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- EMDB-36127: In situ structures of the ultra-long contracted tail of Myovirida... -
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Open data
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Basic information
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Title | In situ structures of the ultra-long contracted tail of Myoviridae phage P1 | |||||||||
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![]() | Complex / Virus / Phage / VIRAL PROTEIN | |||||||||
Function / homology | Gp22![]() | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
![]() | Zhou JQ / Liu HR | |||||||||
Funding support | ![]()
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![]() | ![]() Title: In Situ Structures of the Ultra-Long Extended and Contracted Tail of Myoviridae Phage P1. Authors: Fan Yang / Liwen Wang / Junquan Zhou / Hao Xiao / Hongrong Liu / ![]() Abstract: The phage tail is a common component of contractile injection systems (CISs), essential for exerting contractile function and facilitating membrane penetration of the inner tail tube. The near- ...The phage tail is a common component of contractile injection systems (CISs), essential for exerting contractile function and facilitating membrane penetration of the inner tail tube. The near-atomic resolution structures of the tail have been extensively studied, but the dynamic conformational changes before and after contraction and the associated molecular mechanism are still unclear. Here, we present the extended and contracted intact tail-structures of phage P1 by cryo-EM. The ultra-long tail of P1, 2450 Å in length, consists of a neck, a tail terminator, 53 repeated tail sheath rings, 53 repeated tube rings, and a baseplate. The sheath of the contracted tail shrinks by approximately 55%, resulting in the separation of the inner rigid tail tube from the sheath. The extended and contracted tails were further resolved by local reconstruction at 3.3 Å and 3.9 Å resolutions, respectively, allowing us to build the atomic models of the tail terminator protein gp24, the tube protein BplB, and the sheath protein gp22 for the extended tail, and of the sheath protein gp22 for the contracted tail. Our atomic models reveal the complex interaction network in the ultra-long tail and the novel conformational changes of the tail sheath between extended and contracted states. Our structures provide insights into the contraction and stabilization mechanisms of the tail. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 161.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 13.1 KB 13.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 12.1 KB | Display | ![]() |
Images | ![]() | 132.6 KB | ||
Filedesc metadata | ![]() | 5 KB | ||
Others | ![]() ![]() | 138.7 MB 138.7 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 | ![]() | 20.1 KB | Display | |
Data in CIF | ![]() | 26.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8jajMC ![]() 8janC 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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Map
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Voxel size | X=Y=Z: 1.36 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_36127_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_36127_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Escherichia phage P1
Entire | Name: ![]() |
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Components |
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-Supramolecule #1: Escherichia phage P1
Supramolecule | Name: Escherichia phage P1 / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 2886926 / Sci species name: Escherichia phage P1 / Virus type: VIRION / Virus isolate: SPECIES / Virus enveloped: No / Virus empty: Yes |
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-Macromolecule #1: Gp22
Macromolecule | Name: Gp22 / type: protein_or_peptide / ID: 1 / Number of copies: 12 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 56.989246 KDa |
Sequence | String: MSQYSIQQSL GNASGVAVSP INADATLSTG VALNSSLWAG IGVFARGKPF TVLAVTESNY EDVLGEPLKP SSGSQFEPIR HVYEAIQQT SGYVVRAVPD DAKFPIIMFD ESGEPAYSAL PYGSEIELDS GEAFAIYVDD GDPCISPTRE LTIETATADS A GNERFLLK ...String: MSQYSIQQSL GNASGVAVSP INADATLSTG VALNSSLWAG IGVFARGKPF TVLAVTESNY EDVLGEPLKP SSGSQFEPIR HVYEAIQQT SGYVVRAVPD DAKFPIIMFD ESGEPAYSAL PYGSEIELDS GEAFAIYVDD GDPCISPTRE LTIETATADS A GNERFLLK LTQTTSLGVV TTLETHTVSL AEEAKDDMGR LCYLPTALEA RSKYLRAVVN EELISTAKVT NKKSLAFTGG TN GDQSKIS TAAYLRAVKV LNNAPYMYTA VLGLGCYDNA AITALGKICA DRLIDGFFDV KPTLTYAEAL PAVEDTGLLG TDY VSCSVY HYPFSCKDKW TQSRVVFGLS GVAYAAKARG VKKNSDVGGW HYSPAGEERA VIARASIQPL YPEDTPDEEA MVKG RLNKV SVGTSGQMII DDALTCCTQD NYLHFQHVPS LMNAISRFFV QLARQMKHSP DGITAAGLTK GMTKLLDRFV ASGAL VAPR DPDADGTEPY VLKVTQAEFD KWEVVWACCP TGVARRIQGV PLLIK UniProtKB: Gp22 |
-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 | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 30.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.6 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |