Molecular cloning and expression of a member of the aquaporín family with permeability to glycerol and urea in addition to water expressed at the basolateral membrane of kidney collecting duct cells. - Ishibashi,K.; Sasaki,S.; Fushimi,K.; Uchida,S.; Kuwahara,M.; Saito,H.; Furukawa,T.; Nakajima,K.; Yamaguchi,Y.; Gojobori,T. (Proc Natl Acad Sci U S A, 1994)