PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3402389-7 1988 E2 competed with the specific uptake of [3H]testosterone in intact cells at an inhibition constant (Ki) value of 15 nM, thus indicating direct interaction of E2 with the androgen receptor. Testosterone 44-56 androgen receptor Homo sapiens 170-187