4IB4

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.227 

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
  • Primary Citation of Related Structures:  
    4IB4

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chimera protein of human 5-hydroxytryptamine receptor 2B and E. Coli soluble cytochrome b562A430Homo sapiensEscherichia coliMutation(s): 4 
Gene Names: HTR2B
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs): Class A
Protein: 
5-HT2B serotonin receptor with bound ergotamine
Find proteins for P41595 (Homo sapiens)
Explore P41595 
Go to UniProtKB:  P41595
NIH Common Fund Data Resources
PHAROS  P41595
Find proteins for P0ABE7 (Escherichia coli)
Explore P0ABE7 
Go to UniProtKB:  P0ABE7
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ERM
Query on ERM

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

Download CCD File 
A
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N
 Ligand Interaction
OLC
Query on OLC

Download CCD File 
A
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
OLB
Query on OLB

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

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A
OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
 Ligand Interaction
PLM
Query on PLM

Download CCD File 
A
PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.227 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.571α = 90
b = 119.75β = 90
c = 170.607γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
PHASERphasing
PHENIXrefinement
BUSTERrefinement
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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