PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21820390-11 2011 This is most likely because the phosphatidylserine flippase complex of ATP8B1-CDC50A counteracts the destabilization of the membrane that occurs when ABCB4 flops phosphatidylcholine. Phosphatidylcholines 162-181 transmembrane protein 30A Mus musculus 78-84