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, 2LOW, 2LOV

  • 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 transmembrane (TM) segment (residues 1-55 of the apelin receptor, APJ, a G-protein-coupled receptor) in three distinct, commonly used micellar environments ...

    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 Chemistry, Dalhousie University , Halifax, Nova Scotia B3H 4R2, Canada.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Apelin receptorA64Homo sapiensMutation(s): 0 
Gene Names: APLNRAGTRL1APJ
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P35414 (Homo sapiens)
Explore P35414 
Go to UniProtKB:  P35414
PHAROS:  P35414
Protein Feature View
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  • Reference Sequence
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

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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