This gene is a member of the forkhead/winged helix
transcription factor family. Checkpoints are eukaryotic DNA
damage-inducible cell cycle arrests at G1 and G2. Checkpoint
suppressor 1 suppresses multiple yeast checkpoint mutations
including mec1, rad9, rad53 and dun1 by activating a
MEC1-independent checkpoint pathway. Alternative splicing is
observed at the locus, resulting in distinct isoforms. [provided by
RefSeq].