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Residues in human respiratory syncytial virus P protein that are essential for its activity on RNA viral synthesis.

Abstract：

:Human respiratory syncytial virus (HRSV) P protein, 241 amino acid long, is a structural homotetrameric phosphoprotein. Viral transcription and replication processes are dependent on functional P protein interactions inside viral ribonucleoprotein complexes (RNPs). Binding capacity to RNPs proteins and transcription and replication complementation analyses, using inactive P protein variants, have identified residues essential for functional interactions with itself, L, N and M2-1 proteins. P protein may establish some of these interactions as monomer, but efficient viral transcription and replication requires P protein oligomerization through the central region of the molecule. A structurally stable three-dimensional model has been generated in silico for this region (residues 98-158). Our analysis has indicated that P protein residues L135, D139, E140 and L142 are involved in homotetramerization. Additionally, the residues D136, S156, T160 and E179 appear to be essential for P protein activity on viral RNA synthesis and very high turnover phosphorylation at S143, T160 and T210 could regulate it. Thus, compounds targeted to those of these residues, located in the modeled three-dimensional structure, could have specific anti-HRSV effect.

journal_name

Virus Res

journal_title

Virus research

authors

Asenjo A,Mendieta J,Gómez-Puertas P,Villanueva N

doi

10.1016/j.virusres.2007.11.013

subject

Has Abstract

pub_date

2008-03-01 00:00:00

pages

160-73

issue

1-2

eissn

0168-1702

issn

1872-7492

pii

S0168-1702(07)00451-0

journal_volume

132

pub_type

杂志文章

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