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- EMDB-24653: Multidrug efflux pump subunit AcrB -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-24653
TitleMultidrug efflux pump subunit AcrB
Map data
Sample
  • Complex: Multidrug efflux pump subunit AcrB
    • Protein or peptide: Multidrug efflux pump subunit AcrB
  • Ligand: PHOSPHATIDYLETHANOLAMINE
  • Ligand: DODECANE
Function / homology
Function and homology information


xenobiotic detoxification by transmembrane export across the cell outer membrane / efflux pump complex / periplasmic side of plasma membrane / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / outer membrane-bounded periplasmic space / membrane / identical protein binding / plasma membrane
Similarity search - Function
Hydrophobe/amphiphile efflux-1 HAE1 / Acriflavin resistance protein / Multidrug efflux transporter AcrB TolC docking domain, DN/DC subdomains / AcrB/AcrD/AcrF family
Similarity search - Domain/homology
Multidrug efflux pump subunit AcrB
Similarity search - Component
Biological speciesEscherichia coli (strain K12) (bacteria)
Methodsingle particle reconstruction / cryo EM / negative staining / Resolution: 3.1 Å
AuthorsTrinh TKH / Cabezas A / Catalano C / Qiu W / des Georges A / Guo Y
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)1R01GM132329 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)1R35GM133598 United States
CitationJournal: To Be Published
Title: Multidrug efflux pump subunit AcrB
Authors: Trinh TKH / Cabezas A / Catalano C / Qiu W / des Georges A / Guo Y
History
DepositionAug 9, 2021-
Header (metadata) releaseAug 17, 2022-
Map releaseAug 17, 2022-
UpdateAug 17, 2022-
Current statusAug 17, 2022Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_24653.png

Downloads & links

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Map

FileDownload / File: emd_24653.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.8465 Å
Density
Contour LevelBy AUTHOR: 0.0633
Minimum - Maximum-0.3535092 - 0.6852936
Average (Standard dev.)0.00045903795 (±0.019153198)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 304.74 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_24653_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_24653_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Multidrug efflux pump subunit AcrB

EntireName: Multidrug efflux pump subunit AcrB
Components
  • Complex: Multidrug efflux pump subunit AcrB
    • Protein or peptide: Multidrug efflux pump subunit AcrB
  • Ligand: PHOSPHATIDYLETHANOLAMINE
  • Ligand: DODECANE

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Supramolecule #1: Multidrug efflux pump subunit AcrB

SupramoleculeName: Multidrug efflux pump subunit AcrB / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Escherichia coli (strain K12) (bacteria)
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)

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Macromolecule #1: Multidrug efflux pump subunit AcrB

MacromoleculeName: Multidrug efflux pump subunit AcrB / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 114.736289 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MPNFFIDRPI FAWVIAIIIM LAGGLAILKL PVAQYPTIAP PAVTISASYP GADAKTVQDT VTQVIEQNMN GIDNLMYMSS NSDSTGTVQ ITLTFESGTD ADIAQVQVQN KLQLAMPLLP QEVQQQGVSV EKSSSSFLMV VGVINTDGTM TQEDISDYVA A NMKDAISR ...String:
MPNFFIDRPI FAWVIAIIIM LAGGLAILKL PVAQYPTIAP PAVTISASYP GADAKTVQDT VTQVIEQNMN GIDNLMYMSS NSDSTGTVQ ITLTFESGTD ADIAQVQVQN KLQLAMPLLP QEVQQQGVSV EKSSSSFLMV VGVINTDGTM TQEDISDYVA A NMKDAISR TSGVGDVQLF GSQYAMRIWM NPNELNKFQL TPVDVITAIK AQNAQVAAGQ LGGTPPVKGQ QLNASIIAQT RL TSTEEFG KILLKVNQDG SRVLLRDVAK IELGGENYDI IAEFNGQPAS GLGIKLATGA NALDTAAAIR AELAKMEPFF PSG LKIVYP YDTTPFVKIS IHEVVKTLVE AIILVFLVMY LFLQNFRATL IPTIAVPVVL LGTFAVLAAF GFSINTLTMF GMVL AIGLL VDDAIVVVEN VERVMAEEGL PPKEATRKSM GQIQGALVGI AMVLSAVFVP MAFFGGSTGA IYRQFSITIV SAMAL SVLV ALILTPALCA TMLKPIAKGD HGEGKKGFFG WFNRMFEKST HHYTDSVGGI LRSTGRYLVL YLIIVVGMAY LFVRLP SSF LPDEDQGVFM TMVQLPAGAT QERTQKVLNE VTHYYLTKEK NNVESVFAVN GFGFAGRGQN TGIAFVSLKD WADRPGE EN KVEAITMRAT RAFSQIKDAM VFAFNLPAIV ELGTATGFDF ELIDQAGLGH EKLTQARNQL LAEAAKHPDM LTSVRPNG L EDTPQFKIDI DQEKAQALGV SINDINTTLG AAWGGSYVND FIDRGRVKKV YVMSEAKYRM LPDDIGDWYV RAADGQMVP FSAFSSSRWE YGSPRLERYN GLPSMEILGQ AAPGKSTGEA MELMEQLASK LPTGVGYDWT GMSYQERLSG NQAPSLYAIS LIVVFLCLA ALYESWSIPF SVMLVVPLGV IGALLAATFR GLTNDVYFQV GLLTTIGLSA KNAILIVEFA KDLMDKEGKG L IEATLDAV RMRLRPILMT SLAFILGVMP LVISTGAGSG AQNAVGTGVM GGMVTATVLA IFFVPVFFVV VRRRFSRKNE DI EHSHTVD HHLEHHHHHH

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Macromolecule #2: PHOSPHATIDYLETHANOLAMINE

MacromoleculeName: PHOSPHATIDYLETHANOLAMINE / type: ligand / ID: 2 / Number of copies: 27 / Formula: PTY
Molecular weightTheoretical: 734.039 Da
Chemical component information

ChemComp-PTY:
PHOSPHATIDYLETHANOLAMINE / phospholipid*YM / Phosphatidylethanolamine

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Macromolecule #3: DODECANE

MacromoleculeName: DODECANE / type: ligand / ID: 3 / Number of copies: 8 / Formula: D12
Molecular weightTheoretical: 170.335 Da
Chemical component information

ChemComp-D12:
DODECANE / Dodecane

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Experimental details

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Structure determination

Methodnegative staining, cryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 5
StainingType: NEGATIVE / Material: 2% uranyl acetate
GridModel: UltrAuFoil R0.6/1 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 75.9 e/Å2

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Image processing

Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 73352

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Atomic model buiding 1

Initial modelPDB ID:

6baj

RefinementSpace: REAL / Protocol: OTHER
Output model

PDB-7rr6:
Multidrug efflux pump subunit AcrB

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