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SIFV virions assemble inside the cell. Binding of the major capsid protein dimers to the linear dsDNA genome lead to the assembly of nucleocapsids, which are subsequently enveloped intracellularly through an unknown mechanism. SIFV and probably other lipothrixviruses are lytic viruses. Virion release
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SIFV has a linear double-stranded DNA genome of 40,852 bp, which is the largest among characterized lipothrixviruses. The virions are enveloped filaments, nearly 2 micrometers in length. The nucleocapsid is formed from two paralogous major capsid proteins, which tightly wrap around the dsDNA genome;
247:), the SIFV VAPs have a hexagonal base (i.e., constructed from six triangular facets). The VAPs can be as large as 220 nm at the base and are constructed from a single SIFV-encoded protein of 89 aa. Expression of this protein in
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takes place through pyramidal portals, referred to as virus-associated pyramids (VAPs). Unlike in the case of some other archaeal viruses (e.g.,
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313:"Structures of filamentous viruses infecting hyperthermophilic archaea explain DNA stabilization in extreme environments"
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Baquero, DP; Gazi, AD; Sachse, M; Liu, J; Schmitt, C; Moya-Nilges, M; Schouten, S; Prangishvili, D; Krupovic, M (2021).
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Wang, F; Baquero, DP; Beltran, LC; Su, Z; Osinski, T; Zheng, W; Prangishvili, D; Krupovic, M; Egelman, EH (2020).
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377:"A filamentous archaeal virus is enveloped inside the cell and released through pyramidal portals"
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272:"A novel lipothrixvirus, SIFV, of the extremely thermophilic crenarchaeon Sulfolobus"
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notably, dehydration of the genomic DNA by the major capsid proteins transforms the
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Proceedings of the
National Academy of Sciences of the United States of America
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Proceedings of the
National Academy of Sciences of the United States of America
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Arnold, Hans Peter; Zillig, Wolfram; Ziese, Ulrike; et al. (2000).
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212:. The virus infects hypethermophilic and acidophilic archaeon
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leads to VAP formation in the inner bacterial membrane.
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174:Sulfolobus islandicus filamentous virus
475:Sulfolobus islandicus filamentous virus
445:Sulfolobus islandicus filamentous virus
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176:virus name & previous species name
18:Sulfolobus islandicus filamentous virus
7:
546:
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564:. You can help Knowledge (XXG) by
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193:Betalipothrixvirus hveragerdiense
157:Betalipothrixvirus hveragerdiense
34:Betalipothrixvirus hveragerdiense
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200:, classified in the family
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182:virus name abbreviation
402:10.1073/pnas.2105540118
338:10.1073/pnas.2011125117
560:-related article is a
289:10.1006/viro.1999.0105
215:Sulfolobus islandicus
41:Virus classification
393:2021PNAS..11805540B
387:(32): e2105540118.
329:2020PNAS..11719643W
323:(33): 19643–19652.
144:Betalipothrixvirus
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437:Taxon identifiers
206:within the order
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16:(Redirected from
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54:(unranked):
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621:Virus stubs
469:Wikispecies
241:rudiviruses
84:Zilligvirae
605:Categories
257:References
234:Life cycle
228:A-form DNA
224:B-form DNA
151:Species:
79:Kingdom:
72:Adnaviria
515:11460900
460:Q3503464
454:Wikidata
421:34341107
357:32759221
298:10662621
276:Virology
166:Synonyms
127:Family:
91:Phylum:
412:8364153
389:Bibcode
348:7443925
325:Bibcode
250:E. coli
139:Genus:
115:Order:
103:Class:
528:176106
502:540800
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558:virus
556:This
510:IRMNG
489:53FQD
226:into
180:SIFV
65:Realm
58:Virus
562:stub
523:NCBI
417:PMID
353:PMID
294:PMID
243:and
497:EoL
484:CoL
407:PMC
397:doi
385:118
343:PMC
333:doi
321:117
284:doi
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