3kk5 | pdb_00003kk5

Crystal structure of PBCV-1 VP54 fitted into a cryo-EM reconstruction of the virophage Sputnik

spinqualitylabelsall models 3kk5, resolution 10.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3kk5 is a 13 chain structure with sequence from Acanthamoeba polyphaga. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 1m3y Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The virophage Sputnik is a satellite virus of the giant mimivirus and is the only satellite virus reported to date whose propagation adversely affects its host virus' production. Genome sequence analysis showed that Sputnik has genes related to viruses infecting all three domains of life. Here, we report structural studies of Sputnik, which show that it is about 740 A in diameter, has a T=27 icosahedral capsid, and has a lipid membrane inside the protein shell. Structural analyses suggest that the major capsid protein of Sputnik is likely to have a double jelly-roll fold, although sequence alignments do not show any detectable similarity with other viral double jelly-roll capsid proteins. Hence, the origin of Sputnik's capsid might have been derived from other viruses prior to its association with mimivirus. Structural studies of the Sputnik virophage.,Sun S, La Scola B, Bowman VD, Ryan CM, Whitelegge JP, Raoult D, Rossmann MG J Virol. 2010 Jan;84(2):894-7. Epub 2009 Nov 4. PMID:19889775 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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