In addition to two-hybrid, a wide variety of other screens can be performed in yeast. These include:

Synthetic lethal screens, ie. Tong et al, 2001.
Deletion strain screens, Giaever et al, 2002; Bennett et al, 2001, Tucker & Fields, 2004.
Chemical screens. ie. Bedalov et al., 2001
Overexpression screens.

Please contact us if you are interested in our help initiating any of above, or other, screens. Our pricing, as with two-hybrid, is at cost (supplies and labor only).