Abstract:
:Primary RNA transcripts from the human immunodeficiency virus type 1 (HIV-1) are processed into mature mRNA by a complex series of splicing events. Viral structural proteins and reverse transcriptase are translated from unspliced or singly spliced transcripts. Proteins which control virus replication, including tat, rev, and nef, are translated from transcripts which are the product of multiple splicing. We have analyzed the composition and relative abundance of the latter transcripts in long-term infected cell lines and in acutely infected peripheral blood cells by amplification with the polymerase chain reaction (PCR) followed by Southern blot, molecular cloning, and DNA sequence analyses. In H9 cells chronically infected with the HIV-1 strain HTLV-IIIB, the predominant of the three kinds of transcripts is those coding for nef. Transcripts with coding potential for rev constituted an intermediate fraction of those analyzed, while those for tat accounted for only a small minority. A similar pattern was observed with Southern blots of PCR-amplified transcripts from peripheral blood lymphocytes acutely infected with HTLV-IIIB. The same general pattern was also observed with PCR-amplified transcripts from peripheral blood monocyte-macrophages infected with an HIV-1 strain (BA-L) able to grow to high titers in macrophages. In these cells, however, the apparent major form of nef transcript contained only the first and third exons of the multiply spliced transcripts and appeared to be generated by either a single or a triple splicing mechanism. As with lymphocytes, tat-specific mRNAs were by far the least abundant. It thus appears that different cell types infected with different strains of HIV-1 maintain a similar balance of expression in which transcripts for nef vastly predominate over those for tat and that those for rev are intermediate in abundance.
journal_name
J Viroljournal_title
Journal of virologyauthors
Robert-Guroff M,Popovic M,Gartner S,Markham P,Gallo RC,Reitz MSdoi
10.1128/JVI.64.7.3391-3398.1990subject
Has Abstractpub_date
1990-07-01 00:00:00pages
3391-8issue
7eissn
0022-538Xissn
1098-5514journal_volume
64pub_type
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doi:10.1128/JVI.64.5.2041-2046.1990
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abstract::One unique feature of the shrimp white spot syndrome virus (WSSV) genome is the presence of a giant open reading frame (ORF) of 18,234 nucleotides that encodes a long polypeptide of 6,077 amino acids with a hitherto unknown function. In the present study, by applying proteomic methodology to analyze the sodium dodecyl...
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doi:10.1128/JVI.13.2.411-418.1974
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journal_title:Journal of virology
pub_type: 临床试验,杂志文章
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abstract::Influenza A viruses (IAVs) remain a significant public health threat, causing more than 300,000 hospitalizations in the United States during the 2015-2016 season alone. While only a few IAVs of avian origin have been associated with human infections, the ability of these viruses to cause zoonotic infections further in...
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pub_type: 杂志文章
doi:10.1128/JVI.65.11.6165-6172.1991
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journal_title:Journal of virology
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doi:10.1128/JVI.02625-12
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abstract::Autonomous parvoviruses are thought to uniquely encapsidate single-stranded DNA of minus polarity. In contrast, the defective adeno-associated viruses separately encapsidate equal amounts of plus and minus DNA strands. We reexamined the uniqueness of minus strand encapsidation for the autonomous parvoviruses. Although...
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pub_type: 杂志文章
doi:10.1128/JVI.49.2.319-324.1984
更新日期:1984-02-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.8133-8137.1996
更新日期:1996-11-01 00:00:00
abstract::Heron hepatitis B virus (HHBV) is an avian hepadnavirus that is closely related to duck hepatitis B virus (DHBV). To learn more about the mechanism of hepadnavirus replication, we characterized a clone of HHBV that contains a substitution of DHBV sequence from nucleotide coordinates 403 to 1364. This clone, named HDE1...
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pub_type: 杂志文章
doi:10.1128/JVI.70.12.8310-8317.1996
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.29.3.856-862.1979
更新日期:1979-03-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.22.3.608-618.1977
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pub_type: 杂志文章
doi:10.1128/JVI.21.1.242-258.1977
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pub_type: 杂志文章
doi:10.1128/JVI.72.11.9365-9369.1998
更新日期:1998-11-01 00:00:00
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