PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9885294-6 1999 In contrast to the broad substrate specificity of the MDR1 P-glycoprotein, MRP1 selectively transported C6-NBD-glucosylceramide and C6-NBD-sphingomyelin, the latter only when it was released from the Golgi lumen by brefeldin A. Brefeldin A 215-226 ATP binding cassette subfamily C member 1 Homo sapiens 75-79