PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32829861-3 2020 MCP4 had a homogalacturonan enriched backbone with a high degree (46 %) of methoxylation and a low DB (~41 %) of RG-I branches. polygalacturonic acid 11-27 C-C motif chemokine ligand 13 Homo sapiens 0-4