2LOW

Solution structure of AR55 in 50% HFIP


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 40 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Preserved Transmembrane Segment Topology, Structure, and Dynamics in Disparate Micellar Environments.

Langelaan, D.N.Pandey, A.Sarker, M.Rainey, J.K.

(2017) J Phys Chem Lett --: 2381-2386

  • DOI: 10.1021/acs.jpclett.7b00867
  • Primary Citation of Related Structures:  2LOT, 2LOV
  • Also Cited By: 2LOU

  • PubMed Abstract: 
  • Detergent micelles are frequently employed as membrane mimetics for solution-state membrane protein nuclear magnetic resonance spectroscopy. Here we compare topology, structure, ps-ns time-scale dynamics, and hydrodynamics of a model protein with one ...

    Detergent micelles are frequently employed as membrane mimetics for solution-state membrane protein nuclear magnetic resonance spectroscopy. Here we compare topology, structure, ps-ns time-scale dynamics, and hydrodynamics of a model protein with one transmembrane (TM) segment (residues 1-55 of the apelin receptor, APJ, a G-protein-coupled receptor) in three distinct, commonly used micellar environments. In each environment, two solvent-protected helical segments connected by a solvent-exposed kink were observed. The break in helical character at the kink was maintained in a helix-stabilizing fluorinated alcohol environment, implying that this structural feature is inherent. Molecular dynamics simulations also substantiate favorable self-assembly of compact protein-micelle complexes with a more dynamic, solvent-exposed kink. Despite the observed similarity in TM segment behavior, micelle-dependent differences were clear in the structure, dynamics, and compactness of the 30-residue, extramembrane N-terminal tail of the protein. This would affect intermolecular interactions and, correspondingly, the functional state of the membrane protein.


    Organizational Affiliation

    Department of Biochemistry & Molecular Biology, Dalhousie University , Halifax, Nova Scotia B3H 4R2, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Apelin receptor
A
64Homo sapiensGene Names: APLNR (AGTRL1, APJ)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Apelin receptor (AR) TM helix 1 in DPC micelles
Find proteins for P35414 (Homo sapiens)
Go to Gene View: APLNR
Go to UniProtKB:  P35414
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 40 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LOW Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-16
    Type: Initial release
  • Version 1.1: 2017-05-24
    Type: Database references