“…The predicted N-terminal domain (WbbO N ) could not complement the ⌬wbbO mutation as expected (data not shown). Therefore, when expressed from a plasmid, WbbO does not require the N terminus for galactosyltransferase function and the reported ␣-galactopyranosyl-and -galactofuranosyltransferase activity (14,20) of the enzyme is confined to the C-terminal domain of WbbO.…”