Table 1.

CDK target sets used in this study

Set	Ascertainment	Total	Definition of target	Positives
'Known'	Unknown, complex	12	Low-throughput experimental characterization	12
'Unbiased'	randomly chosen proteins	198	Score > 2 in high-throughput assay	18
'2+'	All S. cerevisiae proteins containing two or more matches to the 'strong' CDK consensus	385	Score > 2 in high-throughput assay	143
'1cc'	All S. cerevisiae proteins containing one match to the 'strong' CDK consensus and exhibiting cell cycle regulated transcription	137	Score > 2 in high-throughput assay	32

Four cyclin-dependent kinase (CDK) target sets from Saccharomyces cerevisiae [11]. Note that only the high-throughput data contain 'negatives'. The 'strong' CDK consensus is S/T-P-X-R/K, where X represents any amino acid.