PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25966627-3 2015 The increase in F-actin during capacitation depends upon inactivation of the actin severing protein, gelsolin, by its binding to phosphatydilinositol-4, 5-bisphosphate (PIP 2 ) and its phosphorylation on tyrosine-438 by Src. phosphatydilinositol-4, 5-bisphosphate 129-167 gelsolin Homo sapiens 101-109 23791551-2 2013 In previous studies, we demonstrated that the increase in F-actin during capacitation depends upon inactivation of the actin severing protein, gelsolin, by its binding to phosphatydilinositol-4, 5-bisphosphate (PIP2). phosphatydilinositol-4, 5-bisphosphate 171-209 gelsolin Homo sapiens 143-151