1zn5: Difference between revisions
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==Solid State NMR Structure of the low-temperature form of the Pf1 Major Coat Protein in Magnetically Aligned Bacteriophage== | ==Solid State NMR Structure of the low-temperature form of the Pf1 Major Coat Protein in Magnetically Aligned Bacteriophage== | ||
<StructureSection load='1zn5' size='340' side='right' caption='[[1zn5]], [[NMR_Ensembles_of_Models | 27 NMR models]]' scene=''> | <StructureSection load='1zn5' size='340' side='right'caption='[[1zn5]], [[NMR_Ensembles_of_Models | 27 NMR models]]' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1zn5]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_phage_pf1 Pseudomonas phage pf1]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZN5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZN5 FirstGlance]. <br> | <table><tr><td colspan='2'>[[1zn5]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_phage_pf1 Pseudomonas phage pf1]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZN5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZN5 FirstGlance]. <br> | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | |||
[[Category: Pseudomonas phage pf1]] | [[Category: Pseudomonas phage pf1]] | ||
[[Category: Nevzorov, A A]] | [[Category: Nevzorov, A A]] | ||
Revision as of 13:02, 5 February 2020
Solid State NMR Structure of the low-temperature form of the Pf1 Major Coat Protein in Magnetically Aligned BacteriophageSolid State NMR Structure of the low-temperature form of the Pf1 Major Coat Protein in Magnetically Aligned Bacteriophage
Structural highlights
Function[CAPSD_BPPF1] Self assembles to form a helical capsid wrapping up the viral genomic DNA. The capsid displays a filamentous structure with a length of 760-1950 nm and a width of 6-8 nm. The virion assembly and budding take place at the host inner membrane (By similarity). Publication Abstract from PubMedThe filamentous bacteriophage Pf1 undergoes a reversible temperature-dependent transition that is also influenced by salt concentrations. This structural responsiveness may be a manifestation of the important biological property of flexibility, which is necessary for long, thin filamentous assemblies as a protection against shear forces. To investigate structural changes in the major coat protein, one- and two-dimensional solid-state NMR spectra of concentrated solutions of Pf1 bacteriophage were acquired, and the structure of the coat protein determined at 0 degrees C was compared with the structure previously determined at 30 degrees C. Despite dramatic differences in the NMR spectra, the overall change in the coat protein structure is small. Changes in the orientation of the C-terminal helical segment and the conformation of the first five residues at the N-terminus are apparent. These results are consistent with prior studies by X-ray fiber diffraction and other biophysical methods. Structural basis of the temperature transition of Pf1 bacteriophage.,Thiriot DS, Nevzorov AA, Opella SJ Protein Sci. 2005 Apr;14(4):1064-70. Epub 2005 Mar 1. PMID:15741342[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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