%0 Journal Article %T Directed evolution of bacterial polysialyltransferases %A Janesch,, Bettina %A Baumann,, Lars %A Mark,, Alison %A Thompson,, Nicole %A Rahmani,, Sadia %A Sim,, Lyann %A Withers, Stephen, G %A Wakarchuk, Warren, W %J Glycobiology %V 29 %N 7 %@ 0959-6658 %D 2019-07-01 %I Oxford University Press %~ DeepDyve