Modulation of HIV-1 gene expression by binding of a ULM motif in the Rev protein to UHM-containing splicing factors.
Nucleic Acids Res. 47, 4859-4871 (2019)
The HIV-1 protein Rev is essential for virus replication and ensures the expression of partially spliced and unspliced transcripts. We identified a ULM (UHM ligand motif) motif in the Arginine-Rich Motif (ARM) of the Rev protein. ULMs (UHM ligand motif) mediate protein interactions during spliceosome assembly by binding to UHM (U2AF homology motifs) domains. Using NMR, biophysical methods and crystallography we show that the Rev ULM binds to the UHMs of U2AF65 and SPF45. The highly conserved Trp45 in the Rev ULM is crucial for UHM binding in vitro, for Rev co-precipitation with U2AF65 in human cells and for proper processing of HIV transcripts. Thus, Rev-ULM interactions with UHM splicing factors contribute to the regulation of HIV-1 transcript processing, also at the splicing level. The Rev ULM is an example of viral mimicry of host short linear motifs that enables the virus to interfere with the host molecular machinery.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
U2af Homology Motif; Rna Recognition; Terminal Domain; In-vitro; Peptide; Translation; Expansion; Sf3b155; Design
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2019
Prepublished im Jahr
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
0305-1048
e-ISSN
1362-4962
ISBN
Bandtitel
Konferenztitel
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Band: 47,
Heft: 9,
Seiten: 4859-4871
Artikelnummer: ,
Supplement: ,
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Verlag
Oxford University Press
Verlagsort
Great Clarendon St, Oxford Ox2 6dp, England
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0000-00-00
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Prüfer
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0000-00-00
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0000-00-00
Anmelder/Inhaber
weitere Inhaber
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Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
Immune Response and Infection
PSP-Element(e)
G-503000-001
G-502700-009
G-502700-001
G-509800-002
Förderungen
Copyright
Erfassungsdatum
2019-03-26