Selective Engineering of Linkage‐Specific α2,6‐N‐Linked Sialoproteins Using Sydnone‐Modified Sialic Acid Bioorthogonal Reporters

Financial support from CNRS (ATIP‐Avenir program to F.F.) is gratefully acknowledged. This study has also received financial support from the French State through the “Investments for the Future” Programme IdEx Bordeaux (ANR‐10‐IDEX‐03‐02 to F.F.) and from the Laboratory of Excellence TRAIL (ANR‐10‐LABX‐57 to F.F.), EraNet Neuron TRAINS, and US National Institutes of Health (P41GM103390, P01GM107012, and R01GM130915 to K.W.M.).