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. 1996 Mar;70(3):2044-8.
doi: 10.1128/JVI.70.3.2044-2048.1996.

Defined large-scale alterations of the human cytomegalovirus genome constructed by cotransfection of overlapping cosmids

G Kemble  1 , G Duke, R Winter, R Spaete
Affiliations

Defined large-scale alterations of the human cytomegalovirus genome constructed by cotransfection of overlapping cosmids

G Kemble et al. J Virol. 1996 Mar.

Abstract

We have constructed defined human cytomegalovirus (CMV) mutants by cotransfecting overlapping cosmid clones spanning the 230-kbp genome. Using this strategy, we have introduced a 13-kbp region of DNA from a virulent strain of CMV into a defined position within the avirulent CMV(Towne) genome. Although more than 80% of the genome of these recombinant viruses was derived from Towne DNA, their plaque morphology more closely resembled that of Toledo. To date, CMV is the largest virus and requires the greatest number of cosmids to be regenerated via overlapping cosmid cotransfection.

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