Abstract:
:Retrovirus infectivity is the result of a cooperative interaction of three structural genes, gag, pol, and env. Since the L-cell endogenous retrovirus (LCV) lacks the env gene translation product, our aim was to study the biological and molecular basis of its non-infectiousness. Fusion experiments between LCV and homologous or heterologous cells demonstrated that virus production could be obtained only after LCV artificial penetration in murine cells and that the new progeny was still noninfectious. Northern blot analysis and heteroduplex mapping of the genomic RNA revealed a 0.99 kb deletion including the 3' region of the pol reading frame, the whole xenotropic and part of the ecotropic domain of the env gene. The results suggest that the observed deletion is responsible for the absence of the gp 70 and the gp 15 E molecules in the virion and seems therefore to be the molecular basis for the non-infectiousness of this retrovirus.
journal_name
Arch Viroljournal_title
Archives of virologyauthors
De Giuli Morghen C,Custode P,Lavanga E,Negri A,Radaelli F,Radaelli Adoi
10.1007/BF01315566subject
Has Abstractpub_date
1988-01-01 00:00:00pages
99-110issue
1-2eissn
0304-8608issn
1432-8798journal_volume
102pub_type
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