RT-PCR analysis of ribosomal protein and proteolytic degradation genes in the ssa1/2 deletion mutant and wild-type. RT-PCR was carried out as described in "Materials and Methods", and primers, product size and numbers of PCR cycle are described on Table 3. The RT-PCR products were run on a 4% Nu-Sieve 3:1 Plus agarose gel. A, genes for proteolytic degradation. B, ribosomal protein genes.