+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-16807 | |||||||||
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Title | Cryo-EM structure of PcrV/Fab(11-E5) | |||||||||
Map data | ||||||||||
Sample |
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Keywords | antibody T3SS Tip protein / ANTIMICROBIAL PROTEIN | |||||||||
Function / homology | Function and homology information type III protein secretion system complex / protein secretion by the type III secretion system / detection of maltose stimulus / maltose binding / maltose transport complex / maltose transport / maltodextrin transmembrane transport / carbohydrate transport / carbohydrate transmembrane transporter activity / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing ...type III protein secretion system complex / protein secretion by the type III secretion system / detection of maltose stimulus / maltose binding / maltose transport complex / maltose transport / maltodextrin transmembrane transport / carbohydrate transport / carbohydrate transmembrane transporter activity / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / ATP-binding cassette (ABC) transporter complex / cell chemotaxis / outer membrane-bounded periplasmic space / periplasmic space / DNA damage response / extracellular space / membrane Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Pseudomonas aeruginosa (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.6 Å | |||||||||
Authors | Yuan B / Simonis A / Marlovits TC | |||||||||
Funding support | Germany, 1 items
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Citation | Journal: Cell / Year: 2023 Title: Discovery of highly neutralizing human antibodies targeting Pseudomonas aeruginosa. Authors: Alexander Simonis / Christoph Kreer / Alexandra Albus / Katharina Rox / Biao Yuan / Dmitriy Holzmann / Joana A Wilms / Sylvia Zuber / Lisa Kottege / Sandra Winter / Meike Meyer / Kristin ...Authors: Alexander Simonis / Christoph Kreer / Alexandra Albus / Katharina Rox / Biao Yuan / Dmitriy Holzmann / Joana A Wilms / Sylvia Zuber / Lisa Kottege / Sandra Winter / Meike Meyer / Kristin Schmitt / Henning Gruell / Sebastian J Theobald / Anna-Maria Hellmann / Christina Meyer / Meryem Seda Ercanoglu / Nina Cramer / Antje Munder / Michael Hallek / Gerd Fätkenheuer / Manuel Koch / Harald Seifert / Ernst Rietschel / Thomas C Marlovits / Silke van Koningsbruggen-Rietschel / Florian Klein / Jan Rybniker / Abstract: Drug-resistant Pseudomonas aeruginosa (PA) poses an emerging threat to human health with urgent need for alternative therapeutic approaches. Here, we deciphered the B cell and antibody response to ...Drug-resistant Pseudomonas aeruginosa (PA) poses an emerging threat to human health with urgent need for alternative therapeutic approaches. Here, we deciphered the B cell and antibody response to the virulence-associated type III secretion system (T3SS) in a cohort of patients chronically infected with PA. Single-cell analytics revealed a diverse B cell receptor repertoire directed against the T3SS needle-tip protein PcrV, enabling the production of monoclonal antibodies (mAbs) abrogating T3SS-mediated cytotoxicity. Mechanistic studies involving cryoelectron microscopy identified a surface-exposed C-terminal PcrV epitope as the target of highly neutralizing mAbs with broad activity against drug-resistant PA isolates. These anti-PcrV mAbs were as effective as treatment with conventional antibiotics in vivo. Our study reveals that chronically infected patients represent a source of neutralizing antibodies, which can be exploited as therapeutics against PA. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_16807.map.gz | 2.8 MB | EMDB map data format | |
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Header (meta data) | emd-16807-v30.xml emd-16807.xml | 16.7 KB 16.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_16807_fsc.xml | 6.1 KB | Display | FSC data file |
Images | emd_16807.png | 56.5 KB | ||
Filedesc metadata | emd-16807.cif.gz | 6.2 KB | ||
Others | emd_16807_half_map_1.map.gz emd_16807_half_map_2.map.gz | 13.8 MB 13.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-16807 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-16807 | HTTPS FTP |
-Related structure data
Related structure data | 8crbMC 8cr9C M: atomic model generated by this map C: citing same article (ref.) |
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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_16807.map.gz / Format: CCP4 / Size: 18.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_16807_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_16807_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : PcrV-Fab(11-E5)
Entire | Name: PcrV-Fab(11-E5) |
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Components |
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-Supramolecule #1: PcrV-Fab(11-E5)
Supramolecule | Name: PcrV-Fab(11-E5) / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Heavy chain
Macromolecule | Name: Heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 24.036674 KDa |
Sequence | String: EVQLLESGGG LVQPGGSLRL SCAASGFSFS SYAMSWVRQA PGKGLEWVSA ISGSGGITYY GDSAKGRFTI SRDNSKNTLY LEMSSLRAD DTAVYYCAQE RYCDSGSCYE RDPVFEYWGQ GTRVTVSSAS TKGPSVFPLA PSSKSTSGGT AALGCLVKDY F PEPVTVSW ...String: EVQLLESGGG LVQPGGSLRL SCAASGFSFS SYAMSWVRQA PGKGLEWVSA ISGSGGITYY GDSAKGRFTI SRDNSKNTLY LEMSSLRAD DTAVYYCAQE RYCDSGSCYE RDPVFEYWGQ GTRVTVSSAS TKGPSVFPLA PSSKSTSGGT AALGCLVKDY F PEPVTVSW NSGALTSGVH TFPAVLQSSG LYSLSSVVTV PSSSLGTQTY ICNVNHKPSN TKVDKRVEP |
-Macromolecule #2: Light chain
Macromolecule | Name: Light chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 22.964422 KDa |
Sequence | String: QSVLTQPPSA SGAPGQRVTI SCSGSNSNIG TYFVYWYQQL PGTAPKVLIY RNDQRPSGVP DRISGSKSGT SASLAISGLR SEDEADYYC ASWDASLRGY VFGPGTKVTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP ...String: QSVLTQPPSA SGAPGQRVTI SCSGSNSNIG TYFVYWYQQL PGTAPKVLIY RNDQRPSGVP DRISGSKSGT SASLAISGLR SEDEADYYC ASWDASLRGY VFGPGTKVTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP SKQSNNKYAA SSYLSLTPEQ WKSHRSYSCQ VTHEGSTVEK TVAPTECS |
-Macromolecule #3: Maltose/maltodextrin-binding periplasmic protein,Type III secreti...
Macromolecule | Name: Maltose/maltodextrin-binding periplasmic protein,Type III secretion protein PcrV type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Pseudomonas aeruginosa (bacteria) |
Molecular weight | Theoretical: 75.538055 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MGSWSHPQFE KGGGSGGGSG GGSWSHPQFE KSGLVPRGSA SKTEEGKLVI WINGDKGYNG LAEVGKKFEK DTGIKVTVEH PDKLEEKFP QVAATGDGPD IIFWAHDRFG GYAQSGLLAE ITPAAAFQDK LYPFTWDAVR YNGKLIAYPI AVEALSLIYN K DLLPNPPK ...String: MGSWSHPQFE KGGGSGGGSG GGSWSHPQFE KSGLVPRGSA SKTEEGKLVI WINGDKGYNG LAEVGKKFEK DTGIKVTVEH PDKLEEKFP QVAATGDGPD IIFWAHDRFG GYAQSGLLAE ITPAAAFQDK LYPFTWDAVR YNGKLIAYPI AVEALSLIYN K DLLPNPPK TWEEIPALDK ELKAKGKSAL MFNLQEPYFT WPLIAADGGY AFKYAAGKYD IKDVGVDNAG AKAGLTFLVD LI KNKHMNA DTDYSIAEHA FNHGETAMTI NGPWAWSNID TSKVNYGVTV LPTFKGQPSK PFVGVLSAGI NAASPNKELA KEF LENYLL TDEGLEAVNK DKPLGAVALK SYEEELVKDP RVAATMENAQ KGEIMPNIPQ MSAFWYAVRT AVINAASGRQ TVDE VRNLN AARELFLDEL LAAPAAPASA EQEELLALLR SERIVLAHAG QPLSEAQVLK ALAWLLAANP SAPPGQGLEV LREVL QARR QPGAQWDLRE FLVSAYFSLH GRLDEDVIGV YKDVLQTQDG KRKALLDELK ALTAELKVYS VIQSQINAAL SAKQGI RID AGGIDLVDPT LYGYAVGDPR WKDSPEYALL SNLDTFSGKL SIKDFLSGSP KQSGELKGLK DEYPFEKDNN PVGNFAT TV SDRSRPLNDK VNEKTTLLND TSSRYNSAVE ALNRFIQKYD SVLRDILSAI UniProtKB: Maltose/maltodextrin-binding periplasmic protein, Type III secretion protein PcrV |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.33 mg/mL |
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Buffer | pH: 7.4 / Details: 1xPBS |
Vitrification | Cryogen name: ETHANE-PROPANE / Chamber humidity: 100 % |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.24 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |