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Open data
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Basic information
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Title | Extended phiCD508 baseplate | |||||||||
![]() | C6 helical reconstruction extended phiCD508 baseplate sharpened map (B-factor = -100A) | |||||||||
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![]() | Bacteriophage / virus / needle / baseplate | |||||||||
Function / homology | ![]() Bacteriophage Mu-like, Gp48 / : / Bacteriophage Mu-like, Gp48 / : / Protein of unknown function DUF2634 / Contractile injection system sheath initiator / Phage tail tube protein / XkdM-like superfamily / Phage tail tube protein / Phage tail sheath protein, beta-sandwich domain ...Bacteriophage Mu-like, Gp48 / : / Bacteriophage Mu-like, Gp48 / : / Protein of unknown function DUF2634 / Contractile injection system sheath initiator / Phage tail tube protein / XkdM-like superfamily / Phage tail tube protein / Phage tail sheath protein, beta-sandwich domain / Phage tail sheath protein beta-sandwich domain / Baseplate protein J-like / Baseplate J-like protein / Tail sheath protein, subtilisin-like domain / Phage tail sheath protein subtilisin-like domain / Tail sheath protein, C-terminal domain / Phage tail sheath C-terminal domain / LysM domain superfamily / LysM domain / LysM domain profile. / LysM domain Similarity search - Domain/homology | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.43 Å | |||||||||
![]() | Wilson JS / Fagan RP / Bullough PA | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Molecular mechanism of bacteriophage contraction structure of an S-layer-penetrating bacteriophage. Authors: Jason S Wilson / Louis-Charles Fortier / Robert P Fagan / Per A Bullough / ![]() ![]() Abstract: The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S- ...The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S-layers. Here, we reveal the extended and contracted atomic structures of an intact contractile-tailed phage (φCD508) that binds to and penetrates the protective S-layer of the Gram-positive human pathogen The tail is unusually long (225 nm), and it is also notable that the tail contracts less than those studied in related contractile injection systems such as the model phage T4 (∼20% compared with ∼50%). Surprisingly, we find no evidence of auxiliary enzymatic domains that other phages exploit in cell wall penetration, suggesting that sufficient energy is released upon tail contraction to penetrate the S-layer and the thick cell wall without enzymatic activity. Instead, the unusually long tail length, which becomes more flexible upon contraction, likely contributes toward the required free energy release for envelope penetration. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 245.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 23.7 KB 23.7 KB | Display Display | ![]() |
Images | ![]() | 48.7 KB | ||
Filedesc metadata | ![]() | 6.7 KB | ||
Others | ![]() ![]() ![]() | 237.9 MB 442.6 MB 442.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 18.3 KB | Display | |
Data in CIF | ![]() | 21.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9gb2MC ![]() 9g8sC ![]() 9gayC ![]() 9gazC ![]() 9gb0C ![]() 9gb1C ![]() 9gb3C ![]() 9gb4C ![]() 9gb5C ![]() 9gb6C ![]() 9gb7C ![]() 9gb8C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | C6 helical reconstruction extended phiCD508 baseplate sharpened map (B-factor = -100A) | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: C6 helical reconstruction extended phiCD508 baseplate unsharpened map
File | emd_51195_additional_1.map | ||||||||||||
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Annotation | C6 helical reconstruction extended phiCD508 baseplate unsharpened map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: C6 helical reconstruction extended phiCD508 baseplate half map A
File | emd_51195_half_map_1.map | ||||||||||||
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Annotation | C6 helical reconstruction extended phiCD508 baseplate half map A | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: C6 helical reconstruction extended phiCD508 baseplate half map B
File | emd_51195_half_map_2.map | ||||||||||||
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Annotation | C6 helical reconstruction extended phiCD508 baseplate half map B | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Extended phiCD508 baseplate
Entire | Name: Extended phiCD508 baseplate |
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Components |
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-Supramolecule #1: Extended phiCD508 baseplate
Supramolecule | Name: Extended phiCD508 baseplate / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: gp65 - Triplex 1a protein
Macromolecule | Name: gp65 - Triplex 1a protein / type: protein_or_peptide / ID: 1 / Number of copies: 12 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 41.502496 KDa |
Sequence | String: MERELPIPVF LTEDEDSVHE RMLSNFQDVS TLEGDFIYDA TRPTAEQIAE LKQLGLQNNL KIAFPQTSYG TYLEWLGECK GVFKNQPTK ATGVITFTGV QGTIITKGTI VTTIATDEKQ SIEFELLETK TIGENETVDI KAESRIVGTI GNVSKGSISV L LGSISGVK ...String: MERELPIPVF LTEDEDSVHE RMLSNFQDVS TLEGDFIYDA TRPTAEQIAE LKQLGLQNNL KIAFPQTSYG TYLEWLGECK GVFKNQPTK ATGVITFTGV QGTIITKGTI VTTIATDEKQ SIEFELLETK TIGENETVDI KAESRIVGTI GNVSKGSISV L LGSISGVK SITNKEDFRG GTDIEDEEHF RERVLVAEQE DKLSGASSDY IRWAKEVDGV GYAYVVSEWA GAGTVKVLIL DK NRKAATQ ELIDKVQEYI YPLNISEGEN RDGKAPIGAL VTVVTPDTLL INVKASFIFS NGFSEETVLN NLKTKIDKYL DKI DLGGTV SYNAIQAIVG SMMLTDEGIE DFSNLTINDV KENIKLQDQV VGIGEIVNEV VG UniProtKB: Baseplate J family protein |
-Macromolecule #2: gp66 - Triplex 2 protein
Macromolecule | Name: gp66 - Triplex 2 protein / type: protein_or_peptide / ID: 2 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.912678 KDa |
Sequence | String: MIASKKGKEM LLTLSPIYEQ SIIMQSLYEA IGSEFDNLEL LDEEIELQLF PQSATWGLGF WENRVGLITN LDEDMETRRR KVIAKLQSK YIMTPKRMSM ILQSYTGANI KINENISPYT FGVELTSTQG FPKDLEDLYK RVNVIKPSHL AVSYKLVSLL K SKTYFAQT ...String: MIASKKGKEM LLTLSPIYEQ SIIMQSLYEA IGSEFDNLEL LDEEIELQLF PQSATWGLGF WENRVGLITN LDEDMETRRR KVIAKLQSK YIMTPKRMSM ILQSYTGANI KINENISPYT FGVELTSTQG FPKDLEDLYK RVNVIKPSHL AVSYKLVSLL K SKTYFAQT AIMSEEITIY PYTSKEVKAS VKAKFALAHN MSSETLTVYP R UniProtKB: XkdT-related protein |
-Macromolecule #3: gp61 - Tail tube initiator
Macromolecule | Name: gp61 - Tail tube initiator / type: protein_or_peptide / ID: 3 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 25.89983 KDa |
Sequence | String: MVIDIYLKNE KEKIDFHFPV NPQDSLSIKK EKRFETVDIV NLGEFDIKKE GEKIREISFK TFLPNLYDAS YCRYSELKNP IEVVAMLEK WVDQAEPLRL IITGFGYNGL VTISSFSNTQ TAGREEDRDI EITFRTYREL KIETLKKDTK SNTKTDLKDN R PNTQTKSK ...String: MVIDIYLKNE KEKIDFHFPV NPQDSLSIKK EKRFETVDIV NLGEFDIKKE GEKIREISFK TFLPNLYDAS YCRYSELKNP IEVVAMLEK WVDQAEPLRL IITGFGYNGL VTISSFSNTQ TAGREEDRDI EITFRTYREL KIETLKKDTK SNTKTDLKDN R PNTQTKSK IYTVKASDTL YKIAKNLLGK GSRWPEIYNI PENKKVIGKN PNIIKKGQKL VIPSK UniProtKB: LysM domain/BON superfamily protein |
-Macromolecule #4: gp56 - Tail tube protein
Macromolecule | Name: gp56 - Tail tube protein / type: protein_or_peptide / ID: 4 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 15.572538 KDa |
Sequence | String: MYNDDYIEEA SFLNGSDVVI LIDGVEELYM EEIKADFEQD EQSIKLLGCQ NEISRVGTTK GSFSLNGYKT DSKFAKLGFR SFEIIYNLS NSETLGYESI RLKNCRLKKL PLINSKAGEI VKIEVEGSFR GYDLLNEL UniProtKB: Protein of uncharacterized function (DUF2001) |
-Macromolecule #5: gp55 - Tail sheath protein
Macromolecule | Name: gp55 - Tail sheath protein / type: protein_or_peptide / ID: 5 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 53.016762 KDa |
Sequence | String: MATGTWNEKE RKEIPGFYNR FKTQAEKSTN TGLKGRLAMP IRANWGDVGK VVTIKNDLRQ LKNLFGDDMN YSAFKLGKLA LLGNVKELL LYRLVDGNQK KGTLTLKDTT ENSAKDVIKL ETKYPTARNF NVTIKSNLVD SDKKDFIFFE NTKQLFSSSI K GTIDEIVL ...String: MATGTWNEKE RKEIPGFYNR FKTQAEKSTN TGLKGRLAMP IRANWGDVGK VVTIKNDLRQ LKNLFGDDMN YSAFKLGKLA LLGNVKELL LYRLVDGNQK KGTLTLKDTT ENSAKDVIKL ETKYPTARNF NVTIKSNLVD SDKKDFIFFE NTKQLFSSSI K GTIDEIVL EINSNLDNEY VIATKVADSD TILANVVNQA LEGGNDGCTS ITNESYLKAL EEFERYSFDS FVLDGVADEA LQ ETTKAWV AKNKELGKDI LLFLGGKTED NIKQINDKSK SFNDENIVNV GSSAYYENIK YTPSEVAVYI AALSVSKGIT GSI CNAKTI FEEVEPRLSQ SEVKECLKSG TLVLDFDDGD VIIVDDVNTF KKYVDDKNEA MGYISNIMFI NTINKDTSLK RKEF VGKIF NDATGQTTVI CALKKYFEEL MSQGIISEFN VDIDTELQAT AKADEFYWKW DAVKVDVMKK IYGTGYLG UniProtKB: Phage tail sheath protein |
-Macromolecule #6: gp64 - Sheath initiator
Macromolecule | Name: gp64 - Sheath initiator / type: protein_or_peptide / ID: 6 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 17.676939 KDa |
Sequence | String: MPNLFPQSET FETVELKNND ENELDLKGSF LFDFEKGEFV KNADGTLKKC DKVQAYKQWC QKAILTPRYK KAAYTNIYGS EIKDLIASN LSQSAKELEI TRLIKETILV HPYTKEVGEF SFNWLENSRL VEYEFDVLTI DDENIVIDGN IKR UniProtKB: XkdS-related protein |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 42.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: INSILICO MODEL |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.43 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 19276 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |