Rap1 binding and a lipid-dependent helix in talin F1 domain promote integrin activation in tandem. - Gingras AR; Lagarrigue F; Cuevas MN; Valadez AJ; Zorovich M; McLaughlin W; Lopez-Ramirez MA; Seban N; Ley K; Kiosses WB; Ginsberg MH (The Journal of cell biology, 2019)