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- EMDB-40974: BmrCD_OC-ADPVi -

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Basic information

Entry
Database: EMDB / ID: EMD-40974
TitleBmrCD_OC-ADPVi
Map dataprotein0118
Sample
  • Complex: Heterodimeric BmrCD with ligands ATP/AOV and lipids
    • Protein or peptide: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheI
    • Protein or peptide: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheH
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
  • Ligand: ADP ORTHOVANADATE
Keywordstransporter / lipids / MEMBRANE PROTEIN / TRANSLOCASE
Function / homology
Function and homology information


ATPase-coupled lipid transmembrane transporter activity / Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate / ATPase-coupled transmembrane transporter activity / ABC-type transporter activity / transmembrane transport / response to antibiotic / ATP hydrolysis activity / ATP binding / plasma membrane
Similarity search - Function
Type 1 protein exporter / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. ...Type 1 protein exporter / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Probable multidrug resistance ABC transporter ATP-binding/permease protein YheH / Probable multidrug resistance ABC transporter ATP-binding/permease protein YheI
Similarity search - Component
Biological speciesBacillus subtilis subsp. subtilis str. 168 (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.96 Å
AuthorsTang Q / Hassane M
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)NIGMS R01-128087 United States
CitationJournal: Nat Commun / Year: 2023
Title: Asymmetric conformations and lipid interactions shape the ATP-coupled cycle of a heterodimeric ABC transporter.
Authors: Qingyu Tang / Matt Sinclair / Hale S Hasdemir / Richard A Stein / Erkan Karakas / Emad Tajkhorshid / Hassane S Mchaourab /
Abstract: Here we used cryo-electron microscopy (cryo-EM), double electron-electron resonance spectroscopy (DEER), and molecular dynamics (MD) simulations, to capture and characterize ATP- and substrate-bound ...Here we used cryo-electron microscopy (cryo-EM), double electron-electron resonance spectroscopy (DEER), and molecular dynamics (MD) simulations, to capture and characterize ATP- and substrate-bound inward-facing (IF) and occluded (OC) conformational states of the heterodimeric ATP binding cassette (ABC) multidrug exporter BmrCD in lipid nanodiscs. Supported by DEER analysis, the structures reveal that ATP-powered isomerization entails changes in the relative symmetry of the BmrC and BmrD subunits that propagates from the transmembrane domain to the nucleotide binding domain. The structures uncover asymmetric substrate and Mg binding which we hypothesize are required for triggering ATP hydrolysis preferentially in one of the nucleotide-binding sites. MD simulations demonstrate that multiple lipid molecules differentially bind the IF versus the OC conformation thus establishing that lipid interactions modulate BmrCD energy landscape. Our findings are framed in a model that highlights the role of asymmetric conformations in the ATP-coupled transport with general implications to the mechanism of ABC transporters.
History
DepositionJun 2, 2023-
Header (metadata) releaseNov 15, 2023-
Map releaseNov 15, 2023-
UpdateNov 22, 2023-
Current statusNov 22, 2023Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_40974.png

Downloads & links

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Map

FileDownload / File: emd_40974.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationprotein0118
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.65 Å/pix.
x 480 pix.
= 310.56 Å		0.65 Å/pix.
x 480 pix.
= 310.56 Å		0.65 Å/pix.
x 480 pix.
= 310.56 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.647 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy EMDB: 0.1
Minimum - Maximum-0.5136276 - 0.9414908
Average (Standard dev.)-0.00025571752 (±0.016932048)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 310.56 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half Map 1

Fileemd_40974_half_map_1.map
AnnotationHalf Map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map 2

Fileemd_40974_half_map_2.map
AnnotationHalf Map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Heterodimeric BmrCD with ligands ATP/AOV and lipids

EntireName: Heterodimeric BmrCD with ligands ATP/AOV and lipids
Components
  • Complex: Heterodimeric BmrCD with ligands ATP/AOV and lipids
    • Protein or peptide: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheI
    • Protein or peptide: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheH
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
  • Ligand: ADP ORTHOVANADATE

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Supramolecule #1: Heterodimeric BmrCD with ligands ATP/AOV and lipids

SupramoleculeName: Heterodimeric BmrCD with ligands ATP/AOV and lipids / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria)

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Macromolecule #1: Probable multidrug resistance ABC transporter ATP-binding/permeas...

MacromoleculeName: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheI
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate
Source (natural)Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria)
Molecular weightTheoretical: 67.589922 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MGSSHHHHHH SSGLVPRGSH MLEFSVLKKL GWFFKAYWLR YTIAIVLLLA VNVIEMFPPK LLGNAIDDMK AGAFTAEGLL FYIGIFFVL TAAVYIMSYF WMHQLFGGAN LMEKILRTKL MGHLLTMSPP FYEKNRTGDL MARGTNDLQA VSLTTGFGIL T LVDSTMFM ...String:
MGSSHHHHHH SSGLVPRGSH MLEFSVLKKL GWFFKAYWLR YTIAIVLLLA VNVIEMFPPK LLGNAIDDMK AGAFTAEGLL FYIGIFFVL TAAVYIMSYF WMHQLFGGAN LMEKILRTKL MGHLLTMSPP FYEKNRTGDL MARGTNDLQA VSLTTGFGIL T LVDSTMFM MTIFLTMGFL ISWKLTFAAI IPLPVMAIAI SLYGSKIHER FTEAQNAFGA LNDRVLESVS GVRVIRAYVQ ET NDVRRFN EMTADVYQKN MKVAFIDSLF EPTVKLLVGA SYLIGLGYGA FLVFRNELTL GELVSFNVYL GMMIWPMFAI GEL INVMQR GNASLDRVNE TLSYETDVTD PKQPADLKEP GDIVFSHVSF TYPSSTSDNL QDISFTVRKG QTVGIAGKTG SGKT TIIKQ LLRQYPPGEG SITFSGVPIQ QIPLDRLRGW IGYVPQDHLL FSRTVKENIL YGKQDATDKE VQQAIAEAHF EKDLH MLPS GLETMVGEKG VALSGGQKQR ISIARALMAN PEILILDDSL SAVDAKTEAA IIKNIRENRK GKTTFILTHR LSAVEH ADL ILVMDGGVIA ERGTHQELLA NNGWYREQYE RQQLFTAEEG GAGA

UniProtKB: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheI

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Macromolecule #2: Probable multidrug resistance ABC transporter ATP-binding/permeas...

MacromoleculeName: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheH
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
EC number: Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate
Source (natural)Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria)
Molecular weightTheoretical: 77.467078 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MKIGKTLWRY ALLYRKLLIT AVLLLTVAVG AELTGPFIGK KMIDDHILGI EKTWYEAAEK DKNAVQFHGV SYVREDRLQE PVSKAKEAH IYQVGMAFYF VDQAVSFDGN RTVSDGKLTI TNGDKSRAYA AEKLTKQELF QFYQPEIKGM VLLICLYGGL L VFSVFFQY ...String:
MKIGKTLWRY ALLYRKLLIT AVLLLTVAVG AELTGPFIGK KMIDDHILGI EKTWYEAAEK DKNAVQFHGV SYVREDRLQE PVSKAKEAH IYQVGMAFYF VDQAVSFDGN RTVSDGKLTI TNGDKSRAYA AEKLTKQELF QFYQPEIKGM VLLICLYGGL L VFSVFFQY GQHYLLQMSA NRIIQKMRQD VFSHIQKMPI RYFDNLPAGK VVARITNDTE AIRDLYVTVL STFVTSGIYM FG IFTALFL LDVKLAFVCL AIVPIIWLWS VIYRRYASYY NQKIRSINSD INAKMNESIQ GMTIIQAFRH QKETMREFEE LNE SHFYFQ NRMLNLNSLM SHNLVNVIRN LAFVCLIWHF GGASLNAAGI VSIGVLYAFV DYLNRLFQPI TGIVNQFSKL ELAR VSAGR VFELLEEKNT EEAGEPAKER ALGRVEFRDV SFAYQEGEEV LKHISFTAQK GETVALVGHT GSGKSSILNL LFRFY DAQK GDVLIDGKSI YNMSRQELRS HMGIVLQDPY LFSGTIGSNV SLDDERMTEE EIKNALRQVG AEPLLKKLPK GINEPV IEK GSTLSSGERQ LISFARALAF DPAILILDEA TAHIDTETEA VIQKALDVVK QGRTTFVIAH RLSTIRNADQ ILVLDKG EI VERGNHEELM ALEGQYYQMY ELQKGQKHSI ALEHHHHHH

UniProtKB: Probable multidrug resistance ABC transporter ATP-binding/permease protein YheH

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Macromolecule #3: ADENOSINE-5'-TRIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 3 / Number of copies: 1 / Formula: ATP
Molecular weightTheoretical: 507.181 Da
Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

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Macromolecule #4: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 4 / Number of copies: 2 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #5: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(tri...

MacromoleculeName: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
type: ligand / ID: 5 / Number of copies: 21 / Formula: POV
Molecular weightTheoretical: 760.076 Da
Chemical component information

ChemComp-POV:
(2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate / phospholipid*YM

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Macromolecule #6: ADP ORTHOVANADATE

MacromoleculeName: ADP ORTHOVANADATE / type: ligand / ID: 6 / Number of copies: 1 / Formula: AOV
Molecular weightTheoretical: 544.156 Da
Chemical component information

ChemComp-AOV:
ADP ORTHOVANADATE / energy-carrying molecule analogue*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration3 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 15.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.4 µm
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8fhk

Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.96 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 185953
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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