The method 1, wherein said {HEAD ~ GlcNAc2Man3GlcNAc2Gal2NANA2 N glycan} is present at {TAIL ~ a level} from about 5 mole percent to about 80 mole percent more than the next most predominant N linked glycan structure of said plurality of N linked glycans 
The method 1 , wherein said { HEAD ~ GlcNAc2Man3GlcNAc2Gal2NANA2 N glycan } is present at { TAIL ~ a level } from about 5 mole percent to about 80 mole percent more than the next most predominant N linked glycan structure of said plurality of N linked glycans
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH