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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1986-5-7
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pubmed:abstractText |
RNA-binding proteins of coronavirus MHV-A59 were identified using an RNA overlay-protein blot assay (ROPBA). The major viral RNA-binding protein in virions and infected cells was the phosphorylated nucleocapsid protein N (50K). A new 140K virus structural protein was identified as a minor RNA-binding protein both in virions and in infected cells. The 140K protein was antigenically related to N, and upon reduction, yielded only 50K N. Thus, the 140K protein is probably a trimer of N subunits linked by intermolecular disulfide bonds. Several cellular RNA-binding proteins were also detected. RNA-binding of N was not nucleotide sequence specific. Single-stranded RNA of MHV, VSV, or cellular origin, a DNA probe of the MHV leader sequence, and double-stranded bovine rotavirus RNA could all bind to N. Binding of MHV RNA was optimal between pH 7 and 8, and the RNA could be eluted in 0.1 M NaCl. The ROPBA is a useful method for the initial identification of RNA-binding proteins, such as N and the 140K protein of murine coronavirus.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0042-6822
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
150
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
402-10
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3083580-Animals,
pubmed-meshheading:3083580-Capsid,
pubmed-meshheading:3083580-Carrier Proteins,
pubmed-meshheading:3083580-Coronaviridae,
pubmed-meshheading:3083580-Electrophoresis, Agar Gel,
pubmed-meshheading:3083580-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3083580-Methods,
pubmed-meshheading:3083580-Mice,
pubmed-meshheading:3083580-Mice, Inbred BALB C,
pubmed-meshheading:3083580-Molecular Weight,
pubmed-meshheading:3083580-RNA-Binding Proteins,
pubmed-meshheading:3083580-Viral Core Proteins,
pubmed-meshheading:3083580-Virion
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pubmed:year |
1986
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pubmed:articleTitle |
RNA-binding proteins of coronavirus MHV: detection of monomeric and multimeric N protein with an RNA overlay-protein blot assay.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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