Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1991-2-27
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
71 ( Pt 12)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3061-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Purification and initial characterization of human placental trophoblast interferon induced by polyriboinosinic.polyribocytidylic acid.
pubmed:affiliation
Danish Cancer Society, Department of Virus and Cancer, Aarhus, Denmark.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't