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The Human Immunodeficiency Virus Type 1 Packaging Signal and Major Splice Donor Region Have a Conserved Stable Secondary Structure

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Journal J Virol
Date 1992 Jul 1
PMID 1602537
Citations 111
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Abstract

Interaction of cis-acting RNA sequences with nucleocapsid proteins is one of the critical events leading to retroviral genomic RNA packaging. We have derived a potentially stable secondary structure for the packaging signal region of human immunodeficiency virus strain IIIB, using a combination of biochemical analysis and computer modelling. This region encompasses the major splice donor (SD), which is found in a highly structured conserved stem-loop. Comparison with other published human immunodeficiency virus type 1 sequences shows almost absolute nucleotide conservation in base-paired regions required to maintain this structure. Presently and previously described packaging-defective mutants would disrupt the structure. The structure depends on base pairing between nucleotide sequences 5' of the major SD which are common to both genomic and subgenomic RNAs and sequences 3' of SD which are unique to the unspliced RNA. This may explain how in retroviruses such as Rous sarcoma virus, mutations in regions common to genomic and subgenomic RNA might prevent packaging of the unspliced mRNA by disrupting a signal structure which can exist only in the genomic RNA species.

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References
1.
Marquet R, Baudin F, Gabus C, Darlix J, Mougel M, Ehresmann C . Dimerization of human immunodeficiency virus (type 1) RNA: stimulation by cations and possible mechanism. Nucleic Acids Res. 1991; 19(9):2349-57. PMC: 329442. DOI: 10.1093/nar/19.9.2349. View

2.
Walker T, Johnson K, Olsen G, Peters M, Pace N . Enzymatic and chemical structure mapping of mouse 28S ribosomal ribonucleic acid contacts in 5.8S ribosomal ribonucleic acid. Biochemistry. 1982; 21(10):2320-9. DOI: 10.1021/bi00539a008. View

3.
Zuker M, Jaeger J, Turner D . A comparison of optimal and suboptimal RNA secondary structures predicted by free energy minimization with structures determined by phylogenetic comparison. Nucleic Acids Res. 1991; 19(10):2707-14. PMC: 328190. DOI: 10.1093/nar/19.10.2707. View

4.
Lever A, Richardson J, Harrison G . Retroviral RNA packaging. Biochem Soc Trans. 1991; 19(4):963-6. DOI: 10.1042/bst0190963. View

5.
Alford R, Honda S, Lawrence C, Belmont J . RNA secondary structure analysis of the packaging signal for Moloney murine leukemia virus. Virology. 1991; 183(2):611-9. DOI: 10.1016/0042-6822(91)90990-s. View