p166 is a central component of a protein complex that is essential for mitochondrial genome segregation in Trypanosoma brucei. The last 34 aa (the C-tail) of p166 are absolutely essential for its function of p166. The prupose of this experiment is to find even putative binding partners interacting with p166. For this purpose, two CoIP experiments with a truncated soluble version of p166 were performed. One uses p166 with an intact C-tail whereas the C-tail is removed in a second experiment. Differences between the two CoIPs indicate potential interactors of the C-tail.