PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23442682-2 2012 The polygalacturonic acid (AE-CWI) contained 95% GalA and its (13)C NMR spectrum showed signals at delta 98.9, 78.0, 71.4, 69.1, 68.4, and 175.1 from C-1, C-4, C-5, C-3, C-2, and C-6 respectively, from (1 4)-linked alpha-GalpA units. polygalacturonic acid 4-25 complement component 3 Mus musculus 165-168