Identification and sequencing of temperature sensitive alleles of the Anaphase Promoting Complex component in .

The Anaphase Promoting Complex (APC) regulates the transition from metaphase to anaphase during cell division and is important to prevent defects in chromosome segregation. In a recent temperature sensitive genetic screen looking for further genes involved in fertilization, we isolated a new temperature sensitive allele of . We also sequenced a previously identified allele that did not previously have an annotated sequence. We determined that the allele was an Alanine to Threonine (A451T) mutation in the sixth exon and the mutation was a Leucine to Phenylalanine (L474F) mutation in the seventh exon. These locations of the mutant alleles are consistent with other previously annotated alleles that displayed the same metaphase to anaphase transition defect phenotype and further reinforce the importance of the tetratricopeptide repeats to mediate protein interactions.