The isolation and characterization of a Neurospora crassa gene (ubi::crp-6) encoding a ubiquitin-40S ribosomal protein fusion protein

We have isolated and sequenced a Neurospora crassa gene encoding a single copy of ubiquitin (UBI) fused to the S27a ribosomal (r) protein. We have opted to name this gene the ubiquitin/cytoplasmic r-protein gene 6 (ubi::crp-6). The ubi::crp-6 gene generates a 700-nucleotide (nt) transcript. It shares a 700-bp regulatory region with the cytoplasmic r-protein gene 5 (crp-5), a gene encoding the N. crassa S26 r-protein. The two genes are transcribed divergently from the common regulatory region and their mRNA levels are regulated in parallel during growth on a variety of carbon sources.