Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-11-16
pubmed:abstractText
Human T-lymphocytic cell line H9 infected with the HTLV-IIIB isolate of human immunodeficiency virus type 1 (HIV-1) synthesizes two forms of the Nef protein (p25 and p27) that differ both in molecular weight and charge. Different subpopulations of viruses were isolated from the HTLV-IIIB stock which induce expression of only p25 or p27. Cells infected with HIV-1 derived from the HXB3 clone of the HTLV-IIIB isolate made only the p25 species, whereas the 8E5/LAV cell line which harbors a single defective LAV provirus produces only the p27 species. These findings are consistent with the notion that the HTLV-IIIB isolate consists of at least two distinct variants with different nef genes, one specifying p25 and the other encoding p27. After a considerable number of passages in culture, H9 cells chronically infected with the HTLV-IIIB isolate produced high levels of p25 and lower levels of p27. Passages in culture appear to select for a subpopulation of virus variants that specify high levels of p25 Nef expression.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:volume
179
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
504-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Heterogeneity of Nef proteins in cells infected with human immunodeficiency virus type 1.
pubmed:affiliation
Nucleic Acid and Protein Synthesis Laboratory, Program Resources, Inc., NCI-Frederick Cancer Research and Development Center, Maryland 21702.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.