Human chromosomal passenger complex (CPC) is composed of Aurora-B, inner centromere protein, and so forth. So I wish to raise the following question:

1. Have we already identified all components of human CPC?

If not, two more questions can be raised:

2. Should we perform yeast two-hybrid screening with human Aurora-B as bait?

3. Should we employ human thymus cDNA prey library for that screening?

Addendum primum:

From now on, I will use the auxiliary “should” carefully.