Fig. 2.
Relative quantities of N-glycans based on the number of sialic acids (asialo, mono-sialo, di-sialo, tri-sialo, tetra-sialo) detected in lyophilized cell pellets (a: L428, b: U937, c: SK-N-SH) by each laboratory. Percentages of all classes to the total glycans are presented. PM permethylation