4IB4
Crystal structure of the chimeric protein of 5-HT2B-BRIL in complex with ergotamine
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004930 | molecular_function | G protein-coupled receptor activity |
| A | 0004993 | molecular_function | G protein-coupled serotonin receptor activity |
| A | 0005506 | molecular_function | iron ion binding |
| A | 0005886 | cellular_component | plasma membrane |
| A | 0007186 | biological_process | G protein-coupled receptor signaling pathway |
| A | 0009055 | molecular_function | electron transfer activity |
| A | 0016020 | cellular_component | membrane |
| A | 0020037 | molecular_function | heme binding |
| A | 0022900 | biological_process | electron transport chain |
| A | 0042597 | cellular_component | periplasmic space |
| A | 0046872 | molecular_function | metal ion binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE ERM A 2001 |
| Chain | Residue |
| A | ASP135 |
| A | ALA225 |
| A | TRP337 |
| A | PHE340 |
| A | ASN344 |
| A | LEU347 |
| A | GLN359 |
| A | HOH2020 |
| A | VAL136 |
| A | SER139 |
| A | THR140 |
| A | VAL208 |
| A | LEU209 |
| A | THR210 |
| A | LYS211 |
| A | MET218 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE PLM A 2002 |
| Chain | Residue |
| A | ILE66 |
| A | THR343 |
| A | ILE395 |
| A | THR396 |
| A | CYS397 |
| site_id | AC3 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CLR A 2003 |
| Chain | Residue |
| A | GLY70 |
| A | THR73 |
| A | TYR394 |
| A | TYR399 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE OLC A 2004 |
| Chain | Residue |
| A | SER150 |
| A | MET233 |
| A | THR240 |
| A | LEU326 |
| A | HOH2017 |
| site_id | AC5 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE OLB A 2005 |
| Chain | Residue |
| A | PRO191 |
| A | ILE192 |
| site_id | AC6 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE OLB A 2006 |
| Chain | Residue |
| A | MET360 |
| A | TYR399 |
| A | OLB2007 |
| site_id | AC7 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE OLB A 2007 |
| Chain | Residue |
| A | LEU81 |
| A | TYR399 |
| A | OLB2006 |
| site_id | AC8 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE OLA A 2008 |
| Chain | Residue |
| A | TRP56 |
| site_id | AC9 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE OLA A 2009 |
| Chain | Residue |
| A | GLY185 |
| A | LYS193 |
| A | ASP216 |
| A | PHE217 |
| site_id | BC1 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE PEG A 2010 |
| Chain | Residue |
| A | TYR380 |
| A | ASN384 |
| site_id | BC2 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE PEG A 2011 |
| Chain | Residue |
| A | ILE182 |
Functional Information from PROSITE/UniProt
| site_id | PS00237 |
| Number of Residues | 17 |
| Details | G_PROTEIN_RECEP_F1_1 G-protein coupled receptors family 1 signature. ASIwHLCAISVDRYIaI |
| Chain | Residue | Details |
| A | ALA141-ILE157 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | Binding site: {"description":"axial binding residue"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 22 |
| Details | Transmembrane: {"description":"Helical; Name=1","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 29 |
| Details | Topological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 22 |
| Details | Transmembrane: {"description":"Helical; Name=2","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 29 |
| Details | Topological domain: {"description":"Extracellular","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 21 |
| Details | Transmembrane: {"description":"Helical; Name=3","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI7 |
| Number of Residues | 20 |
| Details | Transmembrane: {"description":"Helical; Name=4","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI8 |
| Number of Residues | 22 |
| Details | Transmembrane: {"description":"Helical; Name=5","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI9 |
| Number of Residues | 20 |
| Details | Transmembrane: {"description":"Helical; Name=6","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI10 |
| Number of Residues | 21 |
| Details | Transmembrane: {"description":"Helical; Name=7","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24357322","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"30127358","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36087581","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI11 |
| Number of Residues | 2 |
| Details | Motif: {"description":"DRY motif; important for ligand-induced conformation changes","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI12 |
| Number of Residues | 3 |
| Details | Motif: {"description":"[DE]RFG motif; may stabilize a conformation that preferentially activates signaling via beta-arrestin family members","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI13 |
| Number of Residues | 4 |
| Details | Motif: {"description":"NPxxY motif; important for ligand-induced conformation changes and signaling","evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI14 |
| Number of Residues | 3 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"23519215","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4IB4","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4NC3","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI15 |
| Number of Residues | 1 |
| Details | Site: {"description":"Hydrophobic barrier that decreases the speed of ligand binding and dissociation","evidences":[{"source":"PubMed","id":"28129538","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI16 |
| Number of Residues | 1 |
| Details | Lipidation: {"description":"S-palmitoyl cysteine","evidences":[{"evidenceCode":"ECO:0000255"}]} |
| Chain | Residue | Details |






