PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17003452-1 2006 PURPOSE: To record the distribution and spectrum of human retinal pigment epithelial cell lipofuscin (LF) by two-photon-excited fluorescence (TPEF) and confocal laser scanning microscopy. Lipofuscin 90-100 transmembrane protein with EGF like and two follistatin like domains 2 Homo sapiens 142-146