The 2 papers which experimentally study the biological roles of both TFs of the PCTFP (Cyc8-Arg81)
Yu H and Gerstein M (2006) Genomic analysis of the hierarchical structure of regulatory networks. Proc Natl Acad Sci U S A 103(40):14724-31
Ljungdahl PO and Daignan-Fornier B (2012) Regulation of Amino Acid, Nucleotide, and Phosphate Metabolism in Saccharomyces cerevisiae. Genetics 190(3):885-929