PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8855260-3 1996 The mechanism of fusion activation depends on the unique ability of synexin to bind and hydrolyze GTP in a calcium-dependent manner, both in vitro and in vivo in streptolysin O-permeabilized chromaffin cells. chromaffin 191-201 annexin A7 Homo sapiens 68-75 8855260-5 1996 Previous immunolocalization studies place synexin at exocytotic sites in chromaffin cells, and we conclude that synexin is an atypical G protein that may be responsible for both detecting and mediating the Ca2+/GTP signal for exocytotic membrane fusion. chromaffin 73-83 annexin A7 Homo sapiens 112-119