Deletion from 5' UTR, including the region encoding α-helix 1, a conserved element of the cyclin box essential for cdc2 binding.
Oogenesis proceeds normally until after entry into meiosis I, exit from meiosis after egg activation is defective. Homozygotes and hemizygotes reach adulthood.
CycB33/CycB3[+] is a non-enhancer of mitotic domain 1 | embryonic cycle 14 phenotype of CycB+t10
CycB33/CycB3[+] is a non-suppressor of mitotic domain 1 | embryonic cycle 14 phenotype of CycB+t10
CycB33, CycB2 has embryo | embryonic cycle 15 phenotype
CycB33, Df(2R)599-5 has embryo | embryonic cycle 15 phenotype
CycB33 CycB (CycB2 or Df(2R)599-5) double mutants have defective late mitotic figures during mitosis 15 at stage 10 and multipolar spindles at stage 13.