4IB4

Crystal structure of the chimeric protein of 5-HT2B-BRIL in complex with ergotamine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history

Literature

Structural features for functional selectivity at serotonin receptors.

Wacker, D.Wang, C.Katritch, V.Han, G.W.Huang, X.P.Vardy, E.McCorvy, J.D.Jiang, Y.Chu, M.Siu, F.Y.Liu, W.Xu, H.E.Cherezov, V.Roth, B.L.Stevens, R.C.

(2013) Science 340: 615-619

  • DOI: 10.1126/science.1232808

  • PubMed Abstract: 
  • Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or noncanonical signaling pathways via a phenomenon known as functional selectivity or biased signaling. We report biochemical studies showing that the h ...

    Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or noncanonical signaling pathways via a phenomenon known as functional selectivity or biased signaling. We report biochemical studies showing that the hallucinogen lysergic acid diethylamide, its precursor ergotamine (ERG), and related ergolines display strong functional selectivity for β-arrestin signaling at the 5-HT2B 5-hydroxytryptamine (5-HT) receptor, whereas they are relatively unbiased at the 5-HT1B receptor. To investigate the structural basis for biased signaling, we determined the crystal structure of the human 5-HT2B receptor bound to ERG and compared it with the 5-HT1B/ERG structure. Given the relatively poor understanding of GPCR structure and function to date, insight into different GPCR signaling pathways is important to better understand both adverse and favorable therapeutic activities.


    Organizational Affiliation

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chimera protein of human 5-hydroxytryptamine receptor 2B and E. Coli soluble cytochrome b562
A
430Escherichia coliHomo sapiens
This entity is chimeric
Gene Names: cybC, HTR2B
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
5-HT2B serotonin receptor with bound ergotamine
Find proteins for P0ABE7 (Escherichia coli)
Go to UniProtKB:  P0ABE7
Find proteins for P41595 (Homo sapiens)
Go to Gene View: HTR2B
Go to UniProtKB:  P41595
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OLB
Query on OLB

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A
(2S)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
C21 H40 O4
RZRNAYUHWVFMIP-QJRAZLAKSA-N
 Ligand Interaction
OLC
Query on OLC

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A
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
1-Oleoyl-R-glycerol
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
OLA
Query on OLA

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Download CCD File 
A
OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
 Ligand Interaction
PEG
Query on PEG

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Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
ERM
Query on ERM

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Download CCD File 
A
Ergotamine
C33 H35 N5 O5
XCGSFFUVFURLIX-VFGNJEKYSA-N
 Ligand Interaction
PLM
Query on PLM

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A
PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N
 Ligand Interaction
CLR
Query on CLR

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Download CCD File 
A
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 60.571α = 90.00
b = 119.750β = 90.00
c = 170.607γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
HKL-3000data scaling
Blu-Icedata collection
PHASERphasing
PHENIXrefinement
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-13
    Type: Initial release
  • Version 1.1: 2013-04-03
    Type: Database references
  • Version 1.2: 2013-04-10
    Type: Database references
  • Version 1.3: 2013-05-15
    Type: Database references
  • Version 1.4: 2017-06-07
    Type: Database references, Structure summary
  • Version 1.5: 2017-11-15
    Type: Refinement description