Checkpoints take the next step.

Ataxia Telangiectasia Mutated Proteins Cell Cycle Cell Cycle Proteins Checkpoint Kinase 1 Checkpoint Kinase 2 DNA Damage DNA Replication DNA-Binding Proteins Humans Mitosis Mutation Phosphorylation Protein Kinases/genetics,metabolism Protein Serine-Threonine Kinases Proteins/genetics,metabolism Saccharomyces cerevisiae/cytology,metabolism Saccharomyces cerevisiae Proteins Schizosaccharomyces/cytology,metabolism Signal Transduction Tumor Suppressor Proteins

Cell Cycle Proteins DNA-Binding Proteins Proteins Saccharomyces cerevisiae Proteins Tumor Suppressor Proteins Protein Kinases Checkpoint Kinase 2 ATM protein, human Ataxia Telangiectasia Mutated Proteins Checkpoint Kinase 1 Protein Serine-Threonine Kinases RAD53 protein, S cerevisiae