PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34126011-0 2021 Conjugated Cationic Pp-x Formed on g-C3N4 for Photocatalyzed Water Splitting. c3n4 37-41 protein phosphatase 4 catalytic subunit Homo sapiens 20-24