspartic acid plus asparagine , glutamic acid plus glutamine , leucine , lysine , serine and valine .
C0061472
glutamic acid
C0017797
glutamine