cyclin box found in Saccharomyces cerevisiae PHO85 cyclin-7 (ScPCL7) and similar proteins
ScPCL7, also called PHO85-associated protein 1, is a cyclin partner of the cyclin-dependent kinase (CDK) PHO85. Together with cyclin PCL6, ScPCL7 controls glycogen phosphorylase and glycogen synthase activities in response to nutrient availablility. This family also includes Schizosaccharomyces pombe PHO85 cyclin-like protein Psl1 (SpPsl1) and Arabidopsis thaliana PHO80-like proteins, P-type cyclins (CYCPs). SpPsl1 is the cyclin partner of the CDK pef1 (PHO85 homolog). CYCPs may be involved in cell division, cell differentiation, and the nutritional status of the cell in Arabidopsis thaliana. Members of this family contain one cyclin box. The cyclin box is a protein binding domain.