| pubmed-article:19570861 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C0019169 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C0521026 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C0542341 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C1521761 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C1550548 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C1555714 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C0205224 | lld:lifeskim |
| pubmed-article:19570861 | lifeskim:mentions | umls-concept:C1705654 | lld:lifeskim |
| pubmed-article:19570861 | pubmed:issue | 18 | lld:pubmed |
| pubmed-article:19570861 | pubmed:dateCreated | 2009-8-20 | lld:pubmed |
| pubmed-article:19570861 | pubmed:abstractText | The hepatitis B virus (HBV) particles bear a receptor-binding site located in the pre-S1 domain of the large HBV envelope protein. Using the hepatitis delta virus (HDV) as a surrogate of HBV, a second infectivity determinant was recently identified in the envelope proteins antigenic loop (AGL), and its activity was shown to depend upon cysteine residues that are essential for the structure of the HBV immunodominant "a" determinant. Here, an alanine-scanning mutagenesis approach was used to precisely map the AGL infectivity determinant to a set of conserved residues, which are predicted to cluster together with cysteines in the AGL disulfide bridges network. Several substitutions suppressed both infectivity and the "a" determinant, whereas others were infectivity deficient with only a partial impact on antigenicity. Interestingly, G145R, a substitution often arising under immune pressure selection and detrimental to the "a" determinant, had no effect on infectivity. Altogether, these findings indicate that the AGL infectivity determinant is closely related to, yet separable from, the "a" determinant. Finally, a selection of HDV entry-deficient mutations were introduced at the surface of HBV virions and shown to also abrogate infection in the HBV model. Therefore, a function can at last be assigned to the orphan "a" determinant, the first-discovered marker of HBV infection. The characterization of the AGL functions at viral entry may lead to novel approaches in the development of antivirals against HBV. | lld:pubmed |
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| pubmed-article:19570861 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19570861 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19570861 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19570861 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19570861 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19570861 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:19570861 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19570861 | pubmed:month | Sep | lld:pubmed |
| pubmed-article:19570861 | pubmed:issn | 1098-5514 | lld:pubmed |
| pubmed-article:19570861 | pubmed:author | pubmed-author:SureauCamille... | lld:pubmed |
| pubmed-article:19570861 | pubmed:author | pubmed-author:SalisseJessic... | lld:pubmed |
| pubmed-article:19570861 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19570861 | pubmed:volume | 83 | lld:pubmed |
| pubmed-article:19570861 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19570861 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19570861 | pubmed:pagination | 9321-8 | lld:pubmed |
| pubmed-article:19570861 | pubmed:dateRevised | 2010-9-27 | lld:pubmed |
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| pubmed-article:19570861 | pubmed:meshHeading | pubmed-meshheading:19570861... | lld:pubmed |
| pubmed-article:19570861 | pubmed:meshHeading | pubmed-meshheading:19570861... | lld:pubmed |
| pubmed-article:19570861 | pubmed:meshHeading | pubmed-meshheading:19570861... | lld:pubmed |
| pubmed-article:19570861 | pubmed:meshHeading | pubmed-meshheading:19570861... | lld:pubmed |
| pubmed-article:19570861 | pubmed:meshHeading | pubmed-meshheading:19570861... | lld:pubmed |
| pubmed-article:19570861 | pubmed:year | 2009 | lld:pubmed |
| pubmed-article:19570861 | pubmed:articleTitle | A function essential to viral entry underlies the hepatitis B virus "a" determinant. | lld:pubmed |
| pubmed-article:19570861 | pubmed:affiliation | Institut National de la Transfusion Sanguine, Paris, France. | lld:pubmed |
| pubmed-article:19570861 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:19570861 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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