PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8194801-9 1993 There are phase fluctuations of the ctO2/pO2 dissociation curve in the reference interval, expressed in the "lowering" of P50 and p90 in mild hypoxia and the "centering" or "raising" of their values in severe hypoxia. PO-2 41-44 cellular inhibitor of PP2A Homo sapiens 130-133