5KCB

The structure of SAV2435 bound to ethidium bromide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.101 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution Binding and Structural Analyses Reveal Potential Multidrug Resistance Functions for SAV2435 and CTR107 and Other GyrI-like Proteins.

Moreno, A.Froehlig, J.R.Bachas, S.Gunio, D.Alexander, T.Vanya, A.Wade, H.

(2016) Biochemistry 55: 4850-4863

  • DOI: 10.1021/acs.biochem.6b00651
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Multidrug resistance (MDR) refers to the acquired ability of cells to tolerate a broad range of toxic compounds. One mechanism cells employ is to increase the level of expression of efflux pumps for the expulsion of xenobiotics. A key feature uniting ...

    Multidrug resistance (MDR) refers to the acquired ability of cells to tolerate a broad range of toxic compounds. One mechanism cells employ is to increase the level of expression of efflux pumps for the expulsion of xenobiotics. A key feature uniting efflux-related mechanisms is multidrug (MD) recognition, either by efflux pumps themselves or by their transcriptional regulators. However, models describing MD binding by MDR effectors are incomplete, underscoring the importance of studies focused on the recognition elements and key motifs that dictate polyspecific binding. One such motif is the GyrI-like domain, which is found in several MDR proteins and is postulated to have been adapted for small-molecule binding and signaling. Here we report the solution binding properties and crystal structures of two proteins containing GyrI-like domains, SAV2435 and CTR107, bound to various ligands. Furthermore, we provide a comparison with deposited crystal structures of GyrI-like proteins, revealing key features of GyrI-like domains that not only support polyspecific binding but also are conserved among GyrI-like domains. Together, our studies suggest that GyrI-like domains perform evolutionarily conserved functions connected to multidrug binding and highlight the utility of these types of studies for elucidating mechanisms of MDR.


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine , 725 North Wolfe Street, Baltimore, Maryland 21205, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SA2223 protein
A
165Staphylococcus aureus (strain N315)
Find proteins for A0A0H3JRN6 (Staphylococcus aureus (strain N315))
Go to UniProtKB:  A0A0H3JRN6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ET
Query on ET

Download SDF File 
Download CCD File 
A
ETHIDIUM
C21 H20 N3
QTANTQQOYSUMLC-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.101 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.199 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.720α = 90.00
b = 73.720β = 90.00
c = 68.530γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
XDSdata reduction
PHASERphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-06-06 
  • Released Date: 2016-08-24 
  • Deposition Author(s): Moreno, A., Wade, H.

Funding OrganizationCountryGrant Number
Arnold and Mabel Beckman Young Investigator AwardUnited States--
National Science Foundation (United States)United StatesMCB-0953430

Revision History 

  • Version 1.0: 2016-08-24
    Type: Initial release
  • Version 1.1: 2016-09-07
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Author supporting evidence, Database references, Derived calculations