Schematic diagram illustrating the domain architecture of the S. cerevisiae Rim15 protein. All domains are drawn approximately to scale. Rim15 belongs to a group of conserved fungal proteins, which exhibit the same domain organization, including the N-terminal PAS and CCHC-type zinc finger domains, the central kinase catalytic domain (black ovals), with an insert of 188 amino acids between subdomains VII and VIII, that classifies Rim15 as a member of the conserved nuclear Dbf2-related (NDR) and large tumor suppressor (LATS) serine/threonine kinase subclasses of the protein kinase A, G, and C (AGC) class of kinases, and a C-terminal receiver (REC) domain. The PKA and the Pho85-Pho80 phosphorylation sites are indicated with open and closed arrows, respectively. The single high-stringency, putative 14-3-3 protein-binding site in Rim15 flanks amino acid T1075.