+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-29701 | |||||||||
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Title | BceAB-S nucleotide free BceS state 2 | |||||||||
Map data | Final map | |||||||||
Sample |
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Keywords | ABC transporter / histidine kinase / antimicrobial / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information protein histidine kinase activity / histidine kinase / phosphorelay signal transduction system / transmembrane transporter activity / transmembrane transport / response to antibiotic / ATP hydrolysis activity / ATP binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Bacillus subtilis subsp. subtilis str. 168 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||
Authors | George NL / Orlando BJ | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2023 Title: Architecture of a complete Bce-type antimicrobial peptide resistance module. Authors: Natasha L George / Benjamin J Orlando / Abstract: Gram-positive bacteria synthesize and secrete antimicrobial peptides that target the essential process of peptidoglycan synthesis. These antimicrobial peptides not only regulate the dynamics of ...Gram-positive bacteria synthesize and secrete antimicrobial peptides that target the essential process of peptidoglycan synthesis. These antimicrobial peptides not only regulate the dynamics of microbial communities but are also of clinical importance as exemplified by peptides such as bacitracin, vancomycin, and daptomycin. Many gram-positive species have evolved specialized antimicrobial peptide sensing and resistance machinery known as Bce modules. These modules are membrane protein complexes formed by an unusual Bce-type ABC transporter interacting with a two-component system sensor histidine kinase. In this work, we provide the first structural insight into how the membrane protein components of these modules assemble into a functional complex. A cryo-EM structure of an entire Bce module revealed an unexpected mechanism of complex assembly, and extensive structural flexibility in the sensor histidine kinase. Structures of the complex in the presence of a non-hydrolysable ATP analog reveal how nucleotide binding primes the complex for subsequent activation. Accompanying biochemical data demonstrate how the individual membrane protein components of the complex exert functional control over one another to create a tightly regulated enzymatic system. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_29701.map.gz | 7.1 MB | EMDB map data format | |
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Header (meta data) | emd-29701-v30.xml emd-29701.xml | 23 KB 23 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_29701_fsc.xml | 11.9 KB | Display | FSC data file |
Images | emd_29701.png | 107.1 KB | ||
Masks | emd_29701_msk_1.map | 178 MB | Mask map | |
Filedesc metadata | emd-29701.cif.gz | 6.9 KB | ||
Others | emd_29701_additional_1.map.gz emd_29701_half_map_1.map.gz emd_29701_half_map_2.map.gz | 167.9 MB 165.3 MB 165.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-29701 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-29701 | HTTPS FTP |
-Validation report
Summary document | emd_29701_validation.pdf.gz | 849 KB | Display | EMDB validaton report |
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Full document | emd_29701_full_validation.pdf.gz | 848.6 KB | Display | |
Data in XML | emd_29701_validation.xml.gz | 20.7 KB | Display | |
Data in CIF | emd_29701_validation.cif.gz | 26.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29701 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29701 | HTTPS FTP |
-Related structure data
Related structure data | 8g3lMC 8g3aC 8g3bC 8g3fC 8g4cC 8g4dC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_29701.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Final map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.872 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_29701_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: #1
File | emd_29701_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: Half map A
File | emd_29701_half_map_1.map | ||||||||||||
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Annotation | Half map A | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map B
File | emd_29701_half_map_2.map | ||||||||||||
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Annotation | Half map B | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : BceAB-S
Entire | Name: BceAB-S |
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Components |
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-Supramolecule #1: BceAB-S
Supramolecule | Name: BceAB-S / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 Details: A membrane protein complex formed by the BceAB transporter and BceS histidine kinase |
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Source (natural) | Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria) |
Molecular weight | Theoretical: 167 KDa |
-Macromolecule #1: Bacitracin export permease protein BceB
Macromolecule | Name: Bacitracin export permease protein BceB / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria) |
Molecular weight | Theoretical: 72.262109 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MNINQLILRN LKKNLRNYYL YVFALIFSVA LYFAFVTLQY DPAINEVKAS IKGAAAIKTA SILLVAVVAI FILYANTIFI KRRSKEIGL FQLIGMTKHK IFRILSAENV MLYFGSLAIG VAAGFSISKL VLMILFKIVD VKADAKLHFS EQALVQTVIV F CGIYLLIM ...String: MNINQLILRN LKKNLRNYYL YVFALIFSVA LYFAFVTLQY DPAINEVKAS IKGAAAIKTA SILLVAVVAI FILYANTIFI KRRSKEIGL FQLIGMTKHK IFRILSAENV MLYFGSLAIG VAAGFSISKL VLMILFKIVD VKADAKLHFS EQALVQTVIV F CGIYLLIM IMNYTFIKKQ SILSLFKVTS STEDKVKKIS FFQMLIGALG IVLILTGYYV SSELFGGKFK TINELFVAMS FI LGSVIIG TFLFYKGSVT FISNIIRKSK GGYLNISEVL SLSSIMFRMK SNALLLTIIT TVSALAIGLL SLAYISYYSS EKT AEQNVA ADFSFMNEKD AKLFENKLRE SNISFVKKAT PVLQANVDIA NIMDGTPKEM QGDPGNMQLA VVSDKDVKGV DVAA GEAVF SGYTDLLQKI MVFKDSGVIK VKSKHETQPL KYKGLREEFL VSYTFTSGGM PAVIVDDSLF KQLDKDKDPR IQLAQ STFI GVNVKHDDQM EKANELFQQV NKKNEHLSRL DTSAAQKSLF GMVMFIVGFL GLTFLITSGC ILYFKQMGES EDEKPS YTI LRKLGFTQGD LIKGIRIKQM YNFGIPLVVG LFHSYFAVQS GWFLFGSEVW APMIMVMVLY TALYSIFGFL SVLYYKK VI KSSL UniProtKB: Bacitracin export permease protein BceB |
-Macromolecule #2: Bacitracin export ATP-binding protein BceA
Macromolecule | Name: Bacitracin export ATP-binding protein BceA / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria) |
Molecular weight | Theoretical: 29.248377 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MSGHHHHHHV ILEANKIRKS YGNKLNKQEV LKGIDIHIEK GEFVSIMGAS GSGKTTLLNV LSSIDQVSHG TIHINGNDMT AMKEKQLAE FRKQHLGFIF QDYNLLDTLT VKENILLPLS ITKLSKKEAN RKFEEVAKEL GIYELRDKYP NEISGGQKQR T SAGRAFIH ...String: MSGHHHHHHV ILEANKIRKS YGNKLNKQEV LKGIDIHIEK GEFVSIMGAS GSGKTTLLNV LSSIDQVSHG TIHINGNDMT AMKEKQLAE FRKQHLGFIF QDYNLLDTLT VKENILLPLS ITKLSKKEAN RKFEEVAKEL GIYELRDKYP NEISGGQKQR T SAGRAFIH DPSIIFADEP TGALDSKSAS DLLNKLSQLN QKRNATIIMV THDPVAASYC GRVIFIKDGQ MYTQLNKGGQ DR QTFFQDI MKTQGVLGGV QHEH UniProtKB: Bacitracin export ATP-binding protein BceA |
-Macromolecule #3: Sensor protein BceS
Macromolecule | Name: Sensor protein BceS / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: histidine kinase |
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Source (natural) | Organism: Bacillus subtilis subsp. subtilis str. 168 (bacteria) |
Molecular weight | Theoretical: 38.811898 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MIKAFLIERR SWIAAFLFQQ ALMLFIAFVD PSISFGNVLY MVYLCILFFI IFLWFRYRKE TAFYKSLKTW ENNLDVTAIN EPETPFEAM VERSIAGQTE HLKQTAARHR LALENEKDEL MAWIHEVKTP LTAMHLIIDR MEEKALKSQL SYEWLRIHLL L DQQLHQKR ...String: MIKAFLIERR SWIAAFLFQQ ALMLFIAFVD PSISFGNVLY MVYLCILFFI IFLWFRYRKE TAFYKSLKTW ENNLDVTAIN EPETPFEAM VERSIAGQTE HLKQTAARHR LALENEKDEL MAWIHEVKTP LTAMHLIIDR MEEKALKSQL SYEWLRIHLL L DQQLHQKR ISFIENDLSV EFIQLQPLIF KEIKDLQSWC IQKGIGFDIQ LEAKEVLSDA KWLAFIIRQL LTNAVKYSEA SE IEIKSFQ KGEQTQLQVK DCGRGIDPKD VPRIFDKGFT STTDHHDQAS TGMGLYLAKK AAAPLLIHID VESEFGAGTV FTL TFPIRN QFEHVISV UniProtKB: Sensor protein BceS |
-Macromolecule #4: PALMITIC ACID
Macromolecule | Name: PALMITIC ACID / type: ligand / ID: 4 / Number of copies: 1 / Formula: PLM |
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Molecular weight | Theoretical: 256.424 Da |
Chemical component information | ChemComp-PLM: |
-Macromolecule #5: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyl...
Macromolecule | Name: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate type: ligand / ID: 5 / Number of copies: 2 / Formula: 6OU |
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Molecular weight | Theoretical: 717.996 Da |
Chemical component information | ChemComp-6OU: |
-Macromolecule #6: OLEIC ACID
Macromolecule | Name: OLEIC ACID / type: ligand / ID: 6 / Number of copies: 1 / Formula: OLA |
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Molecular weight | Theoretical: 282.461 Da |
Chemical component information | ChemComp-OLA: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 6.5 mg/mL | ||||||||||||
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Buffer | pH: 8 Component:
Details: 150mM NaCl, 25mM Tris-HCl, 0.005% LMNG | ||||||||||||
Grid | Model: Quantifoil R2/2 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 45 sec. | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.5 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.7000000000000001 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |