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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1991-2-27
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pubmed:abstractText |
Human placental trophoblast interferon (tro-IFN), induced in trophoblast cultures by a superinduction procedure, was purified to a homogeneous product with retention of biological activity. The problems associated with isolation from serum-containing medium were overcome by a combination of Blue Sepharose affinity chromatography and reversed-phase HPLC (RP-HPLC) on Separon SGX C-18. This two-step purification procedure yielded tro-IFN with a specific activity of 3.4 x 10(7) international units/mg of protein. The overall recovery of interferon activity was 66.7%. The purified tro-IFN was shown to be a glycoprotein with an Mr of 24K on native and SDS-PAGE. Its antiviral activity was stable at pH 2.0 at 37 degrees C but was sensitive to heat at 56 degrees C for 1 h and was neutralized by antibodies to human IFN-beta.
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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 |
Dec
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pubmed:issn |
0022-1317
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71 ( Pt 12)
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3061-6
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1703216-Cell Line,
pubmed-meshheading:1703216-Cells, Cultured,
pubmed-meshheading:1703216-Chromatography, Affinity,
pubmed-meshheading:1703216-Chromatography, Gel,
pubmed-meshheading:1703216-Chromatography, High Pressure Liquid,
pubmed-meshheading:1703216-Female,
pubmed-meshheading:1703216-Humans,
pubmed-meshheading:1703216-Interferons,
pubmed-meshheading:1703216-Molecular Weight,
pubmed-meshheading:1703216-Placenta,
pubmed-meshheading:1703216-Poly I-C,
pubmed-meshheading:1703216-Pregnancy,
pubmed-meshheading:1703216-Trophoblasts,
pubmed-meshheading:1703216-Vesicular stomatitis Indiana virus
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pubmed:year |
1990
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pubmed:articleTitle |
Purification and initial characterization of human placental trophoblast interferon induced by polyriboinosinic.polyribocytidylic acid.
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pubmed:affiliation |
Danish Cancer Society, Department of Virus and Cancer, Aarhus, Denmark.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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