Linked Life Data

9191859

Source:http://linkedlifedata.com/resource/pubmed/id/9191859

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-7-7
pubmed:abstractText
Trichomonas vaginalis harbors a double-stranded (ds)-RNA virus, and the presence of virus is related to upregulated expression and phenotypic variation of a prominent immunogen (Khoshnan A, Alderete JF (1994) J Virol 68: 4035-4038). To further test the influence of virus on T. vaginalis, virus-infected (V+) isolates were compared to virus-free (V-), agar-cloned progeny trichomonads derived from the parental isolates for accumulation of total proteins and cysteine proteinases. Comparative high resolution two dimensional (2D)-SDS-PAGE was performed of trichomonads grown in a chemostat under identical conditions. At least 47 proteins were identified as specifically expressed by representative V+ isolate 347, and approximately 41 spots were specific to the corresponding V- progeny, showing an association between virus and the presence and absence of parasite proteins. Qualitatively and quantitatively dissimilar cysteine proteinase patterns were detected from numerous V+ isolates and the V- progeny. A 2D analysis for isolate 347 showed the appearance of unique proteinase activities for parental parasites and presence of at least one proteinase in the V- progeny. Finally, the V+ T. vaginalis isolate 347, but not the V- isolate 347 progeny nor other V+ isolates, underwent fluctuations in density during chemostat growth allowing for purification of virus particles from the V+ isolate 347 supernatants during decreased parasite density.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0304-8608
pubmed:author
pubmed:issnType
Print
pubmed:volume
142
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
939-52
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Involvement of dsRNA virus in the protein composition and growth kinetics of host Trichomonas vaginalis.
pubmed:affiliation
Department of Microbiology, University of Texas Health Science Center, San Antonio, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.