PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34158497-6 2021 The N-retinylidene-phosphatidylethanolamine (NRPE), the physiological lipid substrate of ABCA4, is sandwiched between the two TMDs in the luminal leaflet and is further stabilized by an extended loop from extracellular domain 1. Phenobarbital 138-145 ATP binding cassette subfamily A member 4 Homo sapiens 89-94