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. 1986 Dec 1;5(12):3083-90.
doi: 10.1002/j.1460-2075.1986.tb04614.x.

The sequence of carnation etched ring virus DNA: comparison with cauliflower mosaic virus and retroviruses

R Hull  1 , J Sadler, M Longstaff
Affiliations

The sequence of carnation etched ring virus DNA: comparison with cauliflower mosaic virus and retroviruses

R Hull et al. EMBO J. .

Abstract

Carnation etched ring virus (CERV) DNA comprises 7932 bp. CERV primer binding sites and overall genome organization are similar to those of the related cauliflower mosaic virus (CaMV). The six open reading frames of CERV showed amino acid homology (50-80%) with CaMV ORFs I-VI; no homologues of CaMV ORFs VII or VIII were found. CERV ORFs 1-5 interface each other with the sequence ATGA. The comparison of CERV ORF5 with CaMV ORFV highlighted regions which show homologies to retrovirus gag/pol protease, RNase H and DNA polymerase domains; the possibility that the DNA polymerase domain comprises two subdomains, operating off different templates, is discussed. Both CERV and CaMV ORFs I have sequence homology to tobacco mosaic virus P30 and plastocyanin.

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