6ZO8 | pdb_00006zo8

Minocycline binding to the deep binding pocket of AcrB-G621P


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 
    0.249 (Depositor), 0.252 (DCC) 
  • R-Value Work: 
    0.219 (Depositor), 0.223 (DCC) 
  • R-Value Observed: 
    0.221 (Depositor) 

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 6ZO8

Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history

Literature

Allosteric drug transport mechanism of multidrug transporter AcrB.

Tam, H.K.Foong, W.E.Oswald, C.Herrmann, A.Zeng, H.Pos, K.M.

(2021) Nat Commun 12: 3889-3889

  • DOI: https://doi.org/10.1038/s41467-021-24151-3
  • Primary Citation Related Structures: 
    6ZO5, 6ZO6, 6ZO7, 6ZO8, 6ZO9, 6ZOA, 6ZOB, 6ZOC, 6ZOD, 6ZOE, 6ZOF, 6ZOG, 6ZOH

  • PubMed Abstract: 

    Gram-negative bacteria maintain an intrinsic resistance mechanism against entry of noxious compounds by utilizing highly efficient efflux pumps. The E. coli AcrAB-TolC drug efflux pump contains the inner membrane H + /drug antiporter AcrB comprising three functionally interdependent protomers, cycling consecutively through the loose (L), tight (T) and open (O) state during cooperative catalysis. Here, we present 13 X-ray structures of AcrB in intermediate states of the transport cycle. Structure-based mutational analysis combined with drug susceptibility assays indicate that drugs are guided through dedicated transport channels toward the drug binding pockets. A co-structure obtained in the combined presence of erythromycin, linezolid, oxacillin and fusidic acid shows binding of fusidic acid deeply inside the T protomer transmembrane domain. Thiol cross-link substrate protection assays indicate that this transmembrane domain-binding site can also accommodate oxacillin or novobiocin but not erythromycin or linezolid. AcrB-mediated drug transport is suggested to be allosterically modulated in presence of multiple drugs.


  • Organizational Affiliation
    • Institute of Biochemistry, Goethe-University Frankfurt, Frankfurt am Main, Germany. tamhk60@hotmail.com.

Macromolecule Content 

  • Total Structure Weight: 394.57 kDa 
  • Atom Count: 27,356 
  • Modeled Residue Count: 3,421 
  • Deposited Residue Count: 3,509 
  • Unique protein chains: 2

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Multidrug efflux pump subunit AcrB
A, B, C
1,057Escherichia coli K-12Mutation(s): 1 
Gene Names: acrBacrEb0462JW0451
Membrane Entity: Yes 
UniProt
Find proteins for P31224 (Escherichia coli (strain K12))
Explore P31224 
Go to UniProtKB:  P31224
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP31224
Sequence Annotations
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Reference Sequence
Find similar proteins by:|  3D Structure
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
DARPIN
D, E
169synthetic constructMutation(s): 0 
Gene Names: ARTIFICIAL GENE

Small Molecules

Ligands 17 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PTY

Query on PTY



Download:Ideal Coordinates CCD File
RA [auth C],
U [auth B]
PHOSPHATIDYLETHANOLAMINE
C40 H80 N O8 P
NJGIRBISCGPRPF-KXQOOQHDSA-N
LMU

Query on LMU



Download:Ideal Coordinates CCD File
S [auth B]DODECYL-ALPHA-D-MALTOSIDE
C24 H46 O11
NLEBIOOXCVAHBD-YHBSTRCHSA-N
LMT

Query on LMT



Download:Ideal Coordinates CCD File
F [auth A]
G [auth A]
H [auth A]
I [auth A]
J [auth A]
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
OA [auth C],
PA [auth C],
QA [auth C],
T [auth B]
DODECYL-BETA-D-MALTOSIDE
C24 H46 O11
NLEBIOOXCVAHBD-QKMCSOCLSA-N
MIY
(Subject of Investigation/LOI)

Query on MIY



Download:Ideal Coordinates CCD File
R [auth B](4S,4AS,5AR,12AS)-4,7-BIS(DIMETHYLAMINO)-3,10,12,12A-TETRAHYDROXY-1,11-DIOXO-1,4,4A,5,5A,6,11,12A-OCTAHYDROTETRACENE-2- CARBOXAMIDE
C23 H27 N3 O7
DYKFCLLONBREIL-KVUCHLLUSA-N
LPX

Query on LPX



Download:Ideal Coordinates CCD File
JB [auth C],
KB [auth C]
(2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate
C21 H44 N O7 P
YVYMBNSKXOXSKW-FQEVSTJZSA-N
DDR

Query on DDR



Download:Ideal Coordinates CCD File
V [auth B](2S)-3-hydroxypropane-1,2-diyl didecanoate
C23 H44 O5
GNSDEDOVXZDMKM-NRFANRHFSA-N
DDQ

Query on DDQ



Download:Ideal Coordinates CCD File
LA [auth B]DECYLAMINE-N,N-DIMETHYL-N-OXIDE
C12 H27 N O
ZRKZFNZPJKEWPC-UHFFFAOYSA-N
C14

Query on C14



Download:Ideal Coordinates CCD File
GB [auth C],
O [auth A]
TETRADECANE
C14 H30
BGHCVCJVXZWKCC-UHFFFAOYSA-N
D12

Query on D12



Download:Ideal Coordinates CCD File
EA [auth B],
HB [auth C],
IB [auth C]
DODECANE
C12 H26
SNRUBQQJIBEYMU-UHFFFAOYSA-N
D10

Query on D10



Download:Ideal Coordinates CCD File
BA [auth B]
BB [auth C]
CA [auth B]
CB [auth C]
DB [auth C]
BA [auth B],
BB [auth C],
CA [auth B],
CB [auth C],
DB [auth C],
M [auth A],
N [auth A]
DECANE
C10 H22
DIOQZVSQGTUSAI-UHFFFAOYSA-N
OCT

Query on OCT



Download:Ideal Coordinates CCD File
DA [auth B],
EB [auth C],
FB [auth C]
N-OCTANE
C8 H18
TVMXDCGIABBOFY-UHFFFAOYSA-N
SO4

Query on SO4



Download:Ideal Coordinates CCD File
KA [auth B],
PB [auth C],
QB [auth C]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL

Query on GOL



Download:Ideal Coordinates CCD File
AA [auth B]
AB [auth C]
K [auth A]
L [auth A]
SA [auth C]
AA [auth B],
AB [auth C],
K [auth A],
L [auth A],
SA [auth C],
TA [auth C],
UA [auth C],
VA [auth C],
W [auth B],
WA [auth C],
X [auth B],
XA [auth C],
Y [auth B],
YA [auth C],
Z [auth B],
ZA [auth C]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
HEX

Query on HEX



Download:Ideal Coordinates CCD File
FA [auth B],
LB [auth C],
MB [auth C]
HEXANE
C6 H14
VLKZOEOYAKHREP-UHFFFAOYSA-N
EDO

Query on EDO



Download:Ideal Coordinates CCD File
GA [auth B]
HA [auth B]
IA [auth B]
JA [auth B]
NB [auth C]
GA [auth B],
HA [auth B],
IA [auth B],
JA [auth B],
NB [auth C],
OB [auth C],
P [auth A],
Q [auth A],
RB [auth D],
SB [auth D],
TB [auth D],
UB [auth E]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL

Query on CL



Download:Ideal Coordinates CCD File
NA [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA

Query on NA



Download:Ideal Coordinates CCD File
MA [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free:  0.249 (Depositor), 0.252 (DCC) 
  • R-Value Work:  0.219 (Depositor), 0.223 (DCC) 
  • R-Value Observed: 0.221 (Depositor) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 146.414α = 90
b = 161.617β = 90
c = 245.041γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyDFG-EXC115
German-Israeli Foundation for Research and DevelopmentGermanyI-1202-248.9/2012
European Communitys Seventh Framework ProgrammeEuropean UnionFP7/2007-2013

Revision History  (Full details and data files)

  • Version 1.0: 2021-05-19
    Type: Initial release
  • Version 1.1: 2021-07-07
    Changes: Database references
  • Version 1.2: 2021-07-14
    Changes: Database references
  • Version 1.3: 2024-01-31
    Changes: Data collection, Database references, Refinement description