PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11139587-1 2001 The medium (mu) chains of the adaptor protein (AP) complexes AP-1, AP-2, and AP-3 recognize distinct subsets of tyrosine-based (YXXphi) sorting signals found within the cytoplasmic domains of integral membrane proteins. Tyrosine 112-120 transcription factor AP-2 alpha Homo sapiens 67-71