Fig. 1. Expression R2 and PPP4c mRNAs in human tissues. Human multiple tissue northern blots (Clontech) were hybridised with a R2 cDNA probe (0.8 kb, coding for amino acids 78-316) and PPP4c cDNA probe (0.8 kb, coding for amino acids 12-279) and a ß-actin control probe. ß-actin mRNA was used as a control to assess the variation in sample loading. Hybridisation using each probe was carried out separately, and the blot was stripped before being re-hybridised with the next probe. Transcripts are indicated by arrows on the right, and the positions of RNA standards of known sizes are indicated in kb on the left.