Table 4 Sequence identity and expression context conservation of the two βNAC in-paralogs in S. cerevisiae. The β subunit of the Nascent polypeptide-Associated Complex has two orthologs in S. cerevisiae: Enhanced Gal4 DNA binding protein 1 (EGD1, β1NAC) and Basic Transcription factor Three 1 (BTT1, β3NAC). The three other species in this analysis have only one ortholog: inhibitor of cell death 1 (icd-1 in C. elegans), bicaudal (bic in D. melanogaster) and Basic Transcription Factor 3 (BTF3 in H. sapiens).