p21-Activated Kinase 1 (Pak1) Phosphorylates BAD Directly at Serine 111 In Vitro and Indirectly through Raf-1 at Serine 112 Ye, Diana Z. ; Jin, Shenghao ; Zhuo, Ya ; Field, Jeffrey Abstract Publication: PLoS ONE Pub Date: November 2011 DOI: 10.1371/journal.pone.0027637 Bibcode: 2011PLoSO...627637Y