Abstract:
:The efficiency and specificity of gene transfer with human adenovirus (hAd)-derived gene transfer vectors would be improved if the native viral tropism could be modified. Here, we demonstrate that the minor capsid protein IX (pIX), which is present in 240 copies in the Ad capsid, can be exploited as an anchor for heterologous polypeptides. Protein IX-deleted hAd5 vectors were propagated in hAd5 helper cells expressing pIX variants, with heterologous carboxyl-terminal extensions of up to 113 amino acids in length. The extensions evaluated consist of alpha-helical spacers up to 75 A in length and to which peptide ligands were fused. The pIX variants were efficiently incorporated into the capsids of Ad particles. On intact particles, the MYC-tagged-pIX molecules were readily accessible to anti-MYC antibodies, as demonstrated by electron microscopic analyses of immunogold-labeled virus particles. The labeling efficiency improved with increasing spacer length, suggesting that the spacers lift and expose the ligand at the capsid surface. Furthermore, we found that the addition of an integrin-binding RGD motif to the pIX markedly stimulated the transduction of coxsackievirus group B and hAd receptor-deficient endothelioma cells, demonstrating the utility of pIX modification in gene transfer. Our data demonstrate that the minor capsid protein IX can be used as an anchor for the addition of polypeptide ligands to Ad particles.
journal_name
J Viroljournal_title
Journal of virologyauthors
Vellinga J,Rabelink MJ,Cramer SJ,van den Wollenberg DJ,Van der Meulen H,Leppard KN,Fallaux FJ,Hoeben RCdoi
10.1128/jvi.78.7.3470-3479.2004subject
Has Abstractpub_date
2004-04-01 00:00:00pages
3470-9issue
7eissn
0022-538Xissn
1098-5514journal_volume
78pub_type
杂志文章abstract::The RNAs of replication-defective murine and primate type C transforming viruses were analyzed for the presence of nucleotide sequences homologous to the genomes of their respective helper type C viruses by using DNAs complementary (cDNA) to either the 5'-terminal (cDNA5') or total (cDNAtotal) nucleotide sequences of ...
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doi:10.1128/JVI.44.3.804-812.1982
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pub_type: 杂志文章
doi:10.1128/JVI.68.10.6763-6766.1994
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pub_type: 杂志文章
doi:10.1128/JVI.12.4.931-936.1973
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pub_type: 杂志文章
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doi:10.1128/jvi.74.17.8102-8110.2000
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00689-12
更新日期:2012-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.6.1.28-32.1970
更新日期:1970-07-01 00:00:00
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pub_type: 杂志文章
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abstract::The S protein of bovine coronavirus (BCV) has been isolated from the viral membrane and purified by gradient centrifugation. Purified S protein was identified as a viral hemagglutinin. Inactivation of the cellular receptors by sialate 9-O-acetylesterase and generation of receptors by sialylation of erythrocytes with N...
journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2003-08-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/JVI.69.3.1377-1388.1995
更新日期:1995-03-01 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
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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
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更新日期:2004-04-01 00:00:00
abstract::The latency-related (LR) gene of bovine herpesvirus 1 (BHV-1) is abundantly expressed during latency. A mutant BHV-1 strain that contains three stop codons at the 5' terminus of the LR gene (LR mutant) does not reactivate from latency. This study demonstrates that the LR mutant does not express open reading frame 2 or...
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pub_type: 杂志文章
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abstract::Parvoviruses infect humans and a broad range of animals, from mammals to crustaceans, and generally are associated with a variety of acute and chronic diseases. However, many others cause persistent infections and are not known to be associated with any disease. Viral persistence is likely related to the ability to in...
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pub_type: 杂志文章
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