PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8061055-1 1994 The folate receptor (FR), an essential component in the process of folate uptake in various cells, is known to exist in three isoforms, FR-alpha, FR-beta and FR-gamma, with differential tissue expression. Folic Acid 4-10 folate receptor beta Homo sapiens 146-153