4RWF

Crystal structure of the CLR:RAMP2 extracellular domain heterodimer with bound adrenomedullin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.159 

wwPDB Validation 3D Report Full Report



Literature

Structural Basis for Receptor Activity-Modifying Protein-Dependent Selective Peptide Recognition by a G Protein-Coupled Receptor.

Booe, J.M.Walker, C.S.Barwell, J.Kuteyi, G.Simms, J.Jamaluddin, M.A.Warner, M.L.Bill, R.M.Harris, P.W.Brimble, M.A.Poyner, D.R.Hay, D.L.Pioszak, A.A.

(2015) Mol Cell 58: 1-13

  • DOI: 10.1016/j.molcel.2015.04.018
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Association of receptor activity-modifying proteins (RAMP1-3) with the G protein-coupled receptor (GPCR) calcitonin receptor-like receptor (CLR) enables selective recognition of the peptides calcitonin gene-related peptide (CGRP) and adrenomedullin ( ...

    Association of receptor activity-modifying proteins (RAMP1-3) with the G protein-coupled receptor (GPCR) calcitonin receptor-like receptor (CLR) enables selective recognition of the peptides calcitonin gene-related peptide (CGRP) and adrenomedullin (AM) that have diverse functions in the cardiovascular and lymphatic systems. How peptides selectively bind GPCR:RAMP complexes is unknown. We report crystal structures of CGRP analog-bound CLR:RAMP1 and AM-bound CLR:RAMP2 extracellular domain heterodimers at 2.5 and 1.8 Å resolutions, respectively. The peptides similarly occupy a shared binding site on CLR with conformations characterized by a β-turn structure near their C termini rather than the α-helical structure common to peptides that bind related GPCRs. The RAMPs augment the binding site with distinct contacts to the variable C-terminal peptide residues and elicit subtly different CLR conformations. The structures and accompanying pharmacology data reveal how a class of accessory membrane proteins modulate ligand binding of a GPCR and may inform drug development targeting CLR:RAMP complexes.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA. Electronic address: augen-pioszak@ouhsc.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Maltose transporter subunit, Receptor activity-modifying protein 2, Calcitonin gene-related peptide type 1 receptor fusion proteinA591Escherichia coli K-12Homo sapiensMutation(s): 0 
Gene Names: malECE10_4748RAMP2CALCRLCGRPR
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Explore P0AEX9 
Go to UniProtKB:  P0AEX9
Find proteins for O60895 (Homo sapiens)
Explore O60895 
Go to UniProtKB:  O60895
NIH Common Fund Data Resources
PHAROS  O60895
Find proteins for Q16602 (Homo sapiens)
Explore Q16602 
Go to UniProtKB:  Q16602
NIH Common Fund Data Resources
PHAROS  Q16602
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
AdrenomedullinB29Homo sapiensMutation(s): 1 
Gene Names: ADMAM
Find proteins for P35318 (Homo sapiens)
Explore P35318 
Go to UniProtKB:  P35318
NIH Common Fund Data Resources
PHAROS  P35318
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Oligosaccharides
Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
C
2 N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download CCD File 
A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.159 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.454α = 90
b = 84.283β = 90
c = 115.764γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
MD2data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2014-12-03 
  • Released Date: 2015-05-20 
  • Deposition Author(s): Booe, J., Pioszak, A.

Revision History 

  • Version 1.0: 2015-05-20
    Type: Initial release
  • Version 1.1: 2015-05-27
    Changes: Database references
  • Version 1.2: 2017-08-16
    Changes: Refinement description, Source and taxonomy
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary