Mutation within the conserved region of a 5.8kb HindIII Cdk1 genomic fragment (amino acid replacement G177E), mutation corresponds to a known temperature sensitive allele of S. pombe cdc2.
Cdk1G177E partially rescues Cdk1216P/Df(2L)J27
Cdk1G177E fails to rescue Cdk1E1-23/Df(2L)J27
Cdk1G177E fails to rescue Cdk1B47/Df(2L)J27
Provides little activity at high or low temperatures.