5-HT4 RECEPTOR This model is 5-HT4 RECEPTOR constructed by FAMS Ligand&Complex based on 1F88 HEADER 5-HYDROXYTRYPTAMINE 4 RECEPTOR 31-JLY-03 SOURCE HOMO SAPIENS REMARK CHAIN_A Q9UBM6 (16-351) REMARK RET RETINAL (COMFORMATION FOUR TYPE) REMARD SET SEROTONIN figure legend ligand serotonin shown by CPK