The 2 papers which experimentally show that the PCTFP (Ume6-Ash1) has physical interaction

Experimental System Publication Throughput
Affinity Capture-MS Carrozza MJ (2005) Low Throughput
Affinity Capture-MS Carrozza MJ (2005) Low Throughput

The 0 papers which experimentally show that the PCTFP (Ume6-Ash1) has genetic interaction

Experimental System Publication Throughput