5KTF

Structure of the C-terminal transmembrane domain of scavenger receptor BI (SR-BI)

  • Classification: SIGNALING PROTEIN
  • Organism(s): Mus musculus
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2016-07-11 Released: 2017-03-08 
  • Deposition Author(s): Chadwick, A.C., Peterson, F.C., Volkman, B.F., Sahoo, D.
  • Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI), National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), American Heart Association

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

NMR Structure of the C-Terminal Transmembrane Domain of the HDL Receptor, SR-BI, and a Functionally Relevant Leucine Zipper Motif.

Chadwick, A.C.Jensen, D.R.Hanson, P.J.Lange, P.T.Proudfoot, S.C.Peterson, F.C.Volkman, B.F.Sahoo, D.

(2017) Structure 25: 446-457

  • DOI: 10.1016/j.str.2017.01.001
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The interaction of high-density lipoprotein (HDL) with its receptor, scavenger receptor BI (SR-BI), is critical for lowering plasma cholesterol levels and reducing the risk for cardiovascular disease. The HDL/SR-BI complex facilitates delivery of cho ...

    The interaction of high-density lipoprotein (HDL) with its receptor, scavenger receptor BI (SR-BI), is critical for lowering plasma cholesterol levels and reducing the risk for cardiovascular disease. The HDL/SR-BI complex facilitates delivery of cholesterol into cells and is likely mediated by receptor dimerization. This work describes the use of nuclear magnetic resonance (NMR) spectroscopy to generate the first high-resolution structure of the C-terminal transmembrane domain of SR-BI. This region of SR-BI harbors a leucine zipper dimerization motif, which when mutated impairs the ability of the receptor to bind HDL and mediate cholesterol delivery. These losses in function correlate with the inability of SR-BI to form dimers. We also identify juxtamembrane regions of the extracellular domain of SR-BI that may interact with the lipid surface to facilitate cholesterol transport functions of the receptor.


    Organizational Affiliation

    Division of Endocrinology, Metabolism & Clinical Nutrition, Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Biochemistry, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA. Electronic address: dsahoo@mcw.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Scavenger receptor class B member 1
A
73Mus musculusMutation(s): 0 
Gene Names: Scarb1Srb1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
High-Density Lipoprotein (HDL) Receptors
Protein: 
C-terminal transmembrane domain of scavenger receptor BI (SR-BI)
Find proteins for Q61009 (Mus musculus)
Go to UniProtKB:  Q61009
NIH Common Fund Data Resources
IMPC  MGI:893578
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 
  • OLDERADO: 5KTF Olderado

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)United StatesR01HL58012
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01AI058072
American Heart AssociationUnited StatesAHA14PRE185800221

Revision History 

  • Version 1.0: 2017-03-08
    Type: Initial release
  • Version 1.1: 2017-03-22
    Changes: Database references
  • Version 1.2: 2017-09-20
    Changes: Author supporting evidence
  • Version 1.3: 2019-12-04
    Changes: Author supporting evidence, Data collection