PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18631460-0 1969 An electron microscope study of the influence of divalent ions on myosin filament formation in chicken gizzard extracts and homogenates. divalent 49-57 myosin, heavy chain 15 Gallus gallus 66-72