... ligation; glycoMTS, glycosyl methanethiosulfonates; glycoSeS, selenenylsulfide-mediated glycosylation;MTS, methanethiosulfonates; NCL, native chemical ligation; PTM, post-translational modification; ... approach is to exploit thefine control that may be offered by chemistry [4]. Acombination of chemical, enzymatic and biologicalaugmentation strategies can provide a modificationprocess that occurs ... striking was the broad substrate tolerancethat could be engineered (e.g. towards non-naturalamino acids) by appropriate incorporation of the polardomain [47]. In an example that combines the explora-tion...