. 2001 Mar 5;152(5):1007–1018. doi: 10.1083/jcb.152.5.1007

Table 1.

Direct Interaction between ILK and Integrins Is Not Conserved in Drosophila

	Human β₁ integrin	Drosophila β_PS integrin
Empty vector	−	−
Human ILK	++	−
Drosophila ILK	+/−	−

Yeast two-hybrid assay for direct protein–protein interactions between ILK and the cytoplasmic tail of β integrins in humans and Drosophila. ++, strong lacZ expression, detectable after 20 min at 30°C. +/−, weak lacZ expression only just detectable above background after 2 h at 30°C. −, lacZ expression at the level of the empty prey vector control.