PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25497737-6 2015 Ca(2+) flux, chemotaxis, and heparin binding assays showed that the monomer form of XCL2 is responsible for G protein-coupled receptor activation while the dimeric form is important for GAG binding. Glycosaminoglycans 186-189 X-C motif chemokine ligand 2 Homo sapiens 84-88