PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17379184-5 2007 We show that disulfide bridges between Cys112 and Cys145 located within TM3 and TM4, respectively, are of critical importance for 5-HT(4)R dimer formation. Disulfides 13-22 5-hydroxytryptamine receptor 4 Homo sapiens 130-138 17379184-3 2007 Using co-immunoprecipitation and Bioluminescence Resonance Energy Transfer (BRET) techniques, we show here that 5-HT(4)R homodimerization but not 5-HT(4)R-beta(2) adrenergic receptor (beta(2)AR) heterodimerization is largely decreased under reducing conditions suggesting the participation of disulfide bonds in 5-HT(4)R dimerization. Disulfides 293-302 5-hydroxytryptamine receptor 4 Homo sapiens 112-120