Table IV. Categories of genes identified by screen.

Category	Examples
Transcription/chromatin structure	RPO21, SIN3, SPT5, SPT6, SRB9, ESC4, CDC39, CDC73, POB3, RPC40, TFG1, YTA6
Cell wall biosynthesis, lipid metabolism	ECM4, ECM17, CDS1, ECM29, ECI1, ERG5, CHO1, FAS1, CSI2, SUR1
Cell polarity/cytoskeletal structure	SHE3, RSR1, RDI1, ARC40, CDC25, BNI4
Nutrient acquisition/metabolism	CDC19, FGR2, FCY2, CHA1, CDC25, ZAP1, RNR1, TFI1, ADR1, QNS1
Filamentous growth	TUP1, RFG1, PDE2, CZF1, NRG1, NOT1
Other signaling pathways	FUS3, STE13, STE23, CBK1
Unknown function without related genes	FGR1–FGR51

Categories are defined based upon examples from S.cerevisiae and the Saccharomyces Genome Database (http://genome-www.stanford.edu/Saccharomyces).