PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17176053-5 2006 The central regions of the intracellular loops of Ste2 were all highly accessible to MTSEA-biotin. N-biotinylaminoethyl methanethiosulfonate 85-97 alpha-factor pheromone receptor STE2 Saccharomyces cerevisiae S288C 50-54