Abstract:
:Luteoviruses avoid degradation in the hemolymph of their aphid vector by interacting with a GroEL homolog from the aphid's primary endosymbiotic bacterium (Buchnera sp.). Mutational analysis of GroEL from the primary endosymbiont of Myzus persicae (MpB GroEL) revealed that the amino acids mediating binding of Potato leafroll virus (PLRV; Luteoviridae) are located within residues 9 to 19 and 427 to 457 of the N-terminal and C-terminal regions, respectively, of the discontinuous equatorial domain. Virus overlay assays with a series of overlapping synthetic decameric peptides and their derivatives demonstrated that R13, K15, L17, and R18 of the N-terminal region and R441 and R445 of the C-terminal region of the equatorial domain of GroEL are critical for PLRV binding. Replacement of R441 and R445 by alanine in full-length MpB GroEL and in MpB GroEL deletion mutants reduced but did not abolish PLRV binding. Alanine substitution of either R13 or K15 eliminated the PLRV-binding capacity of the other and those of L17 and R18. In the predicted tertiary structure of GroEL, the determinants mediating virus binding are juxtaposed in the equatorial plain.
journal_name
J Viroljournal_title
Journal of virologyauthors
Hogenhout SA,van der Wilk F,Verbeek M,Goldbach RW,van den Heuvel JFdoi
10.1128/jvi.74.10.4541-4548.2000subject
Has Abstractpub_date
2000-05-01 00:00:00pages
4541-8issue
10eissn
0022-538Xissn
1098-5514journal_volume
74pub_type
杂志文章abstract::Human immunodeficiency virus clade C (HIV-C) accounts for >56% of all HIV infections worldwide. To investigate vaccine safety and efficacy in nonhuman primates, a pathogenic, R5-tropic, neutralization-sensitive simian-human immunodeficiency virus (SHIV) carrying HIV-C env would be desirable. We have constructed SHIV-2...
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journal_title:Journal of virology
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doi:10.1128/JVI.69.12.8151-8154.1995
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pub_type: 杂志文章
doi:10.1128/JVI.69.10.6487-6497.1995
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doi:10.1128/JVI.19.2.709-716.1976
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.32.1.30-39.1979
更新日期:1979-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.12.8813-8820.1996
更新日期:1996-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.52.1.129-135.1984
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journal_title:Journal of virology
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journal_title:Journal of virology
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journal_title:Journal of virology
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.29.1.143-152.1979
更新日期:1979-01-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2007-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1997-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2008-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2005-09-01 00:00:00