PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9634539-4 1998 This structural arrangement, which occurs within either the invariant region or the extracellular domain of the variant region, is important for CD44-mediated communication between extracellular matrix materials [ECM-hyaluronic acid (HA), collagen and fibronectin] and intracellular protein components (e.g cytoskeletal proteins and various regulatory enzymes). ha 234-236 CD44 molecule (Indian blood group) Homo sapiens 145-149