pUC118 & pUC119 were described quite some time ago. They are for the most part similar to pUC18 & pUC18 but also conatin and M13 intergenic region. These vectors were described by Vieira & Messing in 1987, Methods of Enzymology, 153:3-11. Bart Frank Internet: BFRANK at AARDVARK.UCS.UOKNOR.EDU