+Open data
-Basic information
Entry | Database: PDB / ID: 2fsy | |||||||||
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Title | Bacteriophage HK97 Pepsin-treated Expansion Intermediate IV | |||||||||
Components | major capsid protein | |||||||||
Keywords | VIRUS / Bacteriophage / HK97 / capsid protein / expansion intermediate / icosahedral VIRUS | |||||||||
Function / homology | Function and homology information viral procapsid maturation / T=7 icosahedral viral capsid / viral capsid / identical protein binding Similarity search - Function | |||||||||
Biological species | Enterobacteria phage HK97 (virus) | |||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.8 Å | |||||||||
Authors | Gan, L. / Speir, J.A. / Conway, J.F. / Lander, G. / Cheng, N. / Firek, B.A. / Hendrix, R.W. / Duda, R.L. / Liljas, L. / Johnson, J.E. | |||||||||
Citation | Journal: Structure / Year: 2006 Title: Capsid conformational sampling in HK97 maturation visualized by X-ray crystallography and cryo-EM. Authors: Lu Gan / Jeffrey A Speir / James F Conway / Gabriel Lander / Naiqian Cheng / Brian A Firek / Roger W Hendrix / Robert L Duda / Lars Liljas / John E Johnson / Abstract: Maturation of the bacteriophage HK97 capsid from a precursor (Prohead II) to the mature state (Head II) involves a 60 A radial expansion. The mature particle is formed by 420 copies of the major ...Maturation of the bacteriophage HK97 capsid from a precursor (Prohead II) to the mature state (Head II) involves a 60 A radial expansion. The mature particle is formed by 420 copies of the major capsid protein organized on a T = 7 laevo lattice with each subunit covalently crosslinked to two neighbors. Well-characterized pH 4 expansion intermediates make HK97 valuable for investigating quaternary structural dynamics. Here, we use X-ray crystallography and cryo-EM to demonstrate that in the final transition in maturation (requiring neutral pH), pentons in Expansion Intermediate IV (EI-IV) reversibly sample 14 A translations and 6 degrees rotations relative to a fixed hexon lattice. The limit of this trajectory corresponds to the Head II conformation that is secured at this extent only by the formation of the final class of covalent crosslinks. Mutants that cannot crosslink or EI-IV particles that have been rendered incapable of forming the final crosslink remain in the EI-IV state. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 2fsy.cif.gz | 337.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb2fsy.ent.gz | 282.3 KB | Display | PDB format |
PDBx/mmJSON format | 2fsy.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 2fsy_validation.pdf.gz | 461.8 KB | Display | wwPDB validaton report |
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Full document | 2fsy_full_validation.pdf.gz | 495.1 KB | Display | |
Data in XML | 2fsy_validation.xml.gz | 66.1 KB | Display | |
Data in CIF | 2fsy_validation.cif.gz | 86.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fs/2fsy ftp://data.pdbj.org/pub/pdb/validation_reports/fs/2fsy | HTTPS FTP |
-Related structure data
Related structure data | 2frpC 2fs3C 2ft1C 2fteC 1ohgS C: citing same article (ref.) S: Starting model for refinement |
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Similar structure data |
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-Assembly
Deposited unit |
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Unit cell |
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Symmetry | Point symmetry: (Hermann–Mauguin notation: 532 / Schoenflies symbol: I (icosahedral)) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Noncrystallographic symmetry (NCS) | NCS oper:
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