CLLU1 hybridization to human multiple tissue RNA array. (A) Schematic representation of the tissues and cell lines represented on the filter. (B) Hybridization with a probe corresponding to exon 3 of CLLU1. The dot blot was the human MTE from Clontech. Despite very long exposure time (on phosphor imager), the only significant signals were from control spots with human and E coli chromosomal DNA. The signal from E coli is caused by the presence of a small amount of E coli chromosomal DNA in the plasmid preparation used to prepare the CLLU1 probe. The probe was random labeled with α[³²P]dATP.