Glycoproteins: carbohydrates to cloning

This article is dedicated to Professor Saul Roseman and briefly outlines some of the early studies on sialyltransferases, on glycoproteins such as pig submaxillary mucins and, more recently, on a series of unusual proteins and glycoproteins high in proline, the so-called proline-rich proteins. Hopefully, it represents, in an inadequate manner, my appreciation for 'The man and his works'. During the Roseman Symposium at the 11th International Symposium on Glycoconjugates in Toronto, several of his former students and postdocs tried to describe what it was like in the Roseman laboratory. Clearly, the time I was in Saul's lab was like no other time in my career. Thanks for everything, Saul.