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Analysis of nucleotides 13-96 of the human parainfluenza virus type 3 antigenomic promoter reveals positive- and negative-acting replication elements.

ABSTRACT: During replication of human parainfluenza virus type 3 (HPIV3), the 96-nucleotide antigenomic promoter (AGP) of HPIV3 directs the synthesis of genomic RNA. Previous work showed that nucleotides 1-12 were critical in promoting replication of an HPIV3 minireplicon, but nucleotides 13-96 were not investigated. In this study, the role of nucleotides 13-96 in AGP function was analyzed by creating and assaying mutations in an HPIV3 minireplicon. A replication promoting element known as promoter element II (nt 79-96) was confirmed in the HPIV3 AGP. Additionally, nucleotides 13-39 were found to constitute an additional positive-acting cis-element. However, detailed analysis of the 13-39 element revealed a complicated control element with both stimulatory and repressing elements. Specifically, nucleotides 21-28 were shown to repress RNA replication, while flanking sequences had a stimulatory effect.

SUBMITTER: Gander JR

PROVIDER: S-EPMC3190129 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Analysis of nucleotides 13-96 of the human parainfluenza virus type 3 antigenomic promoter reveals positive- and negative-acting replication elements.

Gander Jill R JR Schwan LeeAnne M LM Hoffman Michael A MA

Virology 20110830 2

During replication of human parainfluenza virus type 3 (HPIV3), the 96-nucleotide antigenomic promoter (AGP) of HPIV3 directs the synthesis of genomic RNA. Previous work showed that nucleotides 1-12 were critical in promoting replication of an HPIV3 minireplicon, but nucleotides 13-96 were not investigated. In this study, the role of nucleotides 13-96 in AGP function was analyzed by creating and assaying mutations in an HPIV3 minireplicon. A replication promoting element known as promoter elemen ...[more]

PMID: 21880340

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Analysis of nucleotides 13-96 of the human parainfluenza virus type 3 antigenomic promoter reveals positive- and negative-acting replication elements.

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Analysis of nucleotides 13-96 of the human parainfluenza virus type 3 antigenomic promoter reveals positive- and negative-acting replication elements.

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