Undulin, an extracellular matrix glycoprotein associated with collagen fibrils. - Schuppan,D.; Cantaluppi,M.C.; Becker,J.; Veit,A.; Bunte,T.; Troyer,D.; Schuppan,F.; Schmid,M.; Ackermann,R.; Hahn,E.G. (J Biol Chem, 1990)