PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8474430-1 1993 The functional significance of the conserved amino acids within transmembrane regions II and VII of the human 5-hydroxytryptamine (5-HT)1A receptor was analyzed by oligonucleotide-directed mutagenesis followed by transient expression of the mutated receptor genes in COS-1 cells. Oligonucleotides 164-179 5-hydroxytryptamine receptor 1A Homo sapiens 110-147